What do we call the statement that determines if the null hypothesis is rejected

Question

What do we call the statement that determines if the null hypothesis is rejected? A) Decision rule B) Test statistic C) Alternate hypothesis D) Critical value If the alternate hypothesis states that mu does not equal 4,000, what is the rejection region for the hypothesis test? A) Both tails B) Lower or left tail Above 1.96 and below -1.96 B) Above 1.65 and below 1.65 C) Above 2.58 and below -2.58 D) Above 1.00 and below -1.00 If the 1% level of significance is used and the computed value of z is +6.00, what is our decision? A) Do not reject H_0 B) Reject H_0 C) Reject H_1 D) None of the above C) Upper or right tail D) Center What are the two rejection areas in using a two-tailed test and the 0.01 level of significance when n is large? A) For a two-tailed test at the 0.05 significance level, what is the rejection region when if large? A) Between plusminus 1.96 B) Between plusminus 1.65 C) Greater than +1.96 and less than -1.96 D) Greater than +1.65 and less than -1.65 E) None of the above In hypothesis testing, what is the level of significance? A) Risk of rejecting the null hypothesis when it is true B) Symbolized by the Greek letter "alpha" C) Value between 0 and 1 D) Selected before a decision rule can be formulated E) All of the above are true

Explanation / Answer

Solution:-

1) (A) Decision rule.

2) (A) Both tails.

3) (C) Above 2.58 and below - 2.58.

4) (B) Reject H0, becuase p va;ue for z = + 6 is almost 0, which is less than 0.01, so we have to reject the null hypothesis.

5) (C) Greater than + 1.96 and less than - 1.96.

6) (E) All of the above are true.

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