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Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value t₁/2. (b) find the critical value Zα/2, or (c) state that neither the normal distribution nor the t distribution applies. Here are summary statistics for randomly selected weights of newborn girls: n=210, x=28.2 hg, s= 6.3 hg. The confidence level is 95%. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. ta/2 (Round to two decimal places as needed.) OB. Za/2 (Round to two decimal places as needed.) O C. Neither the normal distribution nor the t distribution applies.

Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value t₁/2. (b) find the critical value Zα/2, or (c) state that neither the normal distribution nor the t distribution applies. Here are summary statistics for randomly selected weights of newborn girls: n=210, x=28.2 hg, s= 6.3 hg. The confidence level is 95%. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. ta/2 (Round to two decimal places as needed.) OB. Za/2 (Round to two decimal places as needed.) O C. Neither the normal distribution nor the t distribution applies.

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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Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value to/2, (b) find the critical value Zu/2, or (c) state that neither the normal distribution nor the t distribution applies. Here are summary statistics for randomly selected weights of newborn girls: n=210, x=28.2 hg, s= 6.3 hg. The confidence level is 95%. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. ta/2= O B. (Round to two decimal places as needed.) Za/2= (Round to two decimal places as needed.) O C. Neither the normal distribution nor the t distribution applies.
Transcribed Image Text:Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value to/2, (b) find the critical value Zu/2, or (c) state that neither the normal distribution nor the t distribution applies. Here are summary statistics for randomly selected weights of newborn girls: n=210, x=28.2 hg, s= 6.3 hg. The confidence level is 95%. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. ta/2= O B. (Round to two decimal places as needed.) Za/2= (Round to two decimal places as needed.) O C. Neither the normal distribution nor the t distribution applies.
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