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Question: use the onestandarddeviation chi squared 2test and the onestandarddeviation chi...

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Use the​ one-standard-deviation chi squared χ2-test and the​ one-standard-deviation

chi squared χ2-interval procedure to conduct the required hypothesis test and obtain the specified confidence interval for a sample of size n=11 with a standard deviation of s=55.

a. Upper H 0H0​:

sigma=66​,

Upper H Subscript aHa​: sigmaσ less than< 6​,

alphα=0.05

b. 90 confidence interval

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