A random sample of 1,562 undergraduates enrolled in management
ethics courses was asked to respond on a scale from 1 (strongly
disagree) to 7 (strongly agree) to this proposition: Senior
corporate executives are interested in social justice. The sample
mean response was 4.27, and the sample standard deviation was 1.32.
Test at the 1% level, against a two-sided alternative, the null
hypothesis that the population mean is 4.
State the null and the alternative hypothesis and comment
whether its a one tail or two tail test? If one tail then right or
left tail test? (write your answer as right tail test/ left tail
test/ two tail test)
Identify the critical value. Ans in two decimal places.
What is the calculated value? Ans in two decimal places.
Write the decision rule and identify whether the condition
holds. (write answer as condition holds/ condition does not
hold).
Give final decision. (write answer as reject null/ do not reject
null)