Confidence interval for the proportion
A survey of 296 recent deliveries by Fumble Express shows that 131 were delayed. The 95% confidence interval for the proportion of delayed deliveries by is p Fumble Express
a. (109, 153)
b. (.386, .499)
c. (.368, .517)
d. (.326, .559)
Expected delivery within 24 Hours
(i) Determine the maximum potential difference among the plates such which dielectric break-down of the air between the plates does not take place? (Use Emax = 3 MV/m.)
A professor would like to use the normal distribution to assign grades such that 5% of students receive A's. If the exam average is 62 with a standard deviation of 13, what grade must be the cutoff for an A?
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Assume that the distribution of men's heights can be approximated by normal model with mean of 69 inches and standard deviation of 4 inches. Then the probability that man is shorter than 67 inches is
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