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The president of Doerman Distributors, Inc., believes that 27% of the firm's orders come from first-time customers. A simple random sample of 100 orders will be used to estimate the proportion of first-time customers.
a) Assume that the president is correct and p = 0.27. What is the sampling distribution of for this study?
b) What is the probability that the sample proportion will be between .14 and .40 (to 4 decimals)?
c) What is the probability that the sample proportion will be between .19 and .35 (to 4 decimals)?
Suppose the weight of a product is normally distributed with a mean of 1.5 and a variance of 0.2. What percentage of products will have weights within +/- 3 standard deviations? Critically discuss the lower and upper limits bounding 50% of product we..
a random sample of 70 voters found that 40 were going to vote for a certain candidate. find the 99 limit for the
Two strategies over the 6-year period. Create a histogram of the final fund values. Based on your simulation results, which of the two strategies would you recommend? Why?
consider the system with components as shown below indicating their failure relationship. the component reliabilities
Find the estimated regression line, and complete the summary ANOVA table. Conduct an F test for a significant regression. Use a significance level of 0.01.
during ejection from a military airplane the pilots acceleration must not exceed 16g ig injury is to be avoided.
what is the probability of obtaining 2 heads out of 5 tosses of a coin in a binomial
What type of method was used in this study?- Can you conclude that people become more politically conservative as they get older? Why or why not?
The following table lists the annual amounts of glass cullet produced by Kimble Glass Works, Inc. Determine the least squares trend equation. Estimate the amount of scrap for the year 2005.
Refer to given Exercise. Suppose that an American woman is randomly selected. Are her age and her fertility status independent? Explain.
What are the key components needed to determine if you have a positive skewed normal distribution?
Find the minimum required sample size for estimating the average number of designer shirts sold per day to within 10 units with 90% confidence if the standard deviation of the number of shirts sold per day is about 50.
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