Statistik
Datenanalyse, Wahrscheinlichkeitsverteilungen und Hypothesentests.
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complete the sentence with the word that best fits the overall meaning …
misrepresentation
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a random sample of 175 students was selected from a large high school. …
chi - square test for association/independence because the data come from one random sample.
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a political pollster selects a random sample of 75 registered voters fr…
Yes, the smallest expected count is \(8.64\), so all expected counts are at least \(5\)
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a random sample of 150 people in a large city was selected. they were e…
chi - square test for association/independence because the data come from one random sample
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complete the sentence with the word that best fits the overall meaning …
misrepresentation
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complete the sentence with the word that best fits the overall meaning …
direct
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complete the sentence with the word that best fits the overall meaning …
diverse
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complete the sentence with the word that best fits the overall meaning …
egotism
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in your own words... 1. why are word sets like there/theyre/their and y…
1. Word sets like there/they’re/their and your/you’re are called homophones because they sound the same but have different meanings and spellings. 2. Contractions like they’re, yo…
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a researcher would like to investigate if the distribution of the numbe…
Sunday, fewer births than expected
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complete the sentence with the word that best fits the overall meaning …
a compulsion
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a researcher would like to investigate if the distribution of the numbe…
\(\chi^{2}=18.68\), \(P\) - value is between \(0.0025\) and \(0.005\)
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complete the sentence with the word that best fits the overall meaning …
prosperous
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answer attempt 1 out of 2 the graph shows determine the type of correla…
No correlation.
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a researcher would like to investigate if the distribution of the numbe…
\(H_0\): The distribution of births is uniform across the days of the week. \(H_a\): The distribution of births is not uniform across the days of the week.
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after a product recall, a company solicits feedback from a random sampl…
disapprove, more than expected
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a researcher would like to investigate if the distribution of the numbe…
Yes, all of the conditions for inference are met.
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complete the sentence with the word that best fits the overall meaning …
congestion
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a company is started by four friends. the company was ericas idea, so s…
Jen, more than expected.
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complete the sentence with the word that best fits the overall meaning …
a virtuosic
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a researcher would like to investigate if the distribution of the numbe…
Reject $H_0$. There is convincing evidence that the distribution of births is not uniform across the days of the week.
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a doctor used to believe that babies were equally likely to be born any…
Reject $H_0$. There is convincing evidence that babies are not twice as likely to be born on a weekday (Monday through Friday) than on a weekend (Saturday and Sunday).
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complete the sentence with the word that best fits the overall meaning …
misconception
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a company is started by four friends. the company was ericas idea, so s…
\(H_0:p_{Erica} = 0.7,p_{Jen}=0.1,p_{Heather}=0.1,p_{Tonya}=0.1\) and \(H_a:\text{Not all of the }p_i\text{'s are as stated}\) (the third option).
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complete the sentence with the word that best fits the overall meaning …
obscure
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complete the sentence with the word that best fits the overall meaning …
conclusive
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complete the sentence with the word that best fits the overall meaning …
fluent
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an employee claims that 20% of the email she receives is personal, 60% …
\(H_0\): The distribution of emails received is still 20% personal, 60% work related, and 20% spam. \(H_a\): The distribution of emails received is no longer 20% personal, 60% wor…
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students at a large university have four places to get lunch: the cafet…
Yes, all of the conditions for inference are met.
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according to a government website, 42% of us citizens are democrats, 34…
\(\chi^{2}=2.58\), \(P -\)value is greater than \(0.25\) (the fourth option: \(\chi^{2}=2.58\), \(P -\)value is greater than \(0.25\))
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a prize wheel at a carnival consists of five equal sectors of these col…
\(\chi^{2}=7.60\), \(P\) - value is between \(0.10\) and \(0.15\) (the first option)
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according to a government website, 42% of us citizens are democrats, 34…
Yes, all of the conditions for inference are met.
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a manufacturer of large kitchen appliances keeps track of the costs of …
No, the Large Counts condition is not met.
