Estadística
Análisis de datos, distribuciones de probabilidad y pruebas de hipótesis.
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bank survey a regional bank is analyzing its customer base to improve i…
\(0.5\)
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bank survey a regional bank is analyzing its customer base to improve i…
None of the provided options (0.6, 0.4, 0.3, 0.5) is correct. The marginal relative frequency of customers preferring online banking is \(0.5\).
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lydia and kaden measure the speed of the wind for an experiment in thei…
\(5\)
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bank survey a regional bank is analyzing its customer base to improve i…
\(0.5\)
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bank survey a regional bank is analyzing its customer base to improve i…
\(0.5\)
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bank survey a regional bank is analyzing its customer base to improve i…
150
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bank survey a regional bank is analyzing its customer base to improve i…
270
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sedan vs. suv by age preference a car dealership conducted a survey amo…
60 Sedans for 30 or older, 240 total in "30 or older" row, 120 total in "Sedans" column.
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advising services scenarios a financial planner is examinig the portfol…
\(0.4\)
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a financial analyst is preparing a spreadsheet to analyze the investmen…
0.6
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read this excerpt from a passage. the ivory trade centers on african el…
Sadly, this means that a tusk cannot be removed like a tooth.
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which of the following is an informal definition of hot dog? dogs ranke…
Dogs ranked: 1) real dogs, 2) bagel dogs, 3) hot dogs.
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read the following sentence: after working a double shift, making the l…
exhausted
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read the following sentence: charlie made friends easily because of his…
present since birth
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which of the following is a simple sentence? flannel shirts and pumpkin…
Fall means flannel shirts and pumpkin pie.
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use this dictionary entry to answer the question. ir - (prefix): not la…
C. will never change
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what is the meaning of the word academics as it is used in paragraph 9 …
school work
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unit: discovering implied meaning progress: the movement of the progres…
Getting a stuffed dog for my fourth birthday instead of the Tonka truck I really wanted. I cried about it for days!
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what does the word boisterous mean in paragraph 4? unpleasant cheerful …
lively
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use this dictionary entry to answer the question. seam: a line formed w…
B. dressmaker
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discovering implied meaning unit: discovering implied meaning progress …
A cricket chirped somewhere in the darkness and lulled him to sleep.
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unit: discovering implied meaning progress: the movement of the progres…
"Dinner will be ready when you get here."
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the movement of the progress bar may be uneven because questions can be…
laws
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read the following sentences: at first people were afraid to speak out …
a government controlled by one person
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a data set includes 108 body temperatures of healthy adult humans havin…
A. This suggests that the mean body temperature is lower than \(98.6^{\circ}F\).
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a data set includes 108 body temperatures of healthy adult humans havin…
\(98.038^{\circ}F<\mu<98.362^{\circ}F\)
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a clinical trial was conducted to test the effectiveness of a drug for …
The confidence interval **does not include** the mean wake time of \(104.0\space min\) before the treatment, so the means before and after the treatment **are different**. This re…
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a clinical trial was conducted to test the effectiveness of a drug for …
\(73.8\) min\(<\mu<92.4\) min Since the \(90\%\) confidence interval \((73.8,92.4)\) does not contain the value \(104.0\) (the mean wake - time before treatment), it suggests that…
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what percentage of the shape is blue? write your answer using a percent…
30%
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7 strategies for decoding word meaning *use context clues to formulate …
C. moneymaking
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linear equations w/ distribution (lev 2) score: 0/2 penalty: 1 off ques…
\(x=-1\)
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allegory what is an allegory? allegory - a story, poem, or picture that…
Do not blindly listen to what strangers tell you.
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what percentage of the shape is purple? write your answer using a perce…
24%
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use the sample data and confidence level given below to complete parts …
$0.038 < p < 0.050$
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you are the operations manager for an airline and you are considering a…
\(n = 2626\)
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translate the statement into a confidence interval. approximate the lev…
The confidence interval for the proportion is $(0.695,0.765)$. The interval is a $98.8\%$ confidence interval.
