**Watching TV:** In 2012, the General Social Survey asked a sample of 1318 people how much time they spent watching TV each day. The mean number of hours was 2.95 with a standard deviation of 2.63. A sociologist claims that people watch a mean of 3 hours of TV per day. Do the data provide sufficient evidence to conclude that the mean hours of TV watched per day differs from the claim? Use the α = 0.01 level of significance and the critical value method.**Part: 0 / 5****Part 1 of 5**State the appropriate null and alternate hypotheses.H₀: [Box for input]H₁: [Box for input]This hypothesis test is a (Choose one) [Dropdown menu for type of test] test.**Diagram Explanation:**The diagram provides options for setting hypotheses:- Symbols for less than, greater than, and not equal are shown.- Two icons below the symbols: one marked with 'μ' (mean) and another with 'x' (unknown or to be input).This task is designed for students to determine and input the null and alternative hypotheses based on the data and options given.

Given data:Sample size (n ) =1318Sample mean ( )= 2.95Standard deviation ( s )= 2.63Mean () = 3…

Answered: Watching TV: In 2012, the General…

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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A newspaper article reports that the mean cost for preventative dental care per year is $175 with a standard deviation of $35 (assume that this is the population standard deviation). You want to test whether the mean cost for preventative dental care in your company is different from what was reported in the article. You take a random sample of 250 employees and find the mean cost is $171. Does this signficantly differ from what was reported in the article? Run the appropriate test at α=0.05. Give each of the following to receive full credit: 1) the appropriate null and alternative hypotheses; 2) the appropriate test; 3) the decision rule; 4) the calculation of the test statistic; and 5) your conclusion including a comparison to alpha or the critical value. You MUST show your work to receive full credit. Partial credit is available.
According to one study, the average hours of sleep on a weeknight for men was 6.9 hours with a standard deviation of 1.5 hours. These hours are normally distributed. c. Find the proportion of men who sleep between 6-8 hours per night. d. Find the number of hours that represents the 90th percentile.
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