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Author Question: The p-value a. is the same as the Z statistic b. measures the number of standard deviations from ... (Read 122 times)

abarnes

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on: Jun 24, 2018
The p-value
 a. is the same as the Z statistic
  b. measures the number of standard deviations from the mean
  c. is a distance
  d. is a probability

Question 2

In order to estimate the average electric usage per month, a sample of 196 houses was selected, and their electric usage determined.
 a. Assume a population standard deviation of 350-kilowatt hours. Determine the standard error of the mean.
  b. With a 0.95 probability, determine the margin of error.
  c. If the sample mean is 2,000 KWH, what is the 95 confidence interval estimate of the population mean?


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cpetit11

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Reply #1 on: Jun 24, 2018
Answer to Question 1

D

Answer to Question 2

a. 25
b. 49
c. 1951 to 2049


abarnes

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Reply 2 on: Jun 24, 2018
Great answer, keep it coming :)

recede

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Reply 3 on: Yesterday
Wow, this really help

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