Mathematics, 28.01.2020 00:31 568389

Aproposed null hypothesis states that there is no difference between the mean weights of the population of two neighboring districts. the sample mean difference is 12 kilograms, and the standard deviation of the distribution of the difference between sample means is 9 kilograms. which statement is true?
a. the null hypothesis must be accepted if we choose the 68% confidence level.
b. the null hypothesis must be accepted if we choose the 95% confidence level.
c. the null hypothesis must be rejected if we choose the 99.7 % confidence level.
d. the null hypothesis must be rejected if we choose the 100% confidence level.
e. the null hypothesis must be rejected if we choose the 95% confidence level.

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Aproposed null hypothesis states that there is no difference between the mean weights of the populat...