- 3 We Have A Left Tail One Sample Test For The Population Mean Assume The Null Hypothesis Is True Use 4 For The Signif 1 (54.24 KiB) Viewed 26 times
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3. We have a left tail one sample test for the population mean. Assume the null hypothesis is true Use 4% for the significance level. The sample size is 27, the sample mean is 32.8, the sample standard deviation is 4.1, and the null mean is 35. The test result is (a) a correct decision (b) a Type I error (c) a Type Il error 4. The test statistic value for the previous problem is (fill in the blank). 5. We have a right tail one sample test for the population mean. Assume the null hypothesis is false. Use 3% for the significance level. The sample size is 82, the sample mean is 67.3, the sample standard deviation is 7.9, and the null mean is 65. The test result is (a) A correct decision (b) a Type I error (c) a Type Il error 6. Listed below are several possible test statistics. Which one is the largest test statistic that is NOT in the rejection region for the previous problem? (a) 1.78 (b) 1.88 (c) 1.98 (d) 2.08 (e) none are in the rejection region