Question

part d please

For a data set obtained from a sample, n = 81 and x = 50.25. It is known that o = 4.1.
(a) What is the point estimate of p?
50.25
(b) Find a corresponding to a 95% confidence level.
0.05
(c) Find 1 - a/2.
0.975
1 - a/2 =
(d) Find to 2 decimal places Za/2 for 95% confidence level.
2.58
Z0/2 =
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Transcribed Image Text

For a data set obtained from a sample, n = 81 and x = 50.25. It is known that o = 4.1. (a) What is the point estimate of p? 50.25 (b) Find a corresponding to a 95% confidence level. 0.05 (c) Find 1 - a/2. 0.975 1 - a/2 = (d) Find to 2 decimal places Za/2 for 95% confidence level. 2.58 Z0/2 =