The following partial JMP regression output for the Fresh detergent data relates to predicting demand for future sales periods in which the price difference will be .10. SE Fit = .165360573, s = .628152. Predicted Demand Lower 95% Mean Demand Upper 95% Mean Demand 31 8.181072245

The following partial JMP regression output for the Fresh detergent data relates to predicting demand for future sales periods in which the price difference will be .10. SE Fit = .165360573, s = .628152. Predicted Demand Lower 95% Mean Demand Upper 95% Mean Demand 31 8.181072245

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.1: Measures Of Center

Problem 9PPS

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Question

	Predicted Demand	Lower 95% Mean Demand	Upper 95% Mean Demand
31	8.181072245	7.842346262	8.519798229
	StdErr Indiv Demand	Lower 95% Indiv Demand	Upper 95% Mean Demand
	0.649552965	6.850522511	9.511621980

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(a) Report a point estimate of and a 95 percent confidence interval for the mean demand for Fresh in all sales periods when the price difference is .10. (Round your CI answers to 3 decimal places and other answer to 4 decimal places.)

(b) Report a point prediction of and a 95 percent prediction interval for the actual demand for Fresh in an individual sales period when the price difference is .10. (Round your PI answers to 3 decimal places and other answer to 4 decimal places.)

(c) StdErr Indiv Demand on the JMP output equals s1+distance value ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾√s1+distance value . Using this information, find 99 percent confidence and prediction intervals for mean and individual demands when x = .10. (Round your answers to 4 decimal places.)

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