Confidence Level 99% SUMMARY STATISTICS n 65 Mean 16.000 Std Dev 1.400 RESULTS SE Z Margin...
| Confidence Level | 99% | ||
| SUMMARY STATISTICS | |||
| n | 65 | ||
| Mean | 16.000 | ||
| Std Dev | 1.400 | ||
| RESULTS | |||
| SE | |||
| Z | |||
| Margin of Error | |||
| Lower Limit | |||
| Upper Limit | |||
Homework Answers
Given CI level is 99%, hence α = 1 - 0.99 = 0.01
α/2 = 0.01/2 = 0.005, Zc = Z(α/2) = 2.58
SE = σ/sqrt(n)
= 1.4/sqrt(65)
= 0.1736
z value at 99% = 2.58
ME = zc * σ/sqrt(n)
ME = 2.58 * 1.4/sqrt(65)
ME = 0.4480
CI = (xbar - Zc * s/sqrt(n) , xbar + Zc * s/sqrt(n))
CI = (16 - 2.58 * 1.4/sqrt(65) , 16 + 2.58 * 1.4/sqrt(65))
CI = (15.552 , 16.448)
Lower limit = 15.5520
Upper limit = 16.4480
Add Answer to:
Confidence Level
99%
SUMMARY STATISTICS
n
65
Mean
16.000
Std Dev
1.400
RESULTS
SE
Z
Margin...
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