Statistics (13th Edition)
13th Edition
ISBN: 9780134080215
Author: James T. McClave, Terry T Sincich
Publisher: PEARSON
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Chapter 8, Problem 129UP
To determine
Complete the given statement.
Expert Solution & Answer
Answer to Problem 129UP
The smaller the p-value associated with a test of hypothesis, the stronger the support for the alternative hypothesis.
Explanation of Solution
Under null hypothesis the probability of getting the test statistic as extreme as observed is defined as p-value.
If the p-value is small, then it is more usual to indicate that the alternative hypothesis is true.
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Students have asked these similar questions
32. Consider a normally distributed population with mean μ = 80
and standard deviation σ = 14.
a.
Construct the centerline and the upper and lower control
limits for the chart if samples of size 5 are used.
b. Repeat the analysis with samples of size 10.
2080 101
c. Discuss the effect of the sample size on the control limits.
Consider the following hypothesis test.
The following results are for two independent samples taken from the two populations.
Sample 1
Sample 2
n 1 = 80
n 2 = 70
x 1 = 104
x 2 = 106
σ 1 = 8.4
σ 2 = 7.6
What is the value of the test statistic? If required enter negative values as negative numbers (to 2 decimals).
What is the p-value (to 4 decimals)? Use z-table.
With = .05, what is your hypothesis testing conclusion?
Periodically, Merrill Lynch customers are asked to evaluate Merrill Lynch financial consultants and services (2000 Merrill Lynch Client Satisfaction Survey). Higher ratings on the client satisfaction survey indicate better service with 7 the maximum service rating. Independent samples of service ratings for two financial consultants are summarized here. Consultant A has 10 years of experience, whereas consultant B has 1 year of experience. Use = .05 and test to see whether the consultant with more experience has the higher population mean service rating.
Consultant A
Consultant B
= 16
= 10
= 6.82
= 6.25
= .64
= .75
State the null and alternative hypotheses.H0: 1 - 2 Ha: 1 - 2
Compute the value of the test statistic (to 2 decimals).
What is the p-value?The p-value is
What is your conclusion?
Chapter 8 Solutions
Statistics (13th Edition)
Ch. 8.2 - Prob. 1UPCh. 8.2 - 7.2 Which element of a test of hypothesis is used...Ch. 8.2 - 7.3 What is the level of significance of a test of...Ch. 8.2 - 7.4 What is the difference between Type I and Type...Ch. 8.2 - Prob. 5UPCh. 8.2 - We (generally) reject the null hypothesis when the...Ch. 8.2 - 7.7 If you test a hypothesis and reject the null...Ch. 8.2 - Consider a test of H0: μ = 4. In each of the...Ch. 8.2 - 7.8 For each of the following rejection regions,...Ch. 8.2 - Use the applet Hypothesis Test for a Mean to...
