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Title: Consider the following regression analysis for predicting sales per week from intelligence and ... Post by: wasala18 on Feb 19, 2023 Consider the following regression analysis for predicting sales per week from intelligence and extroversion scores: The regression equation is Sales/Week = 994 + 8.22 Intelligence + 49.7 Extroversion Term Coef SE Coef T-Value P-Value Constant 994 788 1.26 0.224 Intelligence 8.22 7.01 1.17 0.257 Extroversion 49.7 19.6 2.53 0.021 S R-sq R-sq(adj) R-sq(pred) 332.069 35.26% 27.65% 10.66% Analysis of Variance Source DF Adj SS Adj MS F-Value P-Value Regression 2 1021166 510583 4.63 0.025 Error 17 1874584 110270 Total 19 2895750 Predicted Values for New Observations New Obs Fit SE Fit 90% CI 90% PI 1 2885.62 167.445 (2594.34, 3176.91) (2238.67, 3532.58) 2 3379.99 176.933 (3072.19, 3687.78) (2725.43, 4034.54) 3 2785.05 100.991 (2609.35, 2960.72) (2181.25, 3388.83) Values of Predictors for New Observations New Obs Intelligence Extroversion 1 85 24 2 127 27 3 103 19 What is a 90% confidence interval for the average sales per week for all people with an intelligence score of 103 and an extroversion score of 19? ▸ (2594.34, 3176.91) ▸ (2609.35, 2960.72) ▸ (2181.25, 3388.83) ▸ (3072.19, 3687.78) Title: Re: Consider the following regression analysis for predicting sales per week from intelligence and ... Post by: Ignesias on Feb 19, 2023 Content hidden
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