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Do males and females differ in the amounts they spend on Valentine's Day? The average expenditure in a sample of 40 male consumers was $135.67 and the average expenditure in a sample survey of 30 female consumers was $68.64. Based on past surveys, the standard deviation for male consumers is assumed to be $35 and the standard deviation for female consumers is assumed to be $20.
Q. What is the test statistic for the desired hypothesis test?
Q. What is the appropriate conclusion at a 1% level of significance?
Q. If you instead wished to test whether the average Valentine's Day expenditure for males was more than $20 higher than that for females, how would that change your analysis?
abc manufacturing has 8 machines that perform a particular task. breakdowns occur frequently for this machine. past
In your workplace? Elsewhere in the business sector? In your education (during your UOPX degree program)? In politics? Explain your response.
Develop a scatter diagram with price as the independent variable and what does the scatter diagram developed in part (a) indicate about the relationship between the two variables?
How do we decide if the homogeneity of variance assumption is significantly violated?
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