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The manager claims that the average content of juice per bottle is less than 50oz. The machine operator disagrees. A sample of 100 bottles yields an average content of 49oz per bottle. Does this sample allow the manager to claim he is right (5% significance level)? Use the P-value approach to test the hypothesis. Assume that the population standard deviation σ = 5oz.
Find the margin of error for the 92.5 percent confidence interval used to estimate the population proportion.
At the .10 significance level, can she conclude that the mean daily expenses are greater for the sales staff than the audit staff? What is the p-value?
Calculate the Pearson correlation for these data also determine whether there is a significant correlation among attitudes for husbands also wives.
mike took clothes to the cleaners three times last month. first he brought 2 shirts and 1 pair of slacks and paid 7.47.
Travel and Transportation Airline travelers are often plagued by long delays on the tarmac waiting to take off. In April 2013 there were six flights.
ABA airlines never likes to fly a plane with an empty seat. The flight is from ATL to St. Croix can hold 200 passengers. Past data has shown
Calculate the probability that a randomly selected egg weights between 62.5 g and 68.75 g. Think of cartons of such eggs as SRSs of size 12 from the population of all eggs.
In between there is a number of complete codons. Figure out how to find the number of codons in tmp before the first stop codon.
Using the 0.05 level of signifi- cance in a two-tail test, examine whether the percentage of sample homes having a fireplace could have differed from 62% simply by chance. Determine and interpret the p-value for the test.
The production line that packages boxes of raisins at a snack food manufacturer will be considered operating properly if the average weight of the boxes of raisin is 3.5 ounces with a standard deviation of 0.3 ounces.
Time closely follows a normal distribution with a mean of 500 seconds and a standard deviation of 72 seconds. What percent of kiosk users take between 600 and 720 seconds?
Calculate a 95% confidence interval for the difference in life expectancy between Africa and Asia.
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