Thursday

October 30, 2014

October 30, 2014

Posted by **judy** on Wednesday, March 31, 2010 at 1:24pm.

of the normal distribution is 72 kg. We randomly sample 18 students and find an average of 69 kg and a

standard deviation of 4kg.

A. The standard error of óx is 0.9428

B. A t-statistic can be calculated and it is equal to −3.18

C. The degrees of freedom for the t-distribution will be 17

The correct statement(s) is(are)

(1) Only A

(2) All three statements are correct.

(3) B and C

(4) A and B

(5) A and C

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