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Setting null hypothesis

If the intent for research is to try to prove the null hypothesis is true without giving any indication that something else may be proved (alternate hypothesis), then, what is the proper format for stating the null hypothesis?

eg. The Chamber of Commerce estimates that "Richmond families, on the average, dine out at least 3 evenings per week." John plans to test this hypothesis using a random sample of 81 Richmond families. His null hypothesis is __________.

mean is greater than/equal to x, or mean is less than x

Which is the correct statement of the null hypothesis?

Solution Summary

Answers which one is the correct Null hypothesis and why.