Conduct a z-test for a dataset where = 4.1, = 0.8, X = 3.7, n
Question:
Conduct a z-test for a dataset where μ = 4.1, σ = 0.8, X̅ = 3.7, n = 20.
a. What are the groups for this z-test?
b. What is the null hypothesis for this z-test?
c. What is the value of α?
d. Should the researcher conduct a one- or two-tailed test?
e. What is the alternative hypothesis?
f. What is the z-observed value?
g. What is(are) the z-critical value(s)?
h. Based on the critical and observed values, should the researcher reject or retain the null hypothesis?
i. What is the p-value for this example?
j. What is the Cohen’s d value for this example?
k. If the α value were dropped to .01, would the researcher reject or retain the null hypothesis?
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Related Book For
Statistics For The Social Sciences A General Linear Model Approach
ISBN: 9781107576971
1st Edition
Authors: Russell T. Warne
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