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Bob Nale is the owner of Nale's quick fill. Bob would like to estimate the mean number of gallons of gasoline sold to his customers. Assume the number of gallons sold follows the normal distribution with a population standard deviation of 2.30 gallons. From his records, he selects a random sample of 70 sales and finds the mean number of gallons sold is 5.70. What is the point estimate of the population mean? Determine a 98% confidence interval for the population mean.
question a market survey was conducted to estimate the proportion of homemakers in ontario who would recognize the
Is there evidence that the change was successful in reducing the wait time? (use 0.05 level of significance)
question according to the statistical abstract of the united states there are 31.1 milshylions one-person households
construct an 80 confidence interval to estimate the population mean when x 125 and s 32 for the following sample
Scores are normally distributed with an average of 1500 and a standard deviation of 150 The minimum exam score necessary for applicants to be further considered for admission is?
question the time that it takes to react to the brake lights on a decelerating vehicle is critical in avoiding rear-end
The condition for the question is that the deck of cards has 52 cards and among them are 12 face cards. What is the probability of choosing 6 face cards out of 8 chosen. Thru Binomial distribution holds( meaning with replacement)
assume that the probability of a male birth is 0.5 and that the binomial distribution is applicable. determine the
the speed with which utility companies can resolve problems is very important. gtc the georgetown telephone company
3 methods, A, B, and C are available for teaching a certain industrial skill. Only one of these methods is used in teaching a particular worker.
michelle sayther is a fashion design artist who designs the display windows in front of the a large clothing store in
You want to determine whether or not an observational coding system you've created for ADHD is better as a system with 5 behavioral scales or 3 behavioral scales. What test should be run?
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