Many people believe that the average number of Facebook friends is 150. The population standard deviation is 39.5. A randomsample of 41 high school students in a particular county revealed that the average number of Facebook friends was 157. Ata-0.10, is there sufficient evidence to conclude that the mean number of friends is greater than 1507Show Transcribed TextPall uFind the critical value(s). Round the answer to at least two decimal places. If there is more than one critical value, separatethem with commas.Critical value(s):Show Transcribed TextGCompute the test value. Always round z score values to at least two decimal places.Z= Make the decision.(Choose one)RejectDo not rejectType here to searchSkip Partis notSummarize the results.There (Choose one)averadisShow Transcribed Textthe null hypothesis.3Check AnswerX 5 ?enough evidence to support the claim that state employees earn onemployees.Ⓒ2022 M

Given that Sample size n =41 Sample mean=157 Population standard deviation =39.5

Answered: Many people believe that the average…

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

Suppose a sample of 830830 Americans over 4141 is drawn. Of these people, 673673 don't smoke. Using the data, estimate the proportion of Americans over 4141 who smoke. Enter your answer as a fraction or a decimal number rounded to three decimal places.
Mr. Zuro finds the mean height of all 16 students in his statistics class to be 67.0 inches. Just as Mr. Zuro finishes explaining how to get the mean, Danielle walks in late. Danielle is 63.6 inches tall. What is the mean height of the 17 students in the class? The mean height of the 17 students in the class is inches. (Type an integer or a decimal. Do not round.)
The NAEP music assessment scores for eighth grade students are approximately N (150, 35). Find the z-scores by standardizing the following scores: 150, 140, 100, 180, and 230. The percentile score is the proportion of students who would score LESS THAN OR EQUAL TO the score for the individual student. Compute the percentile scores for the five scores.
A study found that 1.21% of Social Security recipients are too young to vote. If 800 Social Security recipients are randomly selected, find the mean of the number of recipients who are too young to vote. Round your answer to the nearest hundredth (that is 2 decimal places.)
A couple plans to have 5 children. Assume that girl and boy births are equally likely. Find the mean number of girls in 5 births. Round your answer to one decimal place, if needed.
Suppose 6 students take an exam, and the mean score is 82.5. Five of the student scores are as follows:95, 78, 85, 56, and 96. What is the sixth student’s score?
The histogram displays the number of 2008 births among U.S. women ages 10 to 50 . Each bin represents an interval of two years, and the height of each bin represents the frequency with which the data fall within that interval. A histogram for the number of births by mother’s age for 2008. Height of 62 for ages 14 to 16, height of 202 for ages 16 to 18, height of 369 for ages 18 to 20, height of 415 for ages 20 to 22, height of 441 for ages 22 to 24, height of 470 for ages 24 to 26, height of 487 for ages 26 to 28, height of 460 for ages 28 to 30, height of 403 for ages 30 to 32, height of 326 for ages 32 to 34, height of 252 for ages 34 to 36, height of 177 for ages 36 to 38, height of 99 for ages 38 to 40, height of 46 for ages 40 to 42, height of 17 for ages 42 to 44, and height of 4 for ages 44 to 46. Use the provided histogram to answer questions about the number of births for each age group. How many births occurred among women over the age of 38 ? number of births:What percentage…
In a psychology class, 40 students have a mean score of 89.5 on a test. Then 24 more students take the test and their mean score is 78.3.What is the mean score of all of these students together? Round to one decimal place.
Calculate the appropriate measure of association for this study. Round to the nearest hundredth. In a recent case-control study, investigators enrolled 300 adults with heart disease and 300 healthy adults. During interviews with the participants, the investigators determined participants' use of multivitamins in childhood, which was dichotomized into yes or no. The 2x2 table below shows the frequencies of heart disease case and control status by multivitamin use during childhood. Heart Disease Multivitamin Use Yes No Total Yes 125 175 300 No 135 165 300 Total 260 340 600 QUESTION 4 What is the correct interpretation of the measure of association you calculated in the previous question? (Please consider your calculated number in place of "X" in the answers.) The ODDS of heart disease among people who took multivitamins during childhood is X times the odds of heart disease among people who did not take multivitamins during childhood. The ODDS of multivitamin use during childhood among…
The table available below shows the weights (in pounds) for a sample of vacuum cleaners. The weights are classified according to vacuum cleaner type. At a = 0.10, can you conclude that at least one mean vacuum cleaner weight is different from the others? E Click the icon to view the vacuum cleaner weight data. Let PBu, PBLU. and HTC represent the mean weights for bagged upright, bagless upright, and top canister vacuums respectively. What are the hypotheses for this test? O A. Ho: Peu = HBLU "HTC Ha: HBu * HBLU HTC Weight of Vacuum Cleaners by Type B. Ho: At least one of the means is different. Hg: PBu = HBLU =HTC O C. Ho: HBU PBLU HTC Bagged upright 21 20 18 15 23 24 16 24 Bagless upright Top canister 17 18 20 18 Hg: HBu = HBLU =HTC 23 22 24 26 20 23 O D. Ho: HBU HBLU FHTC Ha: At least one of the means is different. What is the test statistic? Print Done F= (Round to two decimal places as needed.) What is the P-value? P-value = (Round to three decimal places as needed.) What is the…
The distances golf balls travel under laboratory testing conditions are normally distributed. The mean is 312 yards. The probability the golf ball travels further than 319 yards is 0.28. Find the probability a randomly selected golf ball travels between 305 yards and 319 yards. Express the answer as a decimal value rounded to the nearest hundredth.
Most adults would erase all of their personal information online if they could. A software firm survey of 502 randomly selected adults showed that 65% of them would erase all of their personal information online if they could. Find the value of the test statistic. The value of the test statistic : (Round to two decimal places as needed.)

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