# 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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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 p...

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