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(a) Use SALT to summarize the data and fill in the following table, rounding values to four decimal places as needed. Variable Sample Size 860 8.841 Mean ✓ Standard Deviation 2.1718✔✔✔ (b) We need to verify the assumptions for using the one-sample t confidence interval before creating a confidence interval. First the observations in the sample must be randomly selected from the population or the sample should be selected in such a way that the sample is representative of the population. Based on what is known about how this sample was collected, the first assumption has been ✓ ✔met. Second, the sample size generally should be 30 or larger. Based on the sample size, the second assumption [has been (c) Use SALT to compute the confidence interval at the desired level to estimate the true population mean. ✔✔✔met.

(a) Use SALT to summarize the data and fill in the following table, rounding values to four decimal places as needed. Variable Sample Size 860 8.841 Mean ✓ Standard Deviation 2.1718✔✔✔ (b) We need to verify the assumptions for using the one-sample t confidence interval before creating a confidence interval. First the observations in the sample must be randomly selected from the population or the sample should be selected in such a way that the sample is representative of the population. Based on what is known about how this sample was collected, the first assumption has been ✓ ✔met. Second, the sample size generally should be 30 or larger. Based on the sample size, the second assumption [has been (c) Use SALT to compute the confidence interval at the desired level to estimate the true population mean. ✔✔✔met.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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(a) Use SALT to summarize the data and fill in the following table, rounding values to four decimal places as needed. Sample Size Variable 860 8.841 Standard Error: Degrees of Freedom: Lower Limit: Upper Limit: Mean (b) We need to verify the assumptions for using the one-sample t confidence interval before creating a confidence interval. First the observations in the sample must be randomly selected from the population or the sample should be selected in such a way that the sample is representative of the population. Based on what is known about how this sample was collected, the first assumption has been ✔ met. Second, the sample size generally should be 30 or larger. Based on the sample size, the second assumption has been Standard Deviation (c) Use SALT to compute the confidence interval at the desired level to estimate the true population mean. Enter the requested values below, rounded to three decimal places as needed. 0.074059 859 2.1718 ✓ x ✓ ✓ met. Enter a number. (d) Provide an interpretation of the confidence interval. (Give your numeric answer as a percent.) You can be 90 ✔✔% confident that the true population mean Coho salmon weight, in pounds, anglers might expect ✓ ✓ The method used to construct this interval estimate for the population mean is successful in capturing the actual population mean about 90 is within the computed interval. ✓ % of the time.
Transcribed Image Text:(a) Use SALT to summarize the data and fill in the following table, rounding values to four decimal places as needed. Sample Size Variable 860 8.841 Standard Error: Degrees of Freedom: Lower Limit: Upper Limit: Mean (b) We need to verify the assumptions for using the one-sample t confidence interval before creating a confidence interval. First the observations in the sample must be randomly selected from the population or the sample should be selected in such a way that the sample is representative of the population. Based on what is known about how this sample was collected, the first assumption has been ✔ met. Second, the sample size generally should be 30 or larger. Based on the sample size, the second assumption has been Standard Deviation (c) Use SALT to compute the confidence interval at the desired level to estimate the true population mean. Enter the requested values below, rounded to three decimal places as needed. 0.074059 859 2.1718 ✓ x ✓ ✓ met. Enter a number. (d) Provide an interpretation of the confidence interval. (Give your numeric answer as a percent.) You can be 90 ✔✔% confident that the true population mean Coho salmon weight, in pounds, anglers might expect ✓ ✓ The method used to construct this interval estimate for the population mean is successful in capturing the actual population mean about 90 is within the computed interval. ✓ % of the time.
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