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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Asked Nov 24, 2019
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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
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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

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Expert Answer

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:

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H 7.6 Н. :и<7.6

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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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