Reference no: EM13216168
1. Find the margin of error for the given values of c,s,and n
c=0.95,s=3.1,n=81
2. Construct the confidence interval to find the estimated margin of error. Then find the sample mean.
A biologist reports a confidence interval of (3.3,4.5) when estimating the mean height (in centimeters) of a sample of seedlings.
3. You are given the sample mean and the sample standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. If convenient, use technology to construct the confidence intervals.
A random sample of 60 home theater systems has a mean price of 146.00 and a standard deviation is 18.90
4. you are given the sample mean and sample standard deviation. Use this information to construct the 90% and 95% confidence interval for the population mean. Which interval is wider?If convenient, use technology to construct the confidence intervals.
A random sampling of 36 gas drills has a mean price of $626.50 and a standard deviation of $56.10
5. you are given the sample mean and sample standard deviation. Use this information to construct the 90% and 95% confidence interval for the population mean. Which interval is wider?If convenient, use technology to construct the confidence intervals.
A random sample of 41 eight ounce servings of different juice drinks has a mean of 81.4 calories and a standard deviation of 43.5 calories
6. Use the give confidence interval to find the margin of error and the sample proportion.
(0.683,0.711)
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Explain what is the project''s apv in the cases
: A project costs $1 million and has a base-case NPV of exactly zero (NPV = 0). What is the project's APV in the following cases? a. If the firm invests, it has to raise $500,000 by a stock issue. Issue costs are 15% of net proceeds.
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Determine the utilization and the efficiency of conditions
: Determine the utilization and the efficiency for each of these situations. A loan processing operation that processes an average of 7 loans per day.
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Explain how managers applying leadership principles
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Testing the difference between two means
: What two assumptions must be met when you are using the z test to test differences between two means? Can the sample standard deviations s1 and s2 be used in place of the population standard deviations σ1 and σ2?
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Evaluate the estimated margin of error
: Construct the confidence interval to find the estimated margin of error. Then find the sample mean - A biologist reports a confidence interval of (3.3,4.5) when estimating the mean height (in centimeters) of a sample of seedlings.
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Explain the major foreseeable human resource challenges
: Predict the major foreseeable human resource challenges Bigfoot Entertainment may face as the company attempts to become a more central force in the film and television industry. Justify your response.
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What is the mean number of streaked-shelled snails
: What is the mean number of streaked-shelled snails and what is the standard deviation of the number of streaked-shelled snails?
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Explain minimum wage increase-minimum wage
: Minimum Wage Increase-Minimum Wage Issue Guide Web page published by The Economic Policy Institute, linked in the Resources. Summarize why you support or refute an increase in the minimum wage.
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Find the margin of error for the values
: Find the margin of error for the values of c,s,and n and construct the confidence interval to find the estimated margin of error. Then find the sample mean.
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