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An Associated Press story (March 8, 2006) about a survey commissioned by the American Medical Association of a nationwide random sample of 644 college women or graduates ages 17 to 35 estimated that a proportion of 0.74 of women on Spring Break use drinking as an excuse for outrageous behavior. including public nudity and dancing on tables. Find the standard error of this estimate. and interpret.
If customers arrive according to a non-stationary Poisson process with rate function λ(t) = sin(t) + 5, is the time between the arrivals an exponential distribution?
Variance of 4.2 and mean of 23.2 were calculated. Find out 95% confidence interval on mean and standard deviation. Describe any potential problems with this analysis.
Health and Nutrition Examination Survey, suppose that weights of men now are normally distributed with mean of m =172 pounds and standard deviation of s = 29 pounds.
The hypotheses are as follows: Null Hypothesis: μD ≤ 0, Alternative Hypothesis: μD > 0. From her data, the resesarcher calculates a p-value of 0.0162. What is the appropriate conclusion? The difference was calucated as (after - before).
Which of the following is NOT true regarding the normal probability distribution.
Construct a 99% confidence interval for the proportion of customers favoring underground installation.
Create a 95% confidence interval for population mean. Is it sensible that population mean is 28 weeks? give explanation for your answer.
Construction of frequency distribution table for the given continuous data.
You find that a random sample of five microwave ovens has a mean repair cost of $75 and a standard deviation of $12.50. At α = 0.01, do you have enough evidence to support the repairer's claim?
Suppose the random variable X is normally distributed with mean =50 and standard deviation =7 calculate P(X).
Explain the applications of statistics in your own field (Business Administration/Accounting) - Construct a stem and leaf display.
To find out whether two categorical variables are independent, one should use the.
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