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A sample of 500 respondents was selected in a large metropolitan area to determine various information concerning consumer behavior, Among the questions asked was "Do you enjoy shopping for clothing?" Of 240 males, 136 answered yes. Of 260 females, 224 answered yes.
An analysis of variances produces SSbetween treatments = 20 with df between treatments = 2, and SS within treatments = 30 with df within treatments = 15. For this analysis, what is the F-ratio?
How would you interpret the findings of a correlation study that reported a linear correlation coefficient of +0.3?
Draw a scatter diagram and consider the correlation for the provided data. Do larger universities tend to have more property crime.
For one consumer product the mean dollar sales per retail outlet last year in a sample of 15 was $3,425 with a standard deviation of $500. For a second product the mean dollar sales per outlet in a sample of 12 stores was $3,250 with a standard de..
Assume the standard deviation is $160 and that the amount spent is normally distributed. What is the probability that the amount spent on a randomly selected child is more than $700?
x1 = 100 and x2 = 127 successes were observed. What is the best point estimator for the difference ( p1-p2) in the two binomial proportions?
Tthe hypothesis test used (normal curve, single sample t-test, dependent samples t-test, independent samples t-test, ANOVA). For situations 1, 3, 4, and 5, also state whether the test is unilateral or bilateral.
At 0.05 level of significance, is there evidence of noteworthy difference in variation in sales among different aisle locations?
Describe a business situation that you have had or might face that will benefit from the use of confidence intervals?
Defects will go into product assembly and will have to be replaced later at a cost of $10 each when they are detected in finnal product testing.
Nut problem: Manager claims 336g and a population standard deviation of 11g. We sample 64 bags and find
Assuming the population of Math SAT scores for seniors in the district is approximately normally distributed, a 90% confidence interval for the mean Math SAT score μ for the population of seniors computed from these data is?
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