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a magazine provided results from a poll of 1000 adults who were asked t…
- The value of $\hat{p}$ is $0.11$. - The value of $\hat{q}$ is $0.89$. - The value of $n$ is $1000$. - The value of $E$ is $0.05$. - The value of $p$ is (unknown, population prop…
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in the country of united states of heightlandia, the height measurement…
\(0.5111\)
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question when adding numbers, the sum will have: select the correct ans…
as many decimal places as the number with fewest decimal places
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question choose the correct statement. select the correct answer below:…
Leading zeros are never significant.
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question a measurement is ______ if it yields similar results when repe…
C. precise
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find the area under the standard normal curve in - between z = - 0.18 a…
\(0.3566\)
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the probability a car salesman sells a car to a customer is 0.05 assumi…
\(0.882\)
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at honea college, 100 - level classes are basic degree requirements tha…
Approximately \(9.4\%\)
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a researcher wishes to estimate, with 95% confidence, the population pr…
\(n = 2213\)
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a researcher wishes to estimate, with 95% confidence, the population pr…
\(2401\)
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over a 200 - year period, a volcano erupted once. according to this inf…
C. 0.5%
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translate the statement into a confidence interval. approximate the lev…
The confidence interval for the proportion is \((0.692,0.768)\)
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in a group of 30 rabbits, 27 have brown fur, and three have white fur. …
A. 90%
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translate the statement into a confidence interval. approximate the lev…
The interval is a $99.6\%$ confidence interval.
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translate the statement into a confidence interval. approximate the lev…
\((0.730,0.810)\)
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in a survey of 2007 adults in a recent year, 718 made a new years resol…
Interpretation: With 90% confidence, we can say that the population proportion of adults who made a New Year's resolution to eat healthier is between \(0.340\) and \(0.378\). With…
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in a survey of 2007 adults in a recent year, 718 made a new years resol…
\((0.337,0.379)\)
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in a survey of 2007 adults in a recent year, 718 made a new years resol…
$(0.340,0.376)$
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what is a fallacy? a. a fallacy is a fact or assumption used in an argu…
A. Company A makes the best pickup trucks in the world. More people drive Company A pickups than any other light truck. This argument is deceptive because the fact that a large nu…
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chana and josiah started skating at the same time in the same direction…
The point of intersection \(H\) is \((10,30)\), which means that after 10 seconds, both Chana and Josiah are 30 meters from the starting line.
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linear equations w/ distribution (lev 1) score: 1/2 penalty: 1 off ques…
$y = 2$
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linear equations w/ distribution (lev 1) score: 0/2 penalty: 1 off ques…
\(10\)
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question 3 read the passage from \the tell-tale heart.\ how, then, am i…
unreliable
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question 9 of 10 talia was a scientist whose research compared the birt…
C. Populate an infographic with her birth rate statistics in a slide presentation.
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question 18 of 20 read the following passage from an analysis essays bo…
C. The claim is not supported with evidence.
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which statement is most clearly objective? a. mosquitoes, according to …
A. Mosquitoes, according to Jenkins, are a major threat to safety.
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the spotted hawk swoops by and accuses me, he complains of my gab and m…
C. To put emphasis on the phrase, 'I too am untranslatable'
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5 which of the following describes the word genre? a german word meanin…
A French word meaning type or kind
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question 12 ages number of students relative frequency 15 - 18 3 % 19 -…
\(15 - 18\): \(7.9\%\), \(19 - 22\): \(21.1\%\), \(23 - 26\): \(5.3\%\), \(27 - 30\): \(23.7\%\), \(31 - 34\): \(15.8\%\), \(35 - 38\): \(26.3\%\)
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the table below shows scores on a math test complete the frequency tabl…
| Score | Frequency | |-------|-----------| | \(30\) | \(1\) | | \(40\) | \(0\) | | \(50\) | \(7\) | | \(60\) | \(4\) | | \(70\) | \(1\) | | \(80\) | \(1\) | | \(90\) | \(8\) | | …
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in a study, the data you collect is reason for leaving last job. this d…
Qualitative (Categorical)
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in a study, the data you collect is number of people unemployed. this d…
Quantitative
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in a study of 135 women, roughly half took estrogen as well as calcium …
a controlled placebo experiment
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decide if each of the following describe an observational study or an e…
1. Observational study 2. Experiment 3. Experiment 4. Observational study 5. Observational study 6. Experiment
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in a study, the sample is chosen by testing every 100th quart of ice cr…
Systematic
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the city of raleigh has 6,300 registered voters. there are two candidat…
$60.0\%$ of the surveyed voters said they'd vote for Brown. This sample statistic suggests that we might expect $3780$ of the $6,300$ registered voters to vote for Brown.
