3. Google conducted a study during the month of December 2019 that measured ways in which people used their Web browsers. Part of the study involved counting the number of files downloaded during the period of the study. The mean number of files downloaded by a random sample of 51 male users was 130.6 with a standard deviation of 22. The mean number of files downloaded by a random sample of 56 female users was 144.1 with a standard deviation of 20. Can you conclude that the mean number of files downloaded differs between males and females? Use a 5% level of significance.
3. Google conducted a study during the month of December 2019 that measured ways in which people used their Web browsers. Part of the study involved counting the number of files downloaded during the period of the study. The mean number of files downloaded by a random sample of 51 male users was 130.6 with a standard deviation of 22. The mean number of files downloaded by a random sample of 56 female users was 144.1 with a standard deviation of 20. Can you conclude that the mean number of files downloaded differs between males and females? Use a 5% level of significance.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
For each of the remaining problems, complete the steps listed below. Identify each step
with the appropriate corresponding number. 1. Write the claim and the null and the
alternate hypotheses. 2. Identify the level of significance. 3. Draw a distribution to
represent it and identify the critical value(s). 4. Write the inequality that identifies the
rejection area(s). 5. Find the test statistic. 6. Make a decision about your test. 7.
Write a sentence describing your decision about the claim.
Transcribed Image Text:3.
Google conducted a study during the month of December 2019 that measured ways
in which people used their Web browsers. Part of the study involved counting the
number of files downloaded during the period of the study. The mean number of
files downloaded by a random sample of 51 male users was 130.6 with a standard
deviation of 22. The mean number of files downloaded by a random sample of 56
female users was 144.1 with a standard deviation of 20. Can you conclude that the
mean number of files downloaded differs between males and females? Use a 5%
level of significance.
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