ACHIEVE F/PRACT OF STAT IN LIFE-ACCESS
ACHIEVE F/PRACT OF STAT IN LIFE-ACCESS
4th Edition
ISBN: 9781319509286
Author: BALDI
Publisher: MAC HIGHER
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Chapter 28, Problem 28.30E

(a)

To determine

To make a scatterplot of width y against length and describe the relationship and also use a software to find whether this relationship is statistically significant.

(b)

To determine

To use a software to obtain a multiple regression model of width that includes both length and sex_B as explanatory variables and create a scatterplot and discuss the results shown in ANOVA table and individual t tests in the context of your scatterplot and check conditions for inference and explain does this analysis support the salesman’s assertion.

(c)

To determine

To contrast the conclusion you reached here and in previous exercise and explain why the conclusions are somewhat different.

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