Find the 95% z-interval or t-interval for the indicated parameter. x = 145, s = 30, n = 27 p = 0.7, n =61 (a) μ (b) p (a) The 95% confidence interval for u is [133.13 to 156.87]. (Round to two decimal places as needed.) (b) The 95% confidence interval for p is [to]. (Round to three decimal places as needed.)

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Please help me with these question. they are two different question

Find the 95% z-interval or t-interval for the indicated parameter.
(a) μ
X=145, s = 30, n = 27
p=0.7, n=61
(b) p
(a) The 95% confidence interval for µ is [133.13 to 156.87].
(Round to two decimal places as needed.)
(b) The 95% confidence interval for p is to ].
(Round to three decimal places as needed.)
Transcribed Image Text:Find the 95% z-interval or t-interval for the indicated parameter. (a) μ X=145, s = 30, n = 27 p=0.7, n=61 (b) p (a) The 95% confidence interval for µ is [133.13 to 156.87]. (Round to two decimal places as needed.) (b) The 95% confidence interval for p is to ]. (Round to three decimal places as needed.)
Find the appropriate percentile from a t-distribution for constructing the
following confidence interval.
99% t-interval with n = 4
The percentile from the t-distribution is. (Round to three decimal
places as needed.)
Transcribed Image Text:Find the appropriate percentile from a t-distribution for constructing the following confidence interval. 99% t-interval with n = 4 The percentile from the t-distribution is. (Round to three decimal places as needed.)
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