Question
In: Statistics and Probability
Majesty Video Production Inc. wants the mean length of its advertisements to be 25 seconds. Assume...
Majesty Video Production Inc. wants the mean length of its advertisements to be 25 seconds. Assume the distribution of ad length follows the normal distribution with a population standard deviation of 2 seconds. Suppose we select a sample of 16 ads produced by Majesty.
A.What can we say about the shape of the distribution of the sample mean time?
B What is the standard error of the mean time? (Round your answer to 2 decimal places.)
C.What percent of the sample means will be greater than 26.25 seconds? (Round your z values and final answers to 2 decimal places.) What percent of the sample means will be greater than 23.75 seconds? (Round your z values and final answers to 2 decimal places.)
D. What percent of the sample means will be greater than 23.75 but less than 26.25 seconds? (Round your z values and final answers to 2 decimal places.)
Solutions
orchestra answered 1 year agoRelated Solutions
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Majesty Video Production Inc. wants the mean length of its advertisements to be 24 seconds. Assume...
Majesty Video Production Inc. wants the mean length of its
advertisements to be 24 seconds. Assume the distribution of ad
length follows the normal distribution with a population standard
deviation of 2 seconds. Suppose we select a sample of 15 ads
produced by Majesty. a. What can we say about the shape of the
distribution of the sample mean time? b. What is the standard error
of the mean time? c. What percent of the sample means will be
greater...
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Majesty Video Production Inc. wants the mean length of its
advertisements to be 26 seconds. Assume the distribution of ad
length follows the normal distribution with a population standard
deviation of 2 seconds. Suppose we select a sample of 14 ads
produced by Majesty. What can we say about the shape of the
distribution of the sample mean time? What is the standard error of
the mean time? (Round your answer to 2 decimal places.) What
percent of the sample...
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Step 1: Stating what we are testing Step 2: Stating
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24
27
26
29
33
21
18
24
23
34
17
15
19
23
25
29
36
19
18
22
16
45
32
12
24
35
14
40
30
19
14...
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