In a sample of 25 water specimens taken from a construction site, only one contained detectable levels of lead. What is the 95% confidence interval for the proportion of water specimens that contain detectable levels of lead? O (-0.0368, 0.1168) O (-0.0245, 0.1045) O (0, 0.1168) Can't calculate the confidence interval
In a sample of 25 water specimens taken from a construction site, only one contained detectable levels of lead. What is the 95% confidence interval for the proportion of water specimens that contain detectable levels of lead? O (-0.0368, 0.1168) O (-0.0245, 0.1045) O (0, 0.1168) Can't calculate the confidence interval
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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Transcribed Image Text:QUESTION 23
In a sample of 25 water specimens taken from a construction site, only one contained detectable levels of lead. What is the 95% confidence interval
for the proportion of water specimens that contain detectable levels of lead?
O (-0.0368, 0.1168)
O (-0.0245, 0.1045)
(0, 0.1168)
O Can't calculate the confidence interval
QUESTION 24
In a sample of 25 water specimens taken from a construction site, five contained detectable levels of lead. What is the 95% confidence interval for
the proportion of water specimens that contain detectable levels of lead?
O (0.0432, 0.3568)
O (0.0684, 0.3316)
(0, 0.4061)
O Can't calculate the confidence interval
QUESTION 25
A survey of 26 popular restaurants is used to estimate the mean number of kitchen employees. Assume that the number of kitchen employees is
right-skewed, which distribution should be used to construct the confidence interval?
ONeither standard normal distribution nor t distribution
Ot distribution with 14 degrees of freedom
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