Practical Management Science
6th Edition
ISBN: 9781337671989
Author: WINSTON
Publisher: Cengage
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Chapter 14.2, Problem 8P
Summary Introduction
To perform: Classification using NeuralTools and determine the sensitive percentage of bad prediction in the test data.
Introduction: Simulation model is the digital prototype of the physical model that helps to
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In the sampling, hypothesis testing and analysis of business research data, which of the following is true?
Group of answer choices
1. We make inferences about the population parameters based on sample statistics
2. The sample should be representative of the population
3. A larger sample size is always better
4. Answers1 and 2 only
5. Answers 1, 2 and 3
A publisher reports that 67% of their readers own a personal computer. A marketing executive wants to test the claim that the percentage is actually over the reported percentage. A random sample of 160 found that 71% of the readers owned a personal computer. Is there sufficient evidence at the 0.01 level to support the executive's claim?
Step 1 of 6:
State the null and alternative hypotheses.
Step 2 of 6:
Find the value of the test statistic. Round your answer to two decimal places.
Step 3 of 6:
Specify if the test is one-tailed or two-tailed.
Step 4 of 6:
Determine the decision rule for rejecting the null hypothesis, H0H0.
Step 5 of 6:
Make the decision to reject or fail to reject the null hypothesis.
Step 6 of 6:
State the conclusion of the hypothesis test.
The data show the bug chirps per minute at different temperatures. Find the regression equation, letting the first variable be the independent (x) variable. Find the best-predicted temperature for a time when a bug is chirping at the rate of 3000 chirps per minute. Use a significance level of 0.05. What is wrong with this predicted value?
Chirps in 1 min
1012
872
895
1078
1235
1172
Temperature
(°F)
81.9
76.3
78.4
84
87.2
88.4
What is the regression equation?
y= +. x
What is the best-predicted temperature for a time when a bug is chirping at the rate of 3000 chirps per minute?
The best-predicted temperature when a bug is chirping at 3000 chirps per minute is ?
What is wrong with this predicted value? Choose the correct answer below.
A.
It is unrealistically high. The value 3000 is far outside of the range of observed values.
B.
The first variable should have been the dependent variable.
C.
It is only an…
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