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A recent study by the Greater Los Angeles Taxi Drivers Association showed that the mean fare charged for service from Hermosa Beach to the Los Angeles International Airport is $18.00 and the standard deviation is $3.50. We select a sample of 15 fares.a. What is the likelihood that the sample mean is between $17.00 and $20.00?b. What must you assume to make the above calculation?
In a study of 24 criminals convicted of antitrust offenses, the average age was 55 years, with a standard deviation of 7.6 years. Construct a 98% confidence interval of the true mean age.
Find/discover an example of statistics in the news to discuss the following statement that represents one of the objectives of statistics analysis: "Statistics helps us make decisions based on data analysis.
In the context of this scenario, what would be the consequences of making a Type I error?
Rum that were sold and the number of churches that were built. What do you think the explanation for this correlation might be?
A fever have sore throats. What's the probability that a kid who goes to the doctor has a fever and a sore throat?
Regression equation to predict the dependent variable using multiple regression analysis:
Make two different Factor Fireworks for 64 and 84. Write an equation that shows 64 as a product of prime numbers. Then use the equation to help find 54/16.
Galvanizing lines that are assumed to operate independently. What is the probability that none of the lines experiences a surface finish problem in 40 hours of operation.
Some students planned a get together, the budget for food was $500.00. Five of the students failed to come because of the distance ad therefore the cost of food for each member increased by $5.00.
A currency trader observes that in the spot exchange market, 1 U.S. dollar can be exchanged for 9 Mexican pesos or for 111.23 Japanese yen. What is the cross-exchange rate between the yen and the peso
Suppose the sample variance for 3 parts turns out to be S2 = .0005. Use a=.05 to test whether the population variance specification is being violated.
Propose a two sample z-test of a population mean and identify it as either an independent test or a dependent test.
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