full credit far nos-mutiple chaice probienss.Follow the direction in the Witten

Question

full credit far nos-mutiple chaice probienss.Follow the direction in the Witten Assignment Guides Use the folowing information to anewer questions (1)-14 Feature movie lengths On hours) were measured for all movies shown In the past ear lh the U.S. The mean length of all feature length movies thow was 1.80 hours with a standard deviatian of015 heurs. Suppote the the feature length movies was found to be 1.72 hours wth a standard devilatien ef alas houn 1. in this esample, the numerical valuss of 1.80 hours and 0.15 hours are a estimates b. statistks 2. Suppose wo were to histogram would be a diap ty of which of the following? histogram of the feature Ingh mavi, tines of aa movie. akn th, past year. Th. a pond atian distriburion b samalica eistribution of means c distribution of a ample d. Normal 3 Suppose the precess of taking random samples of size 20 is repeated 200 tines and a istogram of the 200 samgle means is created. The histogram would be a Eisplay of which of the following c. distribution of a sample populaton datributos b. sameling distrilbution of means 4 If we create a sampling dicraution of sample means what would be the mean and standard deviation of chet distrbution given the sample sise of 20? Show your work

Explanation / Answer

1. The numberical values of 1.8 and 0.15 are estimates
Option (A)

2.
Population Distribution

3.
option B - Sampling distribution of means

4.
mean = 1.8
std.dev. = 0.15/sqrt(20) = 0.0335

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