Question: Given the following values: = 9.0, M = 10.4, n = 42, = 5, conduct a onesample z test at a .05 level of significance.

Given the following values: = 9.0, M = 10.4, n = 42, = 5, conduct a onesample z test at a .05 level of significance. For a one-tailed test, upper-tail critical, what is the decision? A) to reject the null hypothesis B) to retain the null hypothesis C) There is not enough information since the sample size is not given

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