A study compares students who use a website and students who do not use the website. In addition to asking the students in the samples about GPA, each student was also asked how many hours he or she spent studying each day. The two samples (141 students who were users of the website and 68 students who were not users of the website) were independently selected from students at a large, public university. Although the samples were not selected at random, they were selected to be representative of the two populations. A USE SALT For the sample of users of the website, the mean number of hours studied per day was 1.46 hours and the standard deviation was 0.83 hours. For the sample of students who do not use the website, the mean was 2.77 hours and the standard deviation was 0.99 hours. Do these sample data provide convincing evidence that the mean time spent studying for users of the website at this university is less than the mean time spent studying by students at the university who do not use the website? Use a significance level of 0.01. (Use Husers - Fnot users) Find the test statistic. (Round your answer to one decimal place.) %3D Find the df. (Round your answer down to the nearest whole number.) df= Find the P-value. (Round your answer three decimal places.) P-value = State your conclusion. O Fail to reject Ha. We do not have convincing evidence that the mean time spent studying for the website users at this university is less than the mean time spent studying by students at the university who do not use the website. O Fail to reject Hg. We have convincing evidence that the mean time spent studying for the website users at this university is less than the mean time spent studying by students at the university who do not use the website. O Reject Hg. We do not have convincing evidence that the mean time spent studying for the website users at this university is less than the mean time spent studying by students at the university who do not use the website. O Reject Hg- We have convincing evidence that the mean time spent studying for the website users at this university is less than the mean time spent studying by students at the university who do not use the website.

A study compares students who use a website and students who do not use the website. In addition to asking the students in the samples about GPA, each student was also asked how many hours he or she spent studying each day. The two samples (141 students who were users of the website and 68 students who were not users of the website) were independently selected from students at a large, public university. Although the samples were not selected at random, they were selected to be representative of the two populations. A USE SALT For the sample of users of the website, the mean number of hours studied per day was 1.46 hours and the standard deviation was 0.83 hours. For the sample of students who do not use the website, the mean was 2.77 hours and the standard deviation was 0.99 hours. Do these sample data provide convincing evidence that the mean time spent studying for users of the website at this university is less than the mean time spent studying by students at the university who do not use the website? Use a significance level of 0.01. (Use Husers - Fnot users) Find the test statistic. (Round your answer to one decimal place.) %3D Find the df. (Round your answer down to the nearest whole number.) df= Find the P-value. (Round your answer three decimal places.) P-value = State your conclusion. O Fail to reject Ha. We do not have convincing evidence that the mean time spent studying for the website users at this university is less than the mean time spent studying by students at the university who do not use the website. O Fail to reject Hg. We have convincing evidence that the mean time spent studying for the website users at this university is less than the mean time spent studying by students at the university who do not use the website. O Reject Hg. We do not have convincing evidence that the mean time spent studying for the website users at this university is less than the mean time spent studying by students at the university who do not use the website. O Reject Hg- We have convincing evidence that the mean time spent studying for the website users at this university is less than the mean time spent studying by students at the university who do not use the website.

Name: A study compares students who use a website and students who do not u
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Description: A study compares students who use a website and students who do not use the website. In addition to asking the students in the samples about GPA, each student was also asked how many hours he or she spent studying each day. The two samples (141 stud

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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