Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value f/2. (b) find the critical value Za/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=163, x=29.3 hg, s= 7.7 hg. The confidence level is 95%. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA. ¹/2= (Round to two decimal places as needed.) OB. Za/2 KIDS (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 ta/2. (b) find the critical value Za/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= 163, x= 29.3 hg, s= 7.7 hg. The confidence level is 95%.
@
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
OA 1/2 =
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OB. Za/2=
(Round to two decimal places as needed.)
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OC. Neither the normal distribution nor the t distribution applies.
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Transcribed Image Text:Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value ta/2. (b) find the critical value Za/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= 163, x= 29.3 hg, s= 7.7 hg. The confidence level is 95%. @ Select the correct choice below and, if necessary, fill in the answer box to complete your choice. OA 1/2 = W S Wiew an example дв ad OB. Za/2= (Round to two decimal places as needed.) (Round to two decimal places as needed.) OC. Neither the normal distribution nor the t distribution applies. X अवा # 3 E Get more help. F3 D 80 C $ 4 9 R F % 5 V F T G ^ 6 B MacBook Air Y H 7 x U N * 30 8 J DII FO I M ( 9 K F9 O < 其 க ) O L F10 P Clear all - > Л. : ; I { 11 [ Check answer ? command option | 1 } 1 dele
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