Ch. 8.2 - Walking to improve health. In a study...Ch. 8.2 - Americans’ favorite sport. The Harris Poll (Dec....Ch. 8.2 - Infants’ listening time. Researchers writing in...Ch. 8.2 - 7.10 Play Golf America program. The Professional...Ch. 8.2 - Effectiveness of online courses. The Sloan Survey...Ch. 8.2 - DNA-reading tool for quick identification of...Ch. 8.2 - Calories in school lunches. The U.S. Department of...Ch. 8.2 - 7.12 A border protection avatar. The National...Ch. 8.2 - Virtual reality hypnosis for pain. The...Ch. 8.2 - Mercury levels in wading birds. According to a...Ch. 8.2 - 7.17 Jury trial outcomes. Sometimes, the outcome...Ch. 8.2 - Prob. 21ACACh. 8.3 - 7.19 Consider the test of H0: μ = 7. For each of...Ch. 8.3 - 7.20 If a hypothesis test were conducted using α =...Ch. 8.3 - 7.21 For each α and observed significance level...Ch. 8.3 - 7.22 In a test of the hypothesis H0: μ = 50 versus...Ch. 8.3 - 7.23 In a test of H0: μ = 100 against Ha: μ > 100...Ch. 8.3 - Prob. 27LMCh. 8.3 - Prob. 28LMCh. 8.3 - Prob. 29LMCh. 8.3 - 7.27 An analyst tested the null hypothesis that μ...Ch. 8.4 - What conditions are required for a valid...Ch. 8.4 - For what values of the test statistic do you...Ch. 8.4 - 7.30 A random sample of 100 observations from a...Ch. 8.4 - 7.31 A random sample of 64 observations produced...Ch. 8.4 - Suppose you are interested in conducting the...Ch. 8.4 - Use the applet Hypotheses Test for a Mean to...Ch. 8.4 - Use the applet Hypotheses Test for a Mean to...Ch. 8.4 - Use the applet Hypotheses Test for a Mean to...Ch. 8.4 - Stability of compounds in new drugs. Refer to the...Ch. 8.4 - Corporate sustainability of CPA firms. Refer to...Ch. 8.4 - Speeding and young drivers. Psychologists...Ch. 8.4 - Emotional empathy in young adults. According to a...Ch. 8.4 - Prob. 40ACBCh. 8.4 - 7.35 Facial structure of CEOs. Refer to the...Ch. 8.4 - 7.33 Packaging of a children’s health food. Can...Ch. 8.4 - Prob. 43ACICh. 8.4 - Birth order and IQ. An international team of...Ch. 8.4 - Prob. 45ACICh. 8.4 - Cooling method for gas turbines. A popular cooling...Ch. 8.4 - Irrelevant speech effects. Refer to the Acoustical...Ch. 8.4 - 7.39 Time required to complete a task. When a...Ch. 8.4 -
Social interaction of mental patients. The...Ch. 8.4 - Instructing English-as-a-first-language learners....Ch. 8.5 - In what ways are the distributions of the...Ch. 8.5 - Under what circumstances should you use the...Ch. 8.5 - For each of the following rejection regions,...Ch. 8.5 - For each of the rejection regions defined in...Ch. 8.5 - A random sample of n observations is selected from...Ch. 8.5 - The following sample of six measurements was...Ch. 8.5 - 7.50 A sample of five measurements, randomly...Ch. 8.5 - Prob. 58LMCh. 8.5 - Prob. 59ACBCh. 8.5 - Prob. 60ACBCh. 8.5 - Dental anxiety study. Refer to the BMC Oral...Ch. 8.5 - Crab spiders hiding on flowers. Refer to...Ch. 8.5 - Prob. 63ACBCh. 8.5 - Radon exposure in Egyptian tombs. Refer to the...Ch. 8.5 - Prob. 65ACICh. 8.5 - Pitch memory of amusiacs. Amusia is a congenital...Ch. 8.5 - Free recall memory strategy. Psychologists who...Ch. 8.5 - Prob. 68ACICh. 8.5 - Prob. 69ACICh. 8.5 - Prob. 70ACICh. 8.5 - Prob. 71ACICh. 8.5 - Prob. 72ACACh. 8.6 - What type of data, quantitative or qualitative, is...Ch. 8.6 - What conditions are required for a valid...Ch. 8.6 - For the binomial sample sizes and...Ch. 8.6 - Suppose a random sample of 100 observations from a...Ch. 8.6 - Suppose the sample in Exercise 8.76 has produced ...Ch. 8.6 - A random sample of 100 observations is selected...Ch. 8.6 - Refer to Exercise 7.58 (p. 342). in which 50...Ch. 8.6 - Use the applet Hypotheses Test for a Proportion to...Ch. 8.6 - Use the applet Hypotheses Test for a Proportion to...Ch. 8.6 - Paying for music downloads. If you use the...Ch. 8.6 - Underwater sound-locating ability of alligators....Ch. 8.6 - Gummy bears: red or yellow? Chance (Winter 2010)...Ch. 8.6 - 7.76 Dehorning of dairy calves. For safety...Ch. 8.6 - Teenagers’ use of emoticons in school writing....Ch. 8.6 - 7.71 TV subscription streaming. “Streaming” of...Ch. 8.6 - Underwater acoustic communication. Refer to...Ch. 8.6 - Identifying organisms using a computer. National...Ch. 8.6 - 7.75 Organic-certified coffee. Coffee markets that...Ch. 8.6 - Detection of motorcycles while driving. The...Ch. 8.6 - Defensibility of a landscape. Settlers often chose...Ch. 8.6 - Astronomy students and the Big Bang Theory....Ch. 8.6 - Prob. 92ACACh. 8.6 - Prob. 93ACACh. 8.7 - Define the power of the test.
