For numbers 31-37, refer to the given problem.The average time it takes for a group of college students to complete a certain examination is46.2 minutes whereas the standard deviation is 8 minutes. Fifty college students were randomly selected totake the examination. Assume that the variable is normally distributed. What is the probability that the mean.time it takes for the group to complete the test will be less than 43 minutes?32. WnarB. 4533A. &34. What is asked in the given problem?A. P(X < 43)C. P(X>43)B. P(<43)D. P(>43)35. What formula is to be used in finding the z-score?D. z = 4ViA. z = -XB. z =C. z =36. What is the answer to the question?B. 15.54%A. 0.23%C. 23%D. 34.46%

Given that Mean=46.2 Standard deviation=5 Sample size=50

Answered: 34. What is asked in the given problem?…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Sample statistics: s 8.2; n = 3 14. Claim: σ<7.5; a = 0.05; Sample statistics: s = 8.8; n = 51. 15. Salaries. The salaries of
Only need help with D and E
which one is the greatest?
What's the t= ? And the p-value?
Im needing help solving the attached image
G. Find the 40th percentile. 21.8 18.9 20.00 0.75
When a woman thinks she may be pregnant, she often uses an over-the-counter pregnancy test to confirm or deny if she is pregnant. The two-way table below represents the results of one brand of pregnancy test on 500 women, some of whom are pregnant and some are not. Round percentage answers to the nearest tenth of a percent to answer the following two questions. Negative Test Result Positive Test Result (a) What is the sensitivity for this test? % Pregnant 66 131 (b) What is the specificity for this test? % Add Work Check Answer Not Pregnant 239 64
snip
In a random sample of seven people, the mean driving distance to work was 22.5 miles and the standard deviation was 5.9 miles. Assume the population is normally distributed and use the t-distribution to find the margin of error and construct a 95% confidence interval for the population mean u. Interpret the results. Identify the margin of error. (Round to one decimal place as needed.) Construct a 95% confidence interval for the population mean. (Round to one decimal place as needed.) Interpret the results. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) O A. With % confidence, it can be said that most driving distances to work (in miles) in the population are between the interval's endpoints. O B. It can be said that % of the population has a driving distance to work (in miles) that is between the interval's endpoints. OC. With % confidence, it can be said that the population mean driving distance to work…
A sample of 2600 people were asked if they felt "good" about the economy. A 95% CI for the proportion who answer 'yes' is: 0.54 < p < 0.62 Many textbooks use the symbol p for the sample proportion. What is p in this problem? Submit Question Previous
← The results of a survey on the belief that stem cell research has merit are shown in the table below. % X 1524 SEP 28 95% CI (0.7052, 0.7434) Here, X denotes the number who believed that stem cell research has merit. Complete parts a and b below. N 2104 a. Explain how to interpret "Sample p" and "95% CI" in this table. The "Sample p" is the proportion of all respondents in the sample who believe stem cell research has merit, 1524/2104 0.72. The "95% CI" is the 95% confidence interval and it means that we can be 95% confident that the interval 0.7052 to 0.7434 contains the population proportion. (Round to four decimal places as needed.) b. What is the 95% margin of error associated with the poll? The 95% margin of error is. (Round to four decimal places as needed.) F5 6 Sample p 0.724335 tv F6 Clear all & F7 Check answer Ndi 8 DIL 9 elp students like you learn core concep for 10 level of significance and two (0-65) (0-35) 1000 Chegg Study F9 A O
your car is more crowded than you think. table 5.8 reports results from a 1969 personal transportation survey on "home-to-work" trips in metropolitan areas. The survey stated that the average car occupancy was 1.4 people. check that calculation.

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS

34. What is asked in the given problem? A. P(X < 43) C. P(X>43) B. P(<43) D. P(>43) 35. What formula is to be used in finding the z-score? A. z = H-X X- B. z = C. z = D. z = H 36. What is the answer to the question? B. 15.54% A. 0.23% C. 23% D. 34.46%