Statistics - Unlocking The Power Of Data - Second Edition
Statistics - Unlocking The Power Of Data - Second Edition
2nd Edition
ISBN: 9781119444268
Author: Lock, Robin H.; Lock, Patti Frazer; Morgan, Kari Lock
Publisher: John Wiley & Sons
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Chapter 9.2, Problem

a.

To determine

Explain whether there is any serious concern about the conditions for fitting a linear model.

b.

To determine

Find the predicted equation and predict the mating activity of water striders in a group in which females spend 50% of the time in hiding.

c.

To determine

Write the hypotheses, t-statistic and p-value.

State the conclusion of the t-test of the slope.

d.

To determine

Write the hypotheses, F-statistic and p-value.

State the conclusion of the ANOVA.

e.

To determine

Compare the two p-values from parts (c) and (d).

f.

To determine

Interpret the coefficient of determination.

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You want to obtain a sample to estimate the proportion of a population that possess a particular genetic marker.  Based on previous evidence, you believe approximately p∗=11% of the population have the genetic marker.  You would like to be 90% confident that your estimate is within 0.5% of the true population proportion.  How large of a sample size is required?n =       (Wrong: 10,603) Do not round mid-calculation. However, you may use a critical value accurate to three decimal places.

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Statistics - Unlocking The Power Of Data - Second Edition

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