Multiple Choice
It has been reported that the average time to download the home page from a government website was 0.9 seconds.Suppose that the download times were normally distributed with a standard deviation of 0.3 seconds.If random samples of 36 download times are selected 80% of the sample means will be between what two values symmetrically distributed around the population mean.
A) [.648 1.152]
B) [.836 .964]
C) [.514 1.280]
D) [.858 .942]
Correct Answer:
Verified
Correct Answer:
Verified
Q30: In order to select a stratified random
Q90: The College Student Journal (December 1992)investigated
Q92: _ says that if the sample size
Q93: Whenever the population has a normal distribution,the
Q94: For non-normal populations,as the sample size (n)_,the
Q96: In a manufacturing process a machine produces
Q97: Consider a sampling distribution formed based
Q98: The population of lengths of aluminum-coated steel
Q99: In the upcoming governor's election,the most recent
Q100: The mean of the sampling distribution of