Question

5. Construct a 90% confidence interval to estimate the population mean when x? = 133 and s = 28 for the sample sizes below. a) n = 40 b) n = 50 c) n = 100 Click here to view page 1 of the critical t-score table.² Click here to view page 2 of the critical t-score table.³ a) The 90% confidence interval for the population mean when n = 40 is from a lower limit of to an upper limit of . (Round to two decimal places as needed.) b) The 90% confidence interval for the population mean when n = 50 is from a lower limit of to an upper limit of . (Round to two decimal places as needed.) c) The 90% confidence interval for the population mean when n = 100 is from a lower limit of to an upper limit of . (Round to two decimal places as needed.)

          5. Construct a 90% confidence interval to estimate the population mean when x? = 133 and s = 28 for the sample sizes below.
a) n = 40 b) n = 50 c) n = 100
Click here to view page 1 of the critical t-score table.²
Click here to view page 2 of the critical t-score table.³
a) The 90% confidence interval for the population mean when n = 40 is from a lower limit of ________ to an upper limit of ________.
(Round to two decimal places as needed.)
b) The 90% confidence interval for the population mean when n = 50 is from a lower limit of ________ to an upper limit of ________.
(Round to two decimal places as needed.)
c) The 90% confidence interval for the population mean when n = 100 is from a lower limit of ________ to an upper limit of ________.
(Round to two decimal places as needed.)

5. Construct a 90% confidence interval to estimate the population mean when x? = 133 and s = 28 for the sample sizes below.
a) n = 40 b) n = 50 c) n = 100
Click here to view page 1 of the critical t-score table.²
Click here to view page 2 of the critical t-score table.³
a) The 90% confidence interval for the population mean when n = 40 is from a lower limit of to an upper limit of .
(Round to two decimal places as needed.)
b) The 90% confidence interval for the population mean when n = 50 is from a lower limit of to an upper limit of .
(Round to two decimal places as needed.)
c) The 90% confidence interval for the population mean when n = 100 is from a lower limit of to an upper limit of .
(Round to two decimal places as needed.)

Added by Colin C.

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