A researcher developed a training program to reduce the stress of childless men who marry women with adolescent children. A researcher found that the stress level of childless men who marry women with adolescent children is a normal distribution with a mean of μ = 85 and with a standard deviation of σ = 15. Use α = .05 and show every step of hypothesis test. a. A researcher selects one man and provides a training program during one month. After the training program, this man’s stress level is 65. Can you conclude that this training program is effective to reduce the stress of childless men? b. A researcher selects n=25 samples and provides them this training program during one month. After the training program, the average stress level of this sample is M = 65. Can you conclude that this training program is effective to reduce the stress level? Just show step 3& 4 c. How is hypothesis testing with sample of more than one person different from hypothesis testing with a single person?
A researcher developed a training program to reduce the stress of childless men who marry women with adolescent children. A researcher found that the stress level of childless men who marry women with adolescent children is a
a. A researcher selects one man and provides a training program during one month. After the training program, this man’s stress level is 65. Can you conclude that this training program is effective to reduce the stress of childless men?
b. A researcher selects n=25 samples and provides them this training program during one month. After the training program, the average stress level of this sample is M = 65. Can you conclude that this training program is effective to reduce the stress level? Just show step 3& 4
c. How is hypothesis testing with sample of more than one person different from hypothesis testing with a single person?
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