Statistiques
Analyse de données, distributions de probabilités et tests d'hypothèses.
-
please note that when you get probabilities that are really small or ve…
The random variable \(X\) is the number of left - handed people in the 12 randomly selected people. ### Part (b)
-
find the probability, to 4 decimal places. it is possible when rounded …
To solve these probability problems, we assume this is a binomial probability problem (since we're dealing with the number of left - handed people, which is a binary outcome: left…
-
find the probability, to 4 decimal places: it is possible when rounded …
To solve these probability problems, we assume a binomial probability distribution (since we're dealing with the number of left - handed people, a binary outcome: left - handed or…
-
approximately 12% of all people are left - handed. consider 12 randomly…
Let \(X\) be the number of left - handed people among the 12 randomly selected people. ### Part (b)
-
a. the first nations people has a strong respect b. the first nations p…
15) d. A and C 16) d. All of the above 17) a. the Great Law of Peace 18) d. power rests with the people, who elect leaders
-
g) at most 3 are scratched. 0.7946 h) at least 8 are scratched. 0.0009 …
To solve part (h) "at least 8 are scratched" (assuming a binomial distribution with \( n = 12 \), let's denote the probability of a scratched pair as \( p \); though not given, we…
-
eyeglassomatic manufactures eyeglasses for different retailers. in marc…
The random variable \( X \) is the number of 12 randomly selected pairs of eyeglasses that have defective lenses due to scratches (or are scratched). ### Part (b)
-
which central theme does juliana want her audience to remember best? a.…
C. Theme D because she will put it at the end of her speech
-
words to know match the following terms with their definitions sepoy vi…
sepoy → a name given to Indian soldiers serving under British leadership viceroy → a person appointed to rule a colony as the representative of a monarch raj → a Hindi word that m…
-
what is the p - value? using a significance level of 5%, what would thi…
\(0.0500\) #### For the conclusion:
-
question 8 which of the following facts about the p - value of a test i…
E. Just (A) and (B) are correct
-
it is commonly believed that the mean body temperature of a healthy adu…
s: a) $H_0: \boldsymbol{\mu = 98.6}$, $H_1: \boldsymbol{\mu eq 98.6}$ b) two - tailed
-
you select a marble without looking and then put it back. if you do thi…
2500
-
if you flip two coins 2,400 times, what is the best prediction possible…
600
-
what are the correct hypotheses? ho: select ≥ 47 hours h1: select > 47 …
- $H_0: \mu = 47$ hours - $H_1: \mu > 47$ hours - Test Statistic = 4.41 - p - value = 0.0000 - Decision: Reject the null hypothesis - Conclusion: There is enough evidence to suppo…
-
if you roll a 6 - sided die 24,000 times, what is the best prediction p…
4000
-
you select a marble without looking and then put it back. if you do thi…
7
-
a statistics student wanted to test the claim that students have a mean…
Even though 138.7 is larger than 130, it is not significantly larger than 130. In other words, the data do not provide enough evidence to conclude that the mean number of Facebook…
-
question 9 score: 4.75/11 answered: 5/11 according to facebooks self - …
mean number of Facebook friends for CCC students
-
respond to the following based on your reading. 11. what benefits resul…
11. Faster decisions, employee empowerment, local adaptation, reduced top management load 12. Cost centers: cost control; profit centers: revenue + cost management; investment cen…
-
practice: describe the standard cost analysis using direct... 10. an un…
10. Labor Rate 11. Labor Efficiency 12. Quantity standard: The expected amount of input (e.g., hours, materials) needed per unit of output. Price standard: The expected cost per u…
-
relevance does it matter? is it on topic? is it on point? irrelevance m…
B. accuracy, convincing, and relevance
-
do people care? relevance does it matter? is it on topic? is it on poin…
C. an arguable statement
-
relevance does it matter? is it on topic? is it on point? irrelevance m…
A. claim, evidence, reason
-
fill in the blanks. 1. a direct materials quantity standard generally i…
1. normal waste (or scrap, spoilage) 2. materials price variance 3. materials quantity variance 4. actual; standard 5. actual output 6. materials quantity 7. labor rate 8. labor c…
-
weakening economy which factors led to a weakening economy in the unite…
speculation in the stock market, unequal distribution of wealth, overproduction
-
practice: define the variance analysis cycles in context wi... 0:20:05 …
12. Wait 13. A budget prepared for a single planned activity level. 14. A budget adjusted to actual activity levels; differs by adapting to volume changes. 15. It isolates the eff…
-
in order to save enough money for his annual vacation, luke created a m…
between July and August
-
at the beginning of each year, annie stepped on her scale and resolved …
between 2013 and 2016
-
a dog show enthusiast recorded the weight of the winning dog at recent …
between 2017 and 2018
-
jasper kept track of how long it took to finish his homework each day. …
between Monday and Tuesday
-
as part of a literacy program, the administration of milford high schoo…
between 2014 and 2017
-
as his familys main cook and shopper, marvin created a food budget. mar…
Between April and May.
