Statistics, Binder Ready Version: Unlocking the Power of Data
2nd Edition
ISBN: 9781119163664
Author: Robin H. Lock, Patti Frazer Lock, Kari Lock Morgan, Eric F. Lock, Dennis F. Lock
Publisher: WILEY
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Question
Chapter 4.4, Problem 154E
a.
To determine
Check whether about how many of the 50 p-values one would expect to yield significant results at 5% level of significant results.
b.
To determine
Find how many of the 50 p-values will be actually significant at 5% level of significance.
c.
To determine
Explain whether it would be appropriate to report the p-value 0.0001, which yields highly significant evidence that mate choice improves offspring fitness.
d.
To determine
Explain whether the two p-values of 1 yield highly significant results that preventing mate choice improves offspring fitness.
e.
To determine
Explain whether it is possible to get contradictory results using the problem of multiple testing.
f.
To determine
Explain why the replication of studies is an important part of science.
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Students have asked these similar questions
(c) Because logistic regression predicts probabilities of outcomes, observations used to build a logistic regression model need not be independent.
A. false: all observations must be independent
B. true
C. false: only observations with the same outcome need to be independent
I ANSWERED: A. false: all observations must be independent.
(This was marked wrong but I have no idea why. Isn't this a basic assumption of logistic regression)
Business discuss
Spam filters are built on principles similar to those used in logistic regression. We fit a probability that each message is spam or not spam. We have several variables for each email. Here are a few: to_multiple=1 if there are multiple recipients, winner=1 if the word 'winner' appears in the subject line, format=1 if the email is poorly formatted, re_subj=1 if "re" appears in the subject line. A logistic model was fit to a dataset with the following output:
Estimate
SE
Z
Pr(>|Z|)
(Intercept)
-0.8161
0.086
-9.4895
0
to_multiple
-2.5651
0.3052
-8.4047
0
winner
1.5801
0.3156
5.0067
0
format
-0.1528
0.1136
-1.3451
0.1786
re_subj
-2.8401
0.363
-7.824
0
(a) Write down the model using the coefficients from the model fit.log_odds(spam) = -0.8161 + -2.5651 + to_multiple + 1.5801 winner + -0.1528 format + -2.8401 re_subj(b) Suppose we have an observation where to_multiple=0, winner=1, format=0, and re_subj=0. What is the predicted probability that this message is spam?…
Chapter 4 Solutions
Statistics, Binder Ready Version: Unlocking the Power of Data
Ch. 4.1 - Prob. 1ECh. 4.1 - Prob. 2ECh. 4.1 - Prob. 3ECh. 4.1 - In Exercises 4.1 to 4.4, a situation is described...Ch. 4.1 - Prob. 5ECh. 4.1 - Prob. 6ECh. 4.1 - Prob. 7ECh. 4.1 - Prob. 8ECh. 4.1 - In Exercises 4.9 to 4.13, a situation is described...Ch. 4.1 - Prob. 10E
Ch. 4.1 - In Exercises 4.9 to 4.13, a situation is described...Ch. 4.1 - Prob. 12ECh. 4.1 - Prob. 13ECh. 4.1 - In Exercises 4.14 and 4.15, determine whether the...Ch. 4.1 - In Exercises 4.14 and 4.15, determine whether the...Ch. 4.1 - Pesticides and ADHD Are children with higher...Ch. 4.1 - Beer and Mosquitoes Does consuming beer attract...Ch. 4.1 - Prob. 18ECh. 4.1 - Prob. 19ECh. 4.1 - Prob. 20ECh. 4.1 - Prob. 21ECh. 4.1 - Prob. 22ECh. 4.1 - Prob. 23ECh. 4.1 - Prob. 24ECh. 4.1 - Prob. 25ECh. 4.1 - Prob. 26ECh. 4.1 - Prob. 27ECh. 4.1 - Prob. 28ECh. 4.1 - Prob. 29ECh. 4.1 - Prob. 30ECh. 4.1 - Prob. 31ECh. 4.1 - Prob. 32ECh. 4.1 - Prob. 33ECh. 4.1 - Prob. 34ECh. 4.1 - Prob. 35ECh. 4.1 - Prob. 36ECh. 4.1 - Prob. 37ECh. 4.1 - Prob. 38ECh. 4.1 - Prob. 39ECh. 4.2 - Prob. 40ECh. 4.2 - Prob. 41ECh. 4.2 - Prob. 42ECh. 4.2 - Prob. 43ECh. 4.2 - Prob. 44ECh. 4.2 - Prob. 45ECh. 4.2 - Prob. 46ECh. 4.2 - Prob. 47ECh. 4.2 - Prob. 48ECh. 4.2 - Prob. 49ECh. 4.2 - Prob. 50ECh. 4.2 - Prob. 51ECh. 4.2 - Prob. 52ECh. 4.2 - Prob. 53ECh. 4.2 - Prob. 54ECh. 4.2 - Exercises 4.55 to 4.58 also refer to Figure 4.16,...Ch. 4.2 - Prob. 56ECh. 4.2 - Prob. 57ECh. 4.2 - Prob. 58ECh. 4.2 - Prob. 59ECh. 4.2 - Prob. 60ECh. 4.2 - Exercises 4.59 to 4.64 give null and alternative...Ch. 4.2 - Prob. 62ECh. 4.2 - Prob. 63ECh. 4.2 - Prob. 64ECh. 4.2 - Finger Tapping and Caffeine The effects of...Ch. 4.2 - Prob. 66ECh. 4.2 - Prob. 67ECh. 4.2 - Prob. 68ECh. 4.2 - Prob. 69ECh. 4.2 - Prob. 70ECh. 4.2 - Prob. 71ECh. 4.2 - Prob. 72ECh. 4.2 - Prob. 73ECh. 4.2 - Prob. 74ECh. 4.2 - Are Antimicrobial Ingredients Having the Opposite...Ch. 4.2 - Prob. 76ECh. 4.2 - Definition of a P-value Using the definition of a...Ch. 4.2 - Rolling Dice You roll a die 60 times and record...Ch. 4.2 - Prob. 79ECh. 4.3 - Prob. 80ECh. 4.3 - Prob. 81ECh. 4.3 - Prob. 82ECh. 4.3 - Prob. 83ECh. 4.3 - Prob. 84ECh. 4.3 - Prob. 85ECh. 4.3 - Prob. 86ECh. 4.3 - Prob. 87ECh. 4.3 - Prob. 88ECh. 4.3 - Prob. 89ECh. 4.3 - Prob. 90ECh. 4.3 - Prob. 91ECh. 4.3 - Prob. 92ECh. 4.3 - Prob. 93ECh. 4.3 - Prob. 94ECh. 4.3 - Prob. 95ECh. 4.3 - Prob. 96ECh. 4.3 - Prob. 97ECh. 4.3 - Prob. 98ECh. 4.3 - Prob. 99ECh. 4.3 - Exercise 1.21 on page 15 introduces a study...Ch. 4.3 - Prob. 101ECh. 4.3 - Prob. 102ECh. 4.3 - Prob. 104ECh. 4.3 - Prob. 105ECh. 4.3 - Prob. 106ECh. 4.3 - Prob. 107ECh. 4.3 - Beer and Mosquitoes Does consuming beer attract...Ch. 4.3 - Prob. 109ECh. 4.3 - Prob. 110ECh. 4.3 - Prob. 111ECh. 4.3 - Prob. 112ECh. 4.3 - Prob. 113ECh. 4.3 - Prob. 114ECh. 4.3 - Prob. 115ECh. 4.3 - Prob. 116ECh. 4.3 - Prob. 117ECh. 4.3 - Prob. 118ECh. 4.4 - Prob. 119ECh. 4.4 - Prob. 120ECh. 4.4 - Prob. 121ECh. 4.4 - Prob. 122ECh. 4.4 - Prob. 123ECh. 4.4 - Prob. 124ECh. 4.4 - Prob. 125ECh. 4.4 - Prob. 126ECh. 4.4 - Prob. 127ECh. 4.4 - Prob. 128ECh. 4.4 - Prob. 129ECh. 4.4 - Prob. 130ECh. 4.4 - Prob. 131ECh. 4.4 - Prob. 132ECh. 4.4 - Prob. 133ECh. 4.4 - Prob. 134ECh. 4.4 - Prob. 135ECh. 4.4 - Prob. 136ECh. 4.4 - Prob. 137ECh. 4.4 - Prob. 138ECh. 4.4 - Prob. 139ECh. 4.4 - Prob. 140ECh. 4.4 - Prob. 141ECh. 4.4 - Prob. 142ECh. 4.4 - Prob. 143ECh. 4.4 - Prob. 144ECh. 4.4 - Prob. 145ECh. 4.4 - Prob. 146ECh. 4.4 - Prob. 147ECh. 4.4 - Prob. 148ECh. 4.4 - Eating Breakfast Cereal and Conceiving Boys...Ch. 4.4 - Prob. 150ECh. 4.4 - Prob. 151ECh. 4.4 - Prob. 152ECh. 4.4 - Prob. 153ECh. 4.4 - Prob. 154ECh. 4.5 - Prob. 155ECh. 4.5 - Prob. 156ECh. 4.5 - Prob. 157ECh. 4.5 - Prob. 158ECh. 4.5 - Prob. 159ECh. 4.5 - Prob. 160ECh. 4.5 - Prob. 161ECh. 4.5 - Prob. 162ECh. 4.5 - Prob. 163ECh. 4.5 - Prob. 164ECh. 4.5 - Prob. 165ECh. 4.5 - Prob. 166ECh. 4.5 - Prob. 167ECh. 4.5 - Testing for a Gender Difference in Compassionate...Ch. 4.5 - Prob. 169ECh. 4.5 - Prob. 170ECh. 4.5 - Prob. 171ECh. 4.5 - Prob. 172ECh. 4.5 - Prob. 173ECh. 4.5 - Prob. 174ECh. 4.5 - Prob. 175ECh. 4.5 - Effect of Sleep and Caffeine on Memory Exercise...Ch. 4.5 - Prob. 177ECh. 4.5 - Prob. 178ECh. 4.5 - Prob. 179ECh. 4.5 - Prob. 180ECh. 4.5 - Prob. 181ECh. 4.5 - Prob. 182ECh. 4.5 - Prob. 183ECh. 4.5 - Prob. 184ECh. 4.5 - Prob. 185ECh. 4.5 - Prob. 186ECh. 4.5 - Prob. 187E
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