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WebAssign for Devore's Probability and Statistics for Engineering and the Sciences, 9th Edition [Instant Access], Single-Term
9th Edition
ISBN: 9780357893104
Author: Devore; Jay L.
Publisher: Cengage Learning US
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Textbook Question
Chapter 15.4, Problem 27E
In an experiment to study the way in which different anesthetics affect plasma epinephrine concentration, ten dogs were selected and concentration was measured while they were under the influence of the anesthetics isoflurane, halothane, and cyclopropane (“Sympathoadrenal and Hemodynamic Effects of Isoflurane, Halothane, and Cyclopropane in Dogs,” Anesthesiology, 1974:465-470). Test at level .05 to see whether there is an anesthetic effect on concentration.
| Dog | |||||
| 1 | 2 | 3 | 4 | 5 | |
| Isoflurane | .28 | .51 | 1.00 | .39 | .29 |
| Halothane | .30 | .39 | .63 | .38 | .21 |
| Cyclopropane | 1.07 | 1.35 | .69 | .28 | 1.24 |
| 6 | 7 | 8 | 9 | 10 | |
| Isoflurane | .36 | .32 | .69 | .17 | .33 |
| Halothane | .88 | .39 | .51 | .32 | .42 |
| Cyclopropane | 1.53 | .49 | .56 | 1.02 | .30 |
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& The accompanying table gives plasma epinephrine
concentration for ten experimental subjects during
(1) isoflurane, (2) halothane, and (3) cyclopropane
anesthesia ("Sympathoadrenal and Hemodynamic
Effects of Isoflurane, Halothane, and Cyclopropane
in Dogs." Anesthesiology, 1974: 465-470).
a. Does the choice of anesthetic affect true average
concentration? Test H: a, = a, = a, = 0 at
level .05 after constructing the ANOVA table.
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Subject (B)
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5
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.39
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Anesthetic
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.28 1.24
6.
7
8
10
33
17
.32
.56 1.02
.69
.32
.39
1
.36
Anesthetic
2
.88
51
.42
(A)
3 1.53
49
.30
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A study was conducted to examine the effect of diet cola consumption on calcium levels in women. A sample of 16 healthy women
aged 18 to 40 were randomly assigned to drink 24 ounces of either diet cola or water. Their urine was collected for three hours after
ingestion of the beverage and calcium excretion (in mg) was measured. The data are stored in ColaCalcium.
Cotinine levels measured in a group of nonsmokers exposed to tobacco smoke (n = 40, Mean = 60.58 ng>mL, s = 138.08 ng>mL) and a group of nonsmokers not exposed to tobacco smoke (n = 40, Mean = 16.35 ng>mL, s = 62.53 ng>mL). Cotinine is a metabolite of nicotine, meaning that when nicotine is absorbed by the body, cotinine is produced.
Construct the confidence interval appropriate for the hypothesis nonsmokers exposed to tobacco smoke have a higher mean cotinine level than nonsmokers not exposed to tobacco smoke.
Chapter 15 Solutions
WebAssign for Devore's Probability and Statistics for Engineering and the Sciences, 9th Edition [Instant Access], Single-Term
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