Null-alternative hypotheses to test research hypothesis

Assignment Help Basic Statistics

Reference no: EM13114890

A study reported in the journal of occupational and organizational psychology investigated the relationship of employment status to mental health. Each in a sample of 49 unemployed men was given a mental health exam using the General Health Questionnaire. The GHQ is a widely recognized measure of present mental health, with lower values indicating better mental health. The mean and standard deviation of the GHQ scores were x = 10.94 and s = 5.10 respectively.

a.) Specify the appropriate null and alternative hypotheses if we wish to test the research hypothesis that the mean GHQ score for all employed men exceeds 10.

b.) If we specify alpha = 0.05 what is the appropriate rejection region for this test?

c.) Conduct the test, state your conclusion clearly in the language of this exercise.

Reference no: EM13114890

Questions Cloud

What is the mass of sodium bromide : A mixture of NaCl and NaBr has a mass of 2.08g and is found to contain 0.78 of Na.What is the Mass of NaBr in the mixture.

Demonstrate that fidel castro is a world leader : demonstrate that Fidel Castro is a world leader. How does the personal traits theory apply in his case. Compare with another leader which you think is similar.

How many possible fragments can be presented : how many possible fragments can be presented via MHC class I and/or II from these specific examples and in general for all oligoglycosyceramides? Explain your answer.

Describe the challenges faced by human resource management : Describe the challenges faced by human resource management today, including issues such as globalization

Null-alternative hypotheses to test research hypothesis : Specify the appropriate null and alternative hypotheses if we wish to test the research hypothesis that the mean GHQ score for all employed men exceeds 10.

What precautions do you need to take with each of materials : You are a hazmat responder and walk into what appears to be a meth lab. There are flasks of iodine, White Gas fuel, Sodium Hydroxide, Nitric Acid, and a box of ephidrine.

What is huntingtons disease : What is Huntington's disease? How is it inherited? Why do you suppose that the longer the CAG repeat mutation is in the diseases gene, the more severe the disease and the earlier the onset of the disease?

Explain what role does business communication play : Explain What role does business communication play in your day-to-day work activities? How does it help you manage your daily activities?

Find probability that have mean cost between range : If 36 of these repair bills are randomly selected, find the probability that they have a mean cost between 271 dollars and 273 dollars.

User Account

All Pages