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A member of Congress wants to determine her popularity in a certain part of the state. She indicates that the proportion of voters who will vote for her must be estimated within plus or minus 2 percent of the population proportion. Further, the 0.95 degree of confidence is to be used. In past elections, the representative received 40 percent of the popular vote in that area of the state. She doubts whether it has changed much. How many registered voters should be sampled?
a.864 b5200 c.2305 d.2000
A company producing a standard line and a deluxe line of dishwasher has the following time requirements (in minutes) in departments where either model can be processed
A ski shop manager claims that the average of the sales for her shop is $1800 a day during the winter months. Fifty winter days are selected at random
prevent coronary artery vasoconstriction and the attendant reduction in blood flow to the heart and mechanical function.
The following are quality control data for a manufacturing process at Kensport Chemical Company. The data show the temperature in degrees centigrade at five point in time during a manufacturing cycle.
It is known from previous studies that the population variances are 4.1 and 5.0 respectively. Using a level of significance of .05, is there evidence that the first year female high school teachers are receiving lower salaries? Fully explain your ..
Define a game and prepare the odds of winning. The game could be a card game with two cards or a dice game. Use MS-Excel (if possible) to solve this problem
Compute the mean and standard deviation of the scores and use these for the calculations below. Show your calculations on the back of his page.
Calculate the population mean margin of error for a 90% confidence interval when sigma is 4 and sample size is 36. Standard IQ test has mean of 98 and standard deviation of 16.
Find the probability that the student 's test score is more than 39.8. Find the probability that the student's test score is between 33.5 and 41.9.
When such digits are randomly generated, what is the distribution of those digits? Given such randomly generated digits, what is a test for "goodness-of-fit"?
Suppose the time necessary to process an application for a license plate for a newly purchased vehicle is normally distributed with mean of 6 minutes and standard deviation of 1.5 minutes.
The Dean of Students believes that the costs are greater this semester. What is the test value for this hypothesis?
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