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according to a government website, 42% of us citizens are democrats, 34…
\(H_0\): The distribution of political party in the municipality is \(42\%\) Democrat, \(34\%\) Republican, and \(24\%\) Independent. \(H_a\): The distribution of political party …
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the annual profits for a company are given in the following table, wher…
292.2 thousand dollars
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students at a large university have four places to get lunch: the cafet…
\(H_0\): The distribution of lunch preferences is 70% cafeteria, 10% hut, 10% taco wagon, and 10% pizza place. \(H_a\): The distribution of lunch preferences is not 70% cafeteria,…
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it is common knowledge that a fair coin lands heads up 50% of the time …
\(H_0\): The distribution of flips is 25% heads, 25% tails, and 50% edge. \(H_a\): The distribution of flips is not 25% heads, 25% tails, and 50% edge. (First option)
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question which of the following regressions represents the strongest li…
Regression 2
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name date division and multiplication facts sheet 2 multiplication and …
1) \(30\div5 = 6\) 2) \(28\div7 = 4\), \(28\div4 = 7\) 3) \(40\div8 = 5\), \(40\div5 = 8\) 4) \(42\div6 = 7\), \(42\div7 = 6\) 5) \(32\div4 = 8\), \(32\div8 = 4\) 6) \(56\div7 = 8…
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11. a 99% confidence interval for a population proportion is calculated…
A. \(0.153\) to \(0.227\)
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a survey was given to people who own a certain type of car. what percen…
65
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being informed is one of the most important responsibilities of citizen…
Social media: digital platforms allowing people to create and share information in virtual communities. Non - fiction books and documentary films: in - depth stories on specific t…
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10. alec and ellie are each attempting to estimate the proportion of ad…
Alec's interval (0.361 to 0.499) is computed correctly.
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question which of the following regressions represents the strongest ne…
Regression 1
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8. if given the choice of drinking tea or coffee, what proportion of os…
The sample proportion must have been \(0.612\) and the margin of error must have been \(0.042\)
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8. if given the choice of drinking tea or coffee, what proportion of os…
The sample proportion is \(0.612\) and the margin of error is \(0.042\)
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but that night was different. the lights were farther south. where were…
A. Different
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8th grade math - scientific notation erick kinball scientific notation …
Number less than 1
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red response question: the power of perspective in the giver in lois lo…
- Jonas' new role as Receiver of Memory broadens his perspective to question community norms like release. - His father (the Nurturer) has a narrow, rule - bound view of release, …
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question 6 (1 point) describe the strength and direction of the correla…
c. Weak Negative
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question 5 (1 point) describe the strength and direction of the correla…
d. Weak Positive
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question 4 (1 point) describe the direction of the correlation. number …
C. Positive
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question 3 (1 point) describe the strength and correlation of the scatt…
A. Strong Negative
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26. the primary reason people dont budget is because they lack the beha…
26. True 27. Gives you permission to spend 28. Right now - it's never too early!
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question 2 (1 point) interpret the strength and direction of the correl…
B. Strong Negative
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2. what do sociologists rely on to ensure their research is meaningful?…
B. Valid and reliable research
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they eat and drink out of vessels of earth or glass, which make an agre…
greed and self - interest
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answer the following. (a) the standard normal curve is graphed below. s…
\(0.9772\)
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assume that the amounts of weight that male college students gain durin…
D. Since the original population has a normal distribution, the distribution of sample means is a normal distribution for any sample size.
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assume that females have pulse rates that are normally distributed with…
a. \(0.6255\) b. \(0.7389\)
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in the venn diagram below, b and d are events in the sample space s. (n…
For part (a), shade the region of the sample space \(S\) that is outside the circle \(D\). For part (b), shade the entire circle \(B\) and the entire circle \(D\).
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in the data set below, what is the interquartile range? 1 4 6 9 8 4
\(4\)
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in the data set below, what are the lower quartile, the median, and the…
lower quartile \(=5\), median \(=6\), upper quartile \(=8\)
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find the indicated iq score. the graph to the right depicts iq scores o…
\(102.0\)
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find the area of the shaded region. the graph to the right depicts iq s…
\(0.5000\)
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assume that a randomly selected subject is given a bone density test. t…
\(0.9418\)
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find the indicated z score. the graph depicts the standard normal distr…
\(-1.38\)
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before every flight, the pilot must verify that the total weight of the…
\(0.8485\)
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when women were finally allowed to become pilots of fighter jets, engin…
B. The part (a) probability is more relevant because the seat performance for a single pilot is more important.
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the overhead reach distances of adult females are normally distributed …
a. \(0.1170\) b. \(0.8315\) c. The original population is normally distributed.
