A clinical trial was conducted to test the effectiveness of a drug for treating insomnia. After treatment, the Il subjects had the following mean wake times: 38, 51, 19, 21, 22, 30, 15, 61, 75, 31, 28. Assume that the 11 sample values appear to be from a normally distributed population and construct a 95% confidence interval estimate of the mean wake time for a population with drug treatments,

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step-by-step explanation:

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part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

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part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation:

853.3

step-by-step explanation: