Determine the confidence level for each of the following lar

Determine the confidence level for each of the following large-sample one-sided confidence bounds. (Round your answers to the nearest whole number.)

(a) Upper bound: x + 0.84s/

%

(b) Lower bound: x 2.33s/

Answer = %

(c) Upper bound: x + 0.52s/

Answer =  %

n

Solution

(a) Upper bound: x + 0.84s/

Confidence level whenMargin of error = 0.84s

z = 1

Hence Confidence level = 84%

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(b) Lower bound: x 2.33s/

For 2.33 lower bound confidence level = 99%

c) Upper bound 0.52 s is

98%

Hence