23. Which of the following best describes the entry designated by (4) in the tab

Question

23. Which of the following best describes the entry designated by (4) in the table? True Situation Ho is truc Ho is false Decision o not reject ject Ho The entry refers to an error of Type I1. O The probability of the entry is called power The entry is a correct decision, and the probability of the entry is called power O The probability of the entry is called power, and the entry refers to an error of Type II. O The entry is a correct decision 24. The power for a one-sided test of the null hypothesis = 10 versus the alternative -8 is equal to 0.8. Assume the sample size is 25 and = 4 with the power equal to 80%, the decision rule would be to reject the null hypothesis if the observed sample mean is less than 9.2 O 7.33 8.67 10.67 A test was established of H0: = 24 against the alternative Hai 24 using a level of significance of a = 0.05. The variable in question is known to be Normally distributed with = 3, Hence, the null hypoth would be rejected if a sample of size 16 has a mean x 22.53, or > 25.47. Suppose the distribution of the variable shifts to a new mean, = 24.8, but the standard deviation does not change, what is the power of this test? O 0.188 0.812 0.95 0.858 0.142

Explanation / Answer

Q 23. If we reject H0, when it is false. The entry is a correct decision

Fifth option is correct

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