What is the research hypothesis

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A researcher gives a group of participants (n = 15) a memory technique to use. He finds that they remember on average twenty words (sample standard deviation = 3) while the average number of words remembered in the population is 15.

a. What is the null hypothesis?

b. What is the research hypothesis?

c. Is this a one or two tailed hypothesis?

d. Which test should you use? Why?

e. Calculate the appropriate statistical test.

f. What is the critical value for α = .05?

g. What do you conclude?

Reference no: EM131826096

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