STATISTICAL TECHNIQUES FOR BUSINESS AND
17th Edition
ISBN: 9781307261158
Author: Lind
Publisher: MCG/CREATE
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Chapter 9, Problem 1SR
a.
To determine
Find the population
a.
Expert Solution
Explanation of Solution
Here, the sample mean is provided and there is no information about the population mean of daily sales for Bun-and-Run franchise.
b.
To determine
Find the best estimate of the population mean.
b.
Expert Solution
Answer to Problem 1SR
The best estimate of the population mean is $20,000.
Explanation of Solution
Calculation:
The sample mean is the point estimate of the population mean. Moreover, the sample statistic gives the best estimate for the population parameter.
Here, the sample mean is $20,000. Hence, the point estimate of the population mean is $20,000. That is, the best estimate for the population mean is the sample mean, which is denoted as
c.
To determine
Find the 95% confidence interval for the population mean of daily sales.
c.
Expert Solution
Answer to Problem 1SR
The 95% confidence interval for the population mean of daily sales is
Explanation of Solution
Calculation:
Step-by-step procedure to obtain the confidence interval using MINITAB software is given below:
- Choose Stat > Basic Statistics > 1-Sample Z.
- In Summarized data, enter the
sample size as 40 and mean as 20,000. - In Standard deviation, enter 3,000.
- Check Options, enter Confidence level as 95.
- Choose Mean ≠ Hypothesized mean in alternative.
- Click OK in all dialogue boxes.
Output using MINITAB software is given below:
From the MINITAB output, the 95% confidence interval for the population mean of daily sales is
d.
To determine
Interpret the confidence interval in Part (c).
d.
Expert Solution
Explanation of Solution
Interpretation:
There is 95% confidence that the population mean of daily sales lies between $19,070 and $20,930.
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3. A bag of Skittles contains five colors: red, orange, green, yellow, and purple. The
probabilities of choosing each color are shown in the chart below. What is the probability
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Use the following scenario for questions 1 & 2.
One question on the Census at School survey
asks students if they would prefer to be happy,
healthy, rich, or famous. Students may only
choose one of these responses. The two-way
table summarizes the responses of 218 high
school students from the United States by
sex.
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1. Define event F as a female student and event R as rich.
a. Find
b. Find or
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a. Find
b. Find
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Use the following scenario for questions 3 & 4.
At the end of a 5k race, runners are
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52
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106
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I need help with this problem and an explanation of the solution for the image described below. (Statistics: Engineering Probabilities)
Chapter 9 Solutions
STATISTICAL TECHNIQUES FOR BUSINESS AND
Ch. 9 - Prob. 1SRCh. 9 - Prob. 1ECh. 9 - A sample of 81 observations is taken from a normal...Ch. 9 - Prob. 3ECh. 9 - Suppose you know and you want an 85% confldence...Ch. 9 - Prob. 5ECh. 9 - Prob. 6ECh. 9 - Prob. 7ECh. 9 - Prob. 8ECh. 9 - Prob. 2SR
Ch. 9 - Prob. 9ECh. 9 - Prob. 10ECh. 9 - Prob. 11ECh. 9 - Prob. 12ECh. 9 - Prob. 13ECh. 9 - Prob. 14ECh. 9 - Prob. 3SRCh. 9 - Prob. 15ECh. 9 - Ms. Maria Wilson is considering running for mayor...Ch. 9 - Prob. 17ECh. 9 - Prob. 18ECh. 9 - Prob. 4SRCh. 9 - Prob. 19ECh. 9 - Prob. 20ECh. 9 - Prob. 21ECh. 9 - Prob. 22ECh. 9 - Prob. 23ECh. 9 - Prob. 24ECh. 9 - Prob. 25ECh. 9 - Prob. 26ECh. 9 - The same study of church contributions in Scandia...Ch. 9 - Thirty-six items are randomly selected from a...Ch. 9 - Forty-nine items are randomly selected from a...Ch. 9 - The attendance at the Savannah Colts minor league...Ch. 9 - There are 300 welders employed at Maine Shipyards...Ch. 9 - Prob. 31CECh. 9 - Prob. 32CECh. 9 - Prob. 33CECh. 9 - Prob. 34CECh. 9 - Prob. 35CECh. 9 - Prob. 36CECh. 9 - Prob. 37CECh. 9 - Prob. 38CECh. 9 - Prob. 39CECh. 9 - Prob. 40CECh. 9 - Prob. 41CECh. 9 - Prob. 42CECh. 9 - Prob. 43CECh. 9 - Prob. 44CECh. 9 - Prob. 45CECh. 9 - Prob. 46CECh. 9 - Prob. 47CECh. 9 - Prob. 48CECh. 9 - Prob. 49CECh. 9 - Prob. 50CECh. 9 - Prob. 51CECh. 9 - Prob. 52CECh. 9 - Prob. 53CECh. 9 - Prob. 54CECh. 9 - Prob. 55CECh. 9 - Prob. 56CECh. 9 - Prob. 57CECh. 9 - Prob. 58CECh. 9 - Prob. 59CECh. 9 - Prob. 60CECh. 9 - Prob. 61CECh. 9 - Prob. 62CECh. 9 - Prob. 63CECh. 9 - Prob. 64CECh. 9 - Prob. 65CECh. 9 - Prob. 66CECh. 9 - A sample of 352 subscribers to Wired magazine...Ch. 9 - Prob. 68CECh. 9 - Prob. 70DACh. 9 - Prob. 1PCh. 9 - Prob. 2PCh. 9 - Prob. 3PCh. 9 - Prob. 4PCh. 9 - Prob. 5PCh. 9 - Prob. 6PCh. 9 - Prob. 7PCh. 9 - Prob. 8PCh. 9 - Prob. 9PCh. 9 - Prob. 10PCh. 9 - Prob. 11PCh. 9 - Prob. 12PCh. 9 - Prob. 13PCh. 9 - Prob. 1CCh. 9 - Prob. 1.1PTCh. 9 - Prob. 1.2PTCh. 9 - Prob. 1.3PTCh. 9 - Prob. 1.4PTCh. 9 - Prob. 1.5PTCh. 9 - Prob. 1.6PTCh. 9 - Prob. 1.7PTCh. 9 - Prob. 1.8PTCh. 9 - Prob. 1.9PTCh. 9 - Prob. 1.10PTCh. 9 - Prob. 2.1PTCh. 9 - Prob. 2.2PTCh. 9 - Prob. 2.3PTCh. 9 - Prob. 2.4PT
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