A simple random sample of 5 months of sales data provided the following information
Month 1 2 3 4 5
Units Sold 96 110 82 96 91
a. Develop a point estimate of the population mean number of units sold per month.
b. Develop a point estimate of the population standard deviation (to 2 decimals).
x : means the unit sold
n = total number of month = 5
point estimate of the population mean = sample mean
Answer for "a" part
point estimate of the population mean number of unit sold per month
95 |
Part "b "
The point estimate of the population standard devation = sample standard deviation
Round the sample standard deviation up to 2 decimal place
Final answer for b:-
point estimate of the population standard deviation = 10.15
A simple random sample of 5 months of sales data provided the following information
A simple random sample of 5 months of sales data provided the following information: Month 1 2 3 4 5 Units Sold 97 100 89 97 92 a. Develop a point estimate of the population mean number of units sold per month. b. Develop a point estimate of the population standard deviation (to 2 decimals).
1.A sample of 5 months of sales data provided the following information: Month 1 2 3 4 5Units Sold 95 120 82 95 93a. Develop a point estimate of the population mean number of units sold per month (to 1 decimal) b. Develop a point estimate of the population standard deviation (to 2 decimals).2.The following data are from a simple random sample. 5, 8, 13, 6, 13, 15 a. What is the point estimate of the population mean? b. What is the point estimate of the...
A simple random sample of months of sales data provided the following information: Month 1 2 3 4 5 Units Sold 95 100 87 95 93 a. Develop a point estimate of the population mean number of units sold per month. b. Develop a point estimate of the population standard deviation (to 2 decimals).
A simple random sample of 5 months of sales data provided the following information: Month: 1 2 3 4 5 Units Sold: 94 80 85 94 92 (a) Develop a point estimate of the population mean number of units sold per month. x = (b) Develop a point estimate of the population standard deviation. If required, round your answer to two decimal places. s = ANSWERS ARE NOT 2.98 & 1.46
A sample of 5 months of sales data provided the following information. Month 1 2 3 4 5 Units Sold 100 98 80 92 95 (a) Develop a point estimate of the population mean number of units sold per month. b) Develop a point estimate of the population standard deviation. (Round your answer to two decimal places.)
A sample of 5 months of sales data can be found in Excel below: a. Develop a point estimate of the population mean number of units sold per month (to 1 decimal). b. Develop a point estimate of the population standard deviation (to 2 decimals).
Typical treatment costs (in dollars) for Herceptin are provided by a simple random sample of 10 patients. 4,376 5,594 2,719 4,920 4,479 4,782 6,453 4,134 4,253 3,812 Develop a point estimate of the mean cost per treatment with Herceptin (to 2 decimals). $ Develop a point estimate of the standard deviation of the cost per treatment with Herceptin (to 2 decimals).
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Exercise 8.14 Algorithmic) A simple random sample with n 54 provided a sample mean of 22.0 and a sample standard deviation of 4.1 a. Develop a 90% confidence interval for the population mean (to 2 decimals) b. Develop a 95% confidence interval for the population mean (to 2 decimals). c. Develop a 99% confidence interval for the population mean (to 2 decimals) d. What happens to the margin of error and the confidence interval as the confidence level is increased?...
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