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WorksheetsLength of Confidence Interval
Total questions: 10
Worksheet time: 50mins
What is the right-tailed area if the confidence interval is 75%?
0.005
0.05
0.10
0.25
It pertains to a small width in relation to the length of the confidence interval.
sample size
confidence interval
population
narrowness of the interval
What is the absolute difference between the upper confidence limit and lower confidence limit?
confidence interval
degree of freedom
expected value
length of confidence interval
Find the length of confidence interval: UCL = 0.996, LCL = 0.436.
0.560
0.872
1.432
1.992
What is the LCI when 0.205 < p < 0.650?
0.205
0.445
0.650
0.855
What is a/2 when the confidence level is 90% ?
0.05
0.10
0.20
0.50
Find the length of confidence interval given the ff. data: σ=0.5, 𝑛=50, confidence level=95%
0.5000
0.0707
0.2772
1.9600
What is the confidence level if a/2 = 0.05 ?
90%
95%
99%
99.95%
Confidence intervals measure the degree of uncertainty or certainty in a _________ method.
Confidence
Lottery
Sampling
z-score
Find the length of confidence interval, given the ff. data: s = 4.2, n= 10, confidence level = 99%
17.64
8.633
6.500
1.328