Ch. 8.7 - Prob. 95UPCh. 8.7 - Prob. 96UPCh. 8.7 - Prob. 97LMCh. 8.7 - Refer to Exercise 8.97.
If μ = 1,040 instead of...Ch. 8.7 - Prob. 99LMCh. 8.7 - Refer to Exercise 8.99.
Find β for each of the...Ch. 8.7 - Prob. 101LMCh. 8.7 - Prob. 102ACICh. 8.7 - Prob. 103ACICh. 8.7 - Gas mileage of the Honda Civic. According to the...Ch. 8.7 - Prob. 105ACICh. 8.7 - Prob. 106ACICh. 8.7 - Prob. 107ACICh. 8.8 - What sampling distribution is used to make...Ch. 8.8 - Prob. 109UPCh. 8.8 - Prob. 110UPCh. 8.8 - Prob. 111UPCh. 8.8 - Prob. 112LMCh. 8.8 - Prob. 113LMCh. 8.8 - Prob. 114LMCh. 8.8 - Prob. 115LMCh. 8.8 - Prob. 116LMCh. 8.8 - Prob. 117ACBCh. 8.8 - Prob. 118ACBCh. 8.8 - Characteristics of a rockfall. Refer to the...Ch. 8.8 - Prob. 120ACBCh. 8.8 - Prob. 121ACBCh. 8.8 - Oil content of fried sweet potato chips. Refer to...Ch. 8.8 - Prob. 123ACICh. 8.8 - Prob. 124ACICh. 8.8 - Prob. 125ACICh. 8.8 - Prob. 126ACICh. 8.8 - Prob. 127ACICh. 8.8 - Motivation of drug dealers. Refer to the Applied...Ch. 8 - Prob. 129UPCh. 8 - Prob. 130UPCh. 8 - Prob. 131UPCh. 8 - Prob. 132UPCh. 8 - Prob. 133UPCh. 8 - Prob. 134LMCh. 8 -
A random sample of n = 200 observations from a...Ch. 8 - Prob. 136LMCh. 8 - Prob. 137LMCh. 8 - Prob. 138LMCh. 8 - Prob. 139ACBCh. 8 - Prob. 140ACBCh. 8 - Prob. 141ACBCh. 8 - Prob. 142ACBCh. 8 - Accounting and Machiavellianism. Behavioral...Ch. 8 - Prob. 144ACBCh. 8 - Prob. 145ACBCh. 8 - Prob. 146ACBCh. 8 - Prob. 147ACBCh. 8 - Prob. 148ACBCh. 8 - Prob. 149ACBCh. 8 - Prob. 150ACICh. 8 - Prob. 151ACICh. 8 - Prob. 152ACICh. 8 - Prob. 153ACICh. 8 - Prob. 154ACICh. 8 - Single-parent families. Examining data collected...Ch. 8 - Prob. 156ACICh. 8 - Prob. 157ACICh. 8 - Prob. 158ACICh. 8 - Prob. 159ACICh. 8 - Prob. 160ACICh. 8 - Prob. 161ACICh. 8 - Prob. 162ACICh. 8 - Prob. 163ACICh. 8 - Prob. 164ACICh. 8 - Prob. 165ACACh. 8 - Parents who condone spanking. In Exercise 4.138...Ch. 8 - Prob. 167ACACh. 8 - Prob. 168ACACh. 8 - Prob. 169CTCCh. 8 - Prob. 170CTC
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