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Identify the regression equation and make the prediction. Show your procedure, or explain how you reached your answer.
Costs of Television: Find the best predicted quality score of a Hitachi television with a price of $1900. Is the predicted quality score close to the actual quality score of 56?
Price 2300 1800 2500 2700 2000 1700 1500 2700
Quality 74 73 70 66 63 62 52 68
Regression equation:
Predicted value:
At the 5% significance level, can the station conclude that the mean age of its listeners is not 25 yrs. Formulate and test the appropriate hypotheses. Use the critical value approach.
Using the z table in Table E of Appendix C, determine the critical value for the hightailed test with a = 0.035.
Use the trend equation to calculate the points for 2003 and 2005. Plot them on the graph and draw the regression line.
Determine the control limits for the mean and the range. Plot the control limits for the mean outside diameter and the range.
Pilot sample of n = 50 tires illustrated sample standard deviation equal to 4,000 miles. Based on this information, required sample size is?
Correlation between the two variables - Evaluate the value of the correlation coefficient.
Finding Normal probabilities using standard normal table or Excel built in functions
A business owner decides to use a binomial distribution to solve one of his problems.
What is the p-value associated with the above sample result?
Which option produces the smallest risk of a Type I error?
Please use a combination of content and supportive examples.
As a manager of an organization, what statistics would you use and why if you wanted to estimate your annual employee turnover? Be sure to specifically identify the statistical formulas and what additional data you would need to determine your est..
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