-
on their website, a popular bakery downtown published the number of cak…
Between March and May
-
to determine how many staff members she needed, a local coffee shop own…
between Tuesday and Thursday
-
an administrator at the department of motor vehicles (dmv) tracked the …
between March and May
-
a vendor who sold bread at farmers markets counted the number of leftov…
between Thursday and Friday
-
fans of the stamford baseball team compared the number of games won by …
between 2017 and 2020
-
kenneth entered the amount he charged on his credit card each month int…
Between September and November
-
each year, the campers at kellys summer camp try to set that summers re…
between 2015 and 2018
-
liz kept a tally of the number of emails she received each day for a we…
between Wednesday and Saturday
-
to figure out how many vacation days he had left to use, eddie looked o…
between 2012 and 2015
-
sofia kept track of the number of games her soccer team won each year. …
Between 2019 and 2021.
-
at salem consulting, the head of human resources examined how the numbe…
between 2013 and 2015
-
brianna spent a week at the beach and recorded the number of shells she…
between Wednesday and Thursday
-
mrs. scott told students how many rounds to expect in the spelling bee …
$-0.5$
-
leah was in charge of keeping attendance for a local summer camp each y…
$28.5$
-
practice: define the variance analysis cycles in context wi... 1. a/an …
1. revenue variance 2. sales volume 3. spending variance 4. flexible budget 5. variable; fixed 6. activity level 7. activity variances 8. variable; mixed 9. fixed; mixed 10. excep…
-
the drama department recorded how long the annual school play lasted ea…
\(-3\)
-
every year millersburg has a citywide relay and reports the winning tim…
$0$
-
nadine categorized her spending for this month into four categories: re…
\(812\)
-
the bar graph below shows the percentage of students who received each …
\(5\)
-
the median of 5, 7, 2, 9, 8 is: 1 point 5 7 8 6 a bag has 3 red, 5 blue…
7 ### Second Question (Probability)
-
what is the range? check all that apply. 5 9 15 35 25 6 0 3
5, 15, 25, 35
-
what is the range? check all that app
\(10\), \(18\), \(24\), \(28\)
-
what is the range? check all that apply. input, x 0 1 2 3 4 output, y 2…
\(25\), \(30\), \(35\), \(40\), \(45\)
-
what is the range of these points? check all that apply. (8, 2), (12, 9…
2, 9, 16, 23
-
question 6 (5 points) listen the concept of responsibility accounting m…
A. an employee's performance should be evaluated only on those items under his or her control.
-
a jeweler put these gemstones out on display today. rubies: 5 (image of…
\(3:4\)
-
learned helplessness means: - struggling readers depend on support and …
A. struggling readers depend on support and instruction for the development of skills in reading.
-
balanced literacy combines the direct instruction of phonics and word s…
True
-
the median of 5, 7, 2, 9, 8 is: 1 point 5 7 8 6
B. 7
-
which statement regarding second language learners is based on factual …
B. They tend to thrive in classrooms where teachers provide meaningful lessons that support language growth.
-
a sports radio station asked local listeners for their favorite footbal…
1) 23% 2) Cowboys and Raiders 3) More 4) Cowboys 5) 45
-
a local pizzeria tracked which pizza toppings customers purchased. answ…
1) Peppers 2) Sausage and bacon were picked more 3) 30 4) Salami and spinach 5) 45%
-
based on the histogram, what is the greatest number of books a student …
15
-
a) how many students read at least 6 books? a) 8 students c) how many s…
8 students 24 students
-
india asks students at her school, how many books did you read over the…
14
-
a jeweler put these gemstones out on display today. (a) build a diagram…
\(3:4\)
-
use the table to figure out how many feet of each decoration you need t…
The cost to buy the ribbon is \(\$38\). The cost to buy the lights is \(\$45\).
