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I need a VERY clear and easy to follow explanation 9. State the null hypothesis and the alternative hypothesis for the following. Then state whether

I need a VERY clear and easy to follow explanation

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9. State the null hypothesis and the alternative hypothesis for the following. Then state whether the distribution will have have one tail or two tails. If the answer is one tail, state the direction of the tail. a) The mean height of adult women is at most 65 inches. b) The percentage of people in the USA who buy their Christmas gifts online is at least 72%

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