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The American Automobile Association checks the prices of gasoline before many holiday weekends. Listed below are the self-service prices for a sample of 15 retail outlets during the May 2003 Memorial Day weekend in the Detroit, Michigan area.
1.44 1.42 1.35 1.39 1.49 1.49 1.41 1.461.41 1.49 1.45 1.48 1.39 1.46 1.44
1. What is the arithmetic mean selling price?
2. What is the median selling price?
3. What is the modal selling price?
Calculate a 90% confidence interval for the percentage of homes in the US that had guns at the time of survey.
For any distribution the score that separates the highest 10% from the rest of scores is called.
Use a decision tree to describe the possible strategies and the consequences (or payoffs) of each. Show your decision tree.
Evaluate the area under the standard normal curve that lies to the left of z = - 3.49 and simple random sample of size
What are the expected value and variance of the following probability distribution?
What is the probability she received 5 or more email during the same period?
To find the probability values in case of raw data, binomial, normal
Mattel Corporation produces a remote-controlled car that requires three AA batteries. The mean life of these batteries in this product is 35 hours with a standard deviation of 5.5 hours. As part of its testing program Sony tests samples of 16 batt..
The major shopping areas in community of Springdale include Springdale Mall, West Mall, and downtown area on Main Street. A telephone survey has been conducted to determine strengths and weaknesses of these areas and to find out how they fit in th..
Derive the probability distribution of the completion times - For each of the distribution in (i) above, calculate their relevant statistics. A task is known to have the following time to completion
Assume that Los Arboles had a special program in place to encourage helmet use. Elucidate to what extent did removal of the outlier improve the fit.
It is suspected that the mean turnover has changed and is not 6.0. Use the .05 significance level. State the null hypothesis and the alternate hypothesis.
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