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The administration at a university is interested in studying if any relationship exists between satisfaction at the school and whether the student is a major in the College of Humanities and Social Sciences (HSS major) or has a major in the College of Business (Business major). The school randomly surveys 10 seniors who are HSS students and 10 seniors who are Business students and asks them to rate how satisfied they are at the school on a scale of 1-10, where 10 is extremely satisfied and 1 is extremely dissatisfied. Here are the data:
HSS Major: 7 6 10 4 8 9 6 8 7 10
Business Major: 4 7 4 6 8 7 9 5 8 7
The HSS majors have a mean of 7.5 and a variance of 3.6, whereas the Business majors have a mean of 6.5 and a variance of 2.9. Are the differences found between the HSS majors and Business majors statistically significant?
It was suggested that five is the minimum number of data points for the least likely cate gory in constructing histograms. In many cases, however, we must estimate probabilities that are extremely small or for which relatively few data are availab..
1. Develop the correlation matrix showing the correlation between all possible pairs of variables. Test statistically to determine which independent variables are significantly correlated with the dependent variable, book sales. Use a significance..
It is known that the average yearly consumption of soft drinks by college students nationwide is 50 gallons (µ = 50) with a standard deviation of 3.5 gallons (σ = 3.5).
compute a 99 confidence interval for the population mean based on the sample 52 50 51 54 55 52 and 53. change the
Annual family dental expenses for the families of a random sample of ten employees of a company are given below. You can assume the family dental expenses for the employees of the company are normally distributed.
according to a website about salaries the national average salary as of october 2003 for a human resources clerk was
The target capital structure for QM Industries is 45% ordinary? shares, 9% preference? shares, and 46% debt. If the cost of ordinary equity for the firm.
How much does average foot length increase for each 1-inch increase in height?- Predict the difference in the foot lengths of men whose heights differ by 10 inches.
1. In 200 words or more, briefly discuss Lewin change management model and Kotter's eight-step change model. Compare and contrast the two models. Which do you believe is more effective? Why? Please cite all resources according to APA standards.
Determine and interpret the p-value for the test; then construct and interpret the 95% confidence interval for the difference between the population means.
The F-test cannot be used to answer whether or not there is a significant difference between the means.
the freshness and overall quality of milk depend upon the type of packaging used. the manager of a dairy company is
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