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A South American custom candy producer wants to know if the mean daily consumption of regular sugar sweetened candy eaters is less than that of artificial sweetened candy eaters. Assume the standard deviation for those regular sugar sweetened candy eaters is 1.20 candy products per day and 1.36 for those individuals eating the candy sweetened with artificial sweeteners. A random sample of 50 regular sugar candy eaters showed a mean of 4.35 items of candy per day. A sample of 40 artificially sweetened candy eaters showed a mean of 5.84 items of candy per day. Use the 0.01 significance level.
Using the appropriate statistical procedure on the SPSS, test the between group means for a significant difference.
A business owner decides to use a binomial distribution to solve one of his problems. He knows there is a 60 percent probability that he will sell one of his Red Oak floors to any customer who comes into his shop and views the wood.
The owner of a car dealership wants to determine whether there is a relation between the income level and the type of vehicle purchased in their dealership.
A company requires its secretarial employees to demonstrate his/her ability to type more than 45 words per minute in a typing test.
Find out the test statistic P-value, and critical value, and state the final conclusion. The mean IQ score of statistic professors is less than 120. Sample data: n = 46. Suppose that = 17, and the significance level is = 0.05.
Describe expected value (EV) of an investment if there is a 20% chance of realizing a return of $20,000 or a 55% chance of realizing a return of $25,000, or there could be a loss of $15,000?
What is the probability that a randomly selected automobile manufactured by the company will have a defective microprocessor?
You're considering paying $5 to buy a ticket in a local lottery. You were told that 10,000 tickets will be sold. There are 5 prizes. The first prize is $5,000, the second is $1,000, the third is $500, the fourth is $100 and the last prize is $10.
The standard deviation of the sample is 2.5 calls. Using the .05 significance level, can we conclude that the mean number of calls per salesperson per week is more than 44?
What is the 95% confidence interval estimate of the mean television viewing time per week during the 8:00 p.m. to 11:00 p.m. time period?
nterpret the meaning of the y-intercept, b(0), and the slope, b(1), in this problem. Use the prediction line developed in (a) to predict the GPA for a student a GMAT score of 600
A software company wants to determine whether there is a relationship between their three sales offices and the sales of their software products. The actual sales results are
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