-
use the table to figure out how many feet of each decoration you need t…
- Green Ribbon: \(7\frac{5}{12}\) feet - Total Streamers: \(15\frac{11}{15}\) feet - Orange Flags: \(8\frac{4}{9}\) feet - Total Lights: \(11\frac{1}{4}\) feet
-
you designed a banner to hang at the picnic. the banner is 8 feet long.…
\(17\)
-
1. the marks scored in a form three maths exam were recorded as follows…
a) |Class|Frequency| |----|----| |20 - 29|2| |30 - 39|8| |40 - 49|9| |50 - 59|15| |60 - 69|11| |70 - 79|5| |80 - 89|2| b) \(50 - 59\) c) \(\approx53.73\) d) \(\approx54.67\)
-
4. the distance between two towns a and b is 360km. a minibus left town…
a) i) \(277.5\) km ii) 11:20 a.m. b) \(175\) km
-
3. the math teachers at miller intermediate made an experiment to deter…
\(0.3\)
-
a text that is meant to be performed is called a(n) act drama line scene
drama
-
to determine the meanings of challenging words, the reader should look …
context
-
read the excerpt from act iii of hamlet. ophelia: my lord, i have remem…
The writer made the language more modern.
-
which scatter plot does not show an appropriate line of best fit?
C
-
read the excerpt from act iii of hamlet. the oppressors wrong, the prou…
heartache
-
read the excerpt from act iii of hamlet. to sleep: perchance to dream: …
dying
-
language in a soliloquy hamlet: ... who would fardels bear, to grunt an…
the afterlife
-
read the excerpt from act ii of hamlet. polonius: well be with you, gen…
The metaphor portrays Polonius as foolish and weak.
-
in gardner v. florida (1977), the court ruled that a defendant in a ___…
capital
-
31. what was the peak of the socialist partys influence in oklahoma sta…
31. Election of several members to the state legislature 32. To unite workers in negotiating wages and working conditions collectively
-
rearrange the sentence below to remove any wordy sections. do not chang…
Facebook's privacy policy should prohibit parents from sharing photos of their underage children.
-
rearrange the sentence below to remove any wordy sections. do not chang…
In my opinion, magazines and websites should not publish heavily retouched celebrity photos.
-
rearrange the sentence below to remove any wordy sections. do not chang…
Record labels definitely have an inappropriate amount of power over which artists become popular.
-
finding the mean of a symmetric distribution data set b find the mean o…
Mean of Data Set A: 4.5 Mean of Data Set B: 7
-
find the mean of each data set. mean of data set a:
4.5
-
find the mean of each data set. mean of data set a:
Mean of Data Set A: 3 Mean of Data Set B: 3.5
-
mean of data set a: find the mean of each data set. data set b
Mean of Data Set A: 4 Mean of Data Set B: 6.5
-
a chi-square distribution with 8 degrees of freedom is graphed below. t…
0.633
-
the median of 5, 7, 2, 9, 8 is: 1 point 5 7 8 6
7 (corresponding to the option with "7")
-
the median of 5, 7, 2, 9, 8 is: 1 point 5 7 8 6
7 (corresponding to the option with "7")
-
the median of 5, 7, 2, 9, 8 is: 1 point 5 7 8 6
7 (corresponding to the option with "7")
-
ordering fast food in this lesson, you will learn some useful expressio…
s: 1. c 2. e 3. a 4. g 5. h 6. i 7. j 8. d 9. b 10. f
-
question 3 of 10 with which statement would walt whitman most likely ag…
C. Death doesn't necessarily mean the end to one's existence.
-
question 17 of 20 read these sentences from the declaration of independ…
B. He uses parallelism to create a strong rhythm and memorable ideas.
-
q 10. this question is calculator active. use your calculator to find a…
\(y=-0.821x + 909.105\) (the option \(y=-0.821x + 909.105\))