that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value t/2. (b) find the critical value z/2. or (e) state that neither the normal distribution nor thet distribution applies Here are summary statistics for randomly selected weights of newborn girls: n= 168, x= 29.3 hg, s7.7 hg. The confidence level is 95% n3D Select the correct choice below and, if necessary, fil in the answer box to complete your choice. OA G/2" (Round to two decimal places as needed.) OB. Zal2" (Round to two decimal places as needed.) OC. Neither the normal distribution nor the t distribution applies

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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 t12. (b) find the critical value z12. or (e)
state that neither the normal distribution nor the t distribution applies.
Here are summary statistics for randomly selected weights of newborn girls: n= 168, x= 29.3 hg, s=7.7 hg. The confidence level is 95%
Select the correct choice below and, if necessary, fil in the answer box to complete your choice.
OA /2
(Round to two decimal places as needed.)
OB.
(Round to two decimal places as needed.)
OC. 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 t12. (b) find the critical value z12. or (e) state that neither the normal distribution nor the t distribution applies. Here are summary statistics for randomly selected weights of newborn girls: n= 168, x= 29.3 hg, s=7.7 hg. The confidence level is 95% Select the correct choice below and, if necessary, fil in the answer box to complete your choice. OA /2 (Round to two decimal places as needed.) OB. (Round to two decimal places as needed.) OC. Neither the normal distribution nor the t distribution applies.
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