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a cell phone company wants to determine the average amount of data that…
one thousand of their customers who most recently signed up with the company
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use the box - and - whisker plot to answer the following. (a) what is t…
(a) 75 (b) 90 (c) 80
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asian americans and the civil rights movement overview of asian rights …
to recognize the wrong of interning Japanese Americans
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gustavo is in a contest where he will win one of four possible prizes. …
Gustavo used a simulation where the data is quantitative.
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why does situational and dramatic irony often contribute to the develop…
They cause a reader to think beyond the surface level and their own expectations.
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what is the difference between connotation and denotation? (1 point) co…
D. Connotation is the associations attached to a word, and denotation is a word’s literal meaning.
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use the given confidence interval to find the margin of error and the s…
$\hat{p}=0.774$
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what statement does the shaded region represent? not c a or b and c b a…
A or B
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a data set lists weights (lb) of plastic discarded by households. the h…
a. The \(z\) - score is \(z = 2.54\) b. The highest weight is significantly high.
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express the confidence interval ( 0.251pm0.045 ) in the form of ( hat{p…
\(0.206 < p < 0.296\)
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3. a golfer has a 40% chance of making an 8 foot putt. x = # of putt at…
A. \(1.5\) B. \(0.784\) C. \(0.046656\)
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use the given confidence interval to find the margin of error and the s…
$E = 0.013$
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use the given confidence interval to find the margin of error an(0.743,…
$\hat{p}=0.756$
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use the given confidence interval to find the margin of error and the s…
The margin of error $E = 0.013$
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2. given the following table, find: a. ( p(x < 2) ) b. ( p(x leq 2) ) c…
A. \(0.15\) B. \(0.40\) C. \(0.95\) D. \(0.80\) E. \(2.6\)
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the governor of a state wanted to assess the public education system of…
$1.3$
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express the confidence interval (0.064, 0.154) in the form of \\( \\hat…
$0.109-0.045 < p < 0.109 + 0.045$, so $0.064 < p < 0.154$
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express the confidence interval ( 0.222 < p < 0.444 ) in the form ( hat…
$0.333\pm0.111$
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4. for each scenario listed, determine what type of probability distrib…
A. Hyper - Geometric B. Poisson C. Hyper - Geometric D. Binomial E. Poisson F. Binomial
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statistics chapter 4 practice test – fall semester 2025 – ahs – room 40…
A. Continuous, B. Discrete, C. Continuous, D. Continuous, E. Continuous, F. Discrete, G. Discrete
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the heights of 8th graders are modeled using the normal distribution sh…
Percentage of total area shaded: \(99.7\%\) \(U = 59.4\), \(V=62.7\), \(W = 66\)
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use the box - and - whisker plot to answer the following.(a) what is th…
(a) \(35\) kg (b) \(45\) kg (c) \(40\) kg
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use the box - and - whisker plot to answer the following. (a) what is t…
(a) \(45\) (b) \(35\) (c) \(25\)
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the governor of a state wanted to assess the public education system of…
\(\mu_{\bar{x}} = 88\)
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use the box - and - whisker plot to answer the following.(a) what is th…
(a) \(60\) (b) \(65\) (c) \(72\)
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the governor of a state wanted to assess the public education system of…
\(\sigma_{\bar{x}}\approx1.9\)
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the governor of a state wanted to assess the public education system of…
\(88\)
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an airliner carries 400 passengers and has doors with a height of 72 in…
C. Since men are generally taller than women, a design that accommodates a suitable proportion of men will necessarily accommodate a greater proportion of women.
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an airliner caries 400 passengers and has doors with a height of 72 in.…
A. The probability from part (b) is more relevant because it shows the proportion of flights where the mean height of the male passengers will be less than the door height.
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interpreting a box - and - whisker plot use the box - and - whisker plo…
(a) \(30\) (b) \(10\) (c) \(27\)