Assuming that the population is normally distributed, construct a 90% confidence interval for the population mean for each of the samples below. Explain why different confidence intervals even though they have the same mean and range. Sample A: 1 3 Sample B: 1 2 3 4 5 6 6 8 3 4 5 6 7 8 Full data set Construct a 90% confidence interval for the population mean for sample A. (Type integers or decimals rounded to two decimal places as needed.)

Assuming that the population is normally distributed, construct a 99% confidence interval for the population mean for each of the samples below. Explain why these two samples produce different confidence intervals even though they have the same mean and range. Full data set Sample A: 1 2 2 2 7 7 7 8 Sample B: 1 2 3 4 5 6 7 8 Construct a 99% confidence interval for the population mean for sample A. (Type integers or decimals rounded to two decimal places as needed.) C

If n = 15, ¯xx¯ = 36, and s = 12, construct a confidence interval at a 90% confidence level. Assume the data came from a normally distributed population. Give your answers to three decimal places.

Tina catches a 14-pound bass.  She does not know the population mean or standard deviation.  So she takes a sample of five friends and they say the last bass they caught was 9, 12, 13, 10, and 10 pounds.  Find the t and calculate a 95% (α = .05) confidence interval.

Assuming that the population is normally​ distributed, construct a 95​% confidence interval for the population mean for each of the samples below. Explain why these two samples produce different confidence intervals even though they have the same mean and range.   Sample​ A: 1    2    4    4    5    5    7    8    Full data set Sample​ B: 1    2    3    4    5    6    7    8         Question content area bottom Part 1 Construct a 95​% confidence interval for the population mean for sample A.   enter your response here≤μ≤enter your response here

For the data set below, calculate r, r2, and a 95 percent confidence interval in r units. Then write a one- to two sentence conclusion statement that includes whether the null hypothesis was rejected or not and whether there is a strong /weak/no relationship. Assume a two tailed hypothesis and α = .05.   Case 1 Case 2 Case 3 Case 4 Case 5 Case 6 X 1.05 1.15 1.30 2.00 1.75 1.00 Y 2 2 3 4 5 2

If n=11, 7(x-bar)=45, and s=5, construct a confidence interval at a 95% confidence level. Assume the data came from a normally distributed population. Give your answers to one decimal place.

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If the analyst decides to increase the sample size (n) from 75 to 100, while maintaining the same confidence level, the width of the confidence interval would then: fluctuate up and down. remain unchanged. decrease. increase.