Introduction To Statistics And Data Analysis
6th Edition
ISBN: 9781337793612
Author: PECK, Roxy.
Publisher: Cengage Learning,
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Chapter 13.4, Problem 43E
a.
To determine
Find the regression line for estimating clutch size based on snout–vent length.
b.
To determine
Find the estimated standard deviation of regression coefficient.
c.
To determine
Check whether there is sufficient evidence to conclude that the slope of the population line is positive.
d.
To determine
Estimate the 95% prediction interval for clutch size with a snow–vent length of 65.
e.
To determine
Predict he clutch size for a salamander with a snout-vent length of 105 using a 90% interval.
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1
7
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2
9
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3
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4
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2.50
5
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2.45
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*(no use EXCEL)
A paper investigated the driving behavior of teenagers by observing their vehicles as they left a high school parking lot and then again at a site approximately
1
2
mile from the school. Assume that it is reasonable to regard the teen drivers in this study as representative of the population of teen drivers.
Amount by Which Speed Limit Was Exceeded
MaleDriver
FemaleDriver
1.3
-0.1
1.3
0.4
0.9
1.1
2.1
0.7
0.7
1.1
1.3
1.2
3
0.1
1.3
0.9
0.6
0.5
2.1
0.5
(a) Use a .01 level of significance for any hypothesis tests. Data consistent with summary quantities appearing in the paper are given in the table. The measurements represent the difference between the observed vehicle speed and the posted speed limit (in miles per hour) for a sample of male teenage drivers and a sample of female teenage drivers. (Use μmales − μfemales.Round your test statistic to two decimal places. Round your degrees of freedom down to the nearest whole number. Round your p-value to…
Chapter 13 Solutions
Introduction To Statistics And Data Analysis
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