Question

Show all work and answer in complete sentences

A researcher wanted to examine the effectiveness of Vitamin C on the number of colds a year. The researcher obtained a sample of adults and asked to take Vitamin C daily. The average number of colds a year among adults is known to have the average of On the basis of this sample, can the researcher conclude. μ = 3 that Vitamin C has an effect on the number of colds a year? Conduct two-tailed teest with alpha = .05.

Colds
2
2
2
1
3
3
1
2

Step 1: State your Null and research hypotheses.
Step 2: What is the df?
Step 3: What are the cut-off points?
Step 4: What is the standard deviation?
Step 5: What is the estimated standard error?
Step 6: What is the t-value?
Step 7: State your conclusion thoroughly.

Answer 1

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