Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

More time on the Internet: A researcher polled sample of 1049 adults in the year 2010, asking them how many hours per week they spent

image text in transcribed
image text in transcribed

More time on the Internet: A researcher polled sample of 1049 adults in the year 2010, asking them how many hours per week they spent on the Internet.The sample mean was 9.89 with a standard deviation of 13.51 A second sample of 1019 adults was taken in the year 2012 For this sample, the mean was 10.57with a standard deviation of 14.62 Assume these are simple random samples from populations of adults. Can you conclude that the mean number of hours perweek spent on the Internet increased between 2010 and 2012 Let H1 denote the mean number of hours spent on the Internet in 2010 Use the a= 0.01 level andthe critical value method with the table.Part 1 of 6State the appropriate null and alternate hypotheses.HHH?2?0HH?

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Precalculus

Authors: Braja M Das, David Cohen, Theodore B Lee, David Sklar

7th Edition

1133386482, 9781133386483

More Books

Students also viewed these Mathematics questions

Question

=+b) Would the consultants information be useful? Explain.

Answered: 1 week ago