Practical Management Science
6th Edition
ISBN: 9781337406659
Author: WINSTON, Wayne L.
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
Last year, 49% of business owners gave a holiday gift to their employees. A survey of business owners conducted this year indicates that 37% planned to provide a holiday gift to their employees.
Suppose the survey results are based on a sample of 75 business owners.
a. How many business owners in the survey planned to provide a holiday gift to their employees this year? Round your answer to the nearest whole number.
b. Suppose the business owners in the sample did as they planned. Compute the p-value for a hypothesis test that can be used to determine if the proportion of business owners providing holiday gifts
had decreased from last year. Enter negative value if your answer is negative.
Hop - Select your answer
Ha P
z-value
p-value
0.49
Select your answer-
0.49
(to 2 decimals)
(to 4 decimals)
c. Using a 0.02 level of significance, would you conclude that the proportion of business owners providing gifts decreased?
- Select your answer-
Ho
What is the smallest level of significance…
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.
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