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Using hypothesis tests for 2 means: use of t distribution answer the following:
Sam's burgers owner wants to compare sales per day at two branch offices. The average number of sales per day in two branches. The average number of sales for 10 days selected at random on the north side of the field was 83.55, with a standard deviation of 10.50. For a random sample of 12 days in the branch of the south, the sales number was 78.8 with a category of 14.25. With a level of significance of 0.05, is there any difference in the average number of hamburgers sold in the two branches? What is the p-value?
What does it mean to have the first and second quartiles so close together, while the second to third quartiles are far apart?
For the data in given Table, perform the paired T test for means using the weights for the east and south sides of the trees. Verify that the p-value is 0.09.
Determine whether the following definitions are stipulative, lexical, precising, theoretical, or persuasive.- "Assault" means, for legal purposes, an intentional and unprivileged act resulting in the apprehension of an immediate harmful or offensiv..
The pennstate2 dataset on the companion website includes heights and the total number of ear pierces for each person in a sample of college students.
Is the school district correct in assuming the girls are equal in performance to boys. They are 95% sure their assumption is correct.
Unknown to the purchasing manager, the drills on the truck require an average of 295 watts, with a standard deviation of 12 watts. Stating any additional assumptions you are using, find the probability that the truckload of drills will be rejected..
in the following problem check that it is appropriate to use the normal approximation to the binomial. then use the
Find the probability that on any given day the car will get more than 26 miles per gallon when driven in the city.
Determine the average number of parts waiting to be worked on, the percentage of time the operator is working, and the percentage of time the machine is idle.
Find a quantity of interest to you and look up its value on the Internet or in your library for at least 10 firms in each of at least three industry groups.
the cranston hardware company is interested in estimating the difference in the mean purchase for men customers versus
To test the effectiveness of a new studying strategy, a teacher randomly divides a sample of 8 students into tow groups, with n = 4 in each group.
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