2.a) The sample mean is
The sample variance is
b) The probability that the population mean is between 9 and 10 is
c) The 95% confidence interval for the population mean is
d) The 95% confidence interval using the sample standard deviation is given by
Here, the degree of freedom is = 12 - 1 = 11
The critical t-value is 2.201.
SO, the 95% confidence interval is
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For the following data: 1 2 3 4 5 6 16 20 18 17 18 21 a. Calculate the sample mean and sample variance b. Calculate the probability that the population mean is between 9 and 10 if the population standard deviation is known to be 2.3. What is the 95% confidence interval for the population mean if the population standard deviation is known to be 2.3? d. Calculate the 95% confidence interval using the sample standard deviation. c.
2. For the following data: 1 2 3 4 5 5 6 16 20 18 17 18 21 1. Calculate the sample mean and sample variance b. Calculate the probability that the population mean is between 9 and 10 if the population standard deviation is known to be 2.3. c. What is the 95% confidence interval for the population mean if the population standard deviation is known to be 2.32 d. Calculate the 95% confidence interval using the sample standard...
For the following data: 2 3 5 6.6 7.1 7.8 4.7 8.5 5.4 a. Calculate the sample mean and sample variance b. Calculate the probability that the population mean is between 9 and 10 if the population standard deviation is known to be 1.5. c. What is the 98% confidence interval for the population mean if the population standard deviation is known to be 1.5? d. Calculate the 98% confidence interval using the sample standard deviation.
For the following data: a. Calculate the sample mean and sample variance b. Calculate the probability that the population mean is between 9 and 10 if the population standard deviation is known to be 1.5. c. What is the 98% confidence interval for the population mean if the population standard deviation is known to be 1.5? d. Calculate the 98% confidence interval using the sample standard deviation. 1 2 3 4 3 6 6.6 7.1 7.8 4.7 8.5 5.4
1) Calculate a 95% and 99% confidence interval for the following data set. Note: this is a sample. Show your steps including the mean, z-score, standard deviation, and standard error that you use. Use the data set listed below. 12 10 18 16 11 10 9 17 6 13 10 20 21 24 18 17 19 12 11 10
Please Solve As soon as Solve quickly I get you thumbs up directly Thank's Rawan Badran 2. For the following data: 2 3 4 5 6 12 10 9 8 5 13 a. Calculate the sample mean and sample variance b. Calculate the probability that the population mean is between 9 and 10 if the population standard deviation is known to be 3. c. What is the 90% confidence interval for the population mean if the population standard deviation is...
Please Solve As soon as Solve quickly I get you thumbs up directly Thank's Abdul-Rahim Taysir 2. For the following data: 2 3 4 5 6 12 10 9 8 5 13 a. Calculate the sample mean and sample variance b. Calculate the probability that the population mean is between 9 and 10 if the population standard deviation is known to be 3. c. What is the 90% confidence interval for the population mean if the population standard deviation is...
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The following sample data are from a normal population: 14, 12, 16, 19, 17, 15, 10, 9. (a) What is the point estimate of the population mean? (b) What is the point estimate of the population standard deviation? (Round your answer to three decimal places.) (c) With 95% confidence, what is the margin of error for the estimation of the population mean? (Round your answer to one decimal place.) (d) What is the 95% confidence interval for the population mean?...
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