I haave not had these answered yet - submitted yesterday

Describe what a type I and type II error would be for each of the following null hypotheses:

: There is no complete treatment for this disease

If you are constructing a 95% confidence interval using the information: n = 30, barx = 34.5, s = 3.2 and E = 0.65. What is the middle value of the interval?

Write a correct null and alternative hypothesis for testing the claim that the mean life of a battery for a cell phone is at least 95 hours

A 95% confidence interval estimate for a population mean was computed to be (54.5 to 68.6). Determine the mean of the sample, which was used to determine the interval estimate

Write a correct alternative hypothesis that tests the claim that the mean distance a student commutes to campus is no less than 8.2 miles"

- Sent to Statistics And Probability Expert Tutor on 5/3/2010 at 7:39pm

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