A small dataset consists of the following values, which come from a population with = 7
Question:
A small dataset consists of the following values, which come from a population with μ = 7 and σ = 3.5. Conduct a z-test on these data to answer the questions below.
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. Is a one-tailed test or a two-tailed test more appropriate for this situation?
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 raised to .08, would the researcher reject or retain the null hypothesis?
l. If the α value were raised to .10, would the researcher reject or retain the null hypothesis?
m. If α were .05 and the sample size were increased to 125, would the researcher reject or retain the null hypothesis?
n. If α were .05 and the sample size were increased to 11,000, would the researcher reject or retain the null hypothesis?
Step by Step Answer:
Statistics For The Social Sciences A General Linear Model Approach
ISBN: 9781107576971
1st Edition
Authors: Russell T. Warne