Little League product testing, part 2. Using the same data provided in Exercise 48, answer the following
Question:
Little League product testing, part 2.
Using the same data provided in Exercise 48, answer the following questions.
a) Find the 95% prediction interval for the effectiveness of the video on a pitcher with an initial ability of 33 strikes.
b) Do you think predictions made by this regression will be very accurate? Explain.
Regression Statistics Multiple R 0.8243 R Square 0.6795 Adjusted R Square 0.6635 Standard Error 1.9681 Observations 22 Variable Coefficient SE(Coeff) t-ratio P-value Intercept 4.9004 1.7054 2.8735 0.0094 Total Employment 0.0370 0.0057 6.5115 0.0000 
a) State what you want to know, identify the variables, and give the appropriate hypotheses.
b) Check the assumptions and conditions.
c) If the conditions are met, complete the analysis.
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Related Book For 
Business Statistics
ISBN: 9781292269313
4th Global Edition
Authors: Norean Sharpe, Richard De Veaux, Paul Velleman
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