I would like the solutions for each part of the problem Arecent natonal survey found thet high school studemts watched an average (mean) of 7.6 movies per month with a populationstandard devlation of 0.9. The distribution of number ot movies watched per month follows the normal distribution. A random sampleof 39 college students revcaled thot the mean number of movies watched last month was 7.1 At the 0.05 signticance level, can wecondude thet college student watch fewer moviec o morth than high school studente?a State the null hypothesic and the olternate hypothesOH:4276. H ps76OH-7.6, H 76H p 7.6; M-76O He ys7.6 Hp 76b. State the declslon rule.OReject H if zx-1645O Pecn గ్య =* -.6430 Racd గ్వీ t = * -1.645S791-22494 oolesoof the test ctststic (Negative emournt should be Indicated by a minus sign. Round your answer to 2 decimatc. Compute theploces)C గింoo గు0 రిం గంt reంd గ.(co29 d jcuurp2 t e4 1345 usunok punca

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Description: I would like the solutions for each part of the problem Arecent natonal survey found thet high school studemts watched an average (mean) of 7.6 movies per month with a populationstandard devlation of 0.9. The distribution of number ot movies watched

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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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I would like the solutions for each part of the problem

Arecent natonal survey found thet high school studemts watched an average (mean) of 7.6 movies per month with a population
standard devlation of 0.9. The distribution of number ot movies watched per month follows the normal distribution. A random sample
of 39 college students revcaled thot the mean number of movies watched last month was 7.1 At the 0.05 signticance level, can we
condude thet college student watch fewer moviec o morth than high school studente?
a State the null hypothesic and the olternate hypothes
OH:4276. H ps76
OH-7.6, H 76
H p 7.6; M-76
O He ys7.6 Hp 76
b. State the declslon rule.
OReject H if zx-1645
O Pecn గ్య =* -.643
0 Racd గ్వీ t = * -1.645
S791-22494 ooleso
of the test ctststic (Negative emournt should be Indicated by a minus sign. Round your answer to 2 decimat
c. Compute the
ploces)
C గింoo గు
0 రిం గంt reంd గ.
(co29 d jcuurp2 t e4 1345 usunok punca

Expert Solution

Step 1

Given:

The provided sample mean is = 7.1 and the known population standard deviation is σ = 0.9, and the sample size is n = 39.

Step 2

a)The following null and alternative hypotheses need to be tested:

Step 3

This corresponds to a one-tailed test as alternate hypothesis is greater than direction. For which a z-test for one mean, with known population standard deviation and n>30 will be used.

Decision rule:

Reject H₀, if z<-1.645

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