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a political scientist surveys 40 of the current 127 representatives in …
Sample size: \(40\) Population size: \(127\)
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multiple choice question what did the term arab come to mean as islam s…
a speaker of Arabic
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option #1: first period option #2: second period which data distributio…
Option #1: First Period
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compare the mean and median of the following data. is the data symmetri…
The mean and median of the data are both \(84\), so the data is symmetric.
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use the image to answer the question. compare the mean and the median. …
The mean ($\approx1.08$) is slightly greater than the median (1). The data is not symmetric.
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explain how the shape of a distribution determines the appropriate meas…
The shape of the distribution determines the appropriate measure of center. For symmetrical data, the mean is a good measure. For skewed data, the median is often more appropriate…
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a team of students were comparing the mean and median of a dat plot and…
Point \( A \)
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(1 point) when comparing the means and medians of skewed data, which of…
The mean and median differ, based on the direction and amount of the skew.
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compare the values and calculate the median of the given data.
The median of the data is \(2\)
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ox plots - item 20909 he two plots compare the top 25 home run hitters …
The range of values for 2007 is greater than the range for 2008 (This option is NOT true)
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you keep track of the temperatures for two weeks and make a five - numb…
The first box - plot.
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the box plots shown represent the average mileage of two different type…
- Greater for SUVs: None - Greater for Sedans: Range, Maximum value, IQR - Cannot Tell Which Is Greater: Mean, Number of data points, Median
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quartiles - item 34001 find the interquartile range of the data set sho…
$11$
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the prices of a cup of coffee at 9 different coffee shops are listed be…
Minimum: \(\$1.25\), First Quartile: \(\$1.34\), Median: \(\$1.48\), Third Quartile: \(\$1.65\), Maximum: \(\$1.75\) (corresponding to the option where these values are present)
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a data set has 40 data points. enter values to answer each of the quest…
1. \(20\) 2. \(10\) 3. \(20\)
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a survey about the cost of cell phone plans was given to 100 people. th…
The number of people who pay more than \(\$60\) is \(50\). The number of people who pay less than \(\$72\) is \(75\).
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for the data set shown, find the median, the 1st quartile, and the 3rd …
First quartile: \(14\), Median: \(22\), Third quartile: \(28\)
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for the data set shown, find the median, the 1st quartile, and the 3rd …
First quartile: \(12\), Median: \(24\), Third quartile: \(35\)
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the number of electoral votes each state is assigned is determined by t…
\(47\) votes
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a month ago jason lost his job due to circumstances beyond his control,…
His immune response is dropping.
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claudia just received devastating news about her semi rig. things seem …
B. alarm
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the expected proportions of colors of m&ms according to the mars candy …
The first - term (for blue) is approximately \(31.72\) and the last - term (for yellow) is approximately \(1.71\)
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arush took baby steps to school. he was returning after a month of stay…
A. Arush is able to walk with little discomfort.
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what does the word analogy mean as it might be used in an informational…
a comparison that an author uses to show how two things are similar
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you are conducting a goodness of fit test for the claim that a variable…
|Category|Observed Frequency|Expected Frequency|\(\frac{(O - E)^2}{E}\)| |---|---|---|---| |A|12|13.95|0.273| |B|19|27.9|2.839| |C|41|37.2|0.388| |D|21|13.95|3.563| \(\chi^{2}=7.0…
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which fact supports anthonys opinion that all adults should have the ri…
we, the whole people, who formed the Union.
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on occasion, medical studies need to model the proportion of the popula…
- \(H_0\): The observed frequencies are in agreement with proportion of people in each age group. \(H_a\): The observed frequencies are not in agreement with proportion of people …
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test the claim at 5% significance. round to 4 decimals when appropriate…
There is enough evidence to conclude that the teacher's distribution of grades is not as the teacher claims.