PLEASE HELP ME ON QUESTION 2, very confused. c. The probability of making a type

Question

PLEASE HELP ME ON QUESTION 2, very confused.

c. The probability of making a type I error when d. The probability of making a type II error when e. The probability of making a type Il error when I. A test has power 0.85 when 10, True or false u = 7.5 is 0.10. a. The probability of rejecting Ho when = 10 is 0.85 =7.5 is 0 b. The probability of making a correct decision when c. The probability of making a correct decision when d. The probability that Ho is true when = 10 is 10 is 0.85 7.5 is 0.10 =l0 is 0.15 f. The probability that H0 is false when = 7.5 0.90 0.15 3. If the sample size remains the same, and the level . Options: increases, then the power will increase, decrease 2. A test has power 0.90 when = 7.5. a. The probability of rejecting Ho when = 7.5 is 4. If the level remains the same, and the sample size increases, then the Options b. The probability of making a type I error when u = 7.5 is 0. increase, decrease

Explanation / Answer

Answer to the question is as follows:

The power of any test of statistical significance is defined as the probability that it will reject a false null hypothesis. Statistical power is inversely related to beta or the probability of making a Type II error. In short, power = 1 –

Power of .90 when Mu = 7.5

Probability to make type II error when Mu = 7.5 is 1-Beta = 1-.90 = 1-.90 = .10.

e is correct

Therefore, b,c, and d are also wrong

f is also the not right interpretation

a. is correct. The probability of rejecting Ho when Mu = 7.5 is .90

a, e are correct

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