A sample of 30 items provided a sample mean of 28 and a sample standard deviation of 6 . Test the following hypotheses using ? = .05 . What is your conclusion? H0: ?2 ? 25 Ha: ?2 > 25
?2 = 41.76 < 45.7222; do not reject H0, there is not sufficient evidence to conclude that the population variance exceeds 25
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Answer the following statement true (T) or false (F)
Lucinda implements guidelines and provides information about what is expected for her employees. She also makes decisions without asking for suggestions from others. What type of leader is Lucinda?
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What is criterion validity?
What will be an ideal response?
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Indicate whether the statement is true or false