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A sample of 12 rooms sold last week in St. Paul, Minnesota, is selected can we conclude that as the size of the home (reported below in thousands of square feet) increases the selling price (reported in $ thousands) also increases?
A Tire company has developed a new type of tire. Extensive testing shows that the number of miles the new tire will run before wearing out is normally distrubuted with a mean of 40,000 miles and a standard deviation of 4,000 miles
In your environment (business or personal), please describe a hypothesis test related to a decision. What would be your data? What would be your null hypothesis? What would be your alternate hypothesis? What would be your Type 1 and Type 2 errors ..
Determine whether the coefficient of correlation in the population is zero. Construct and interpret confidence intervals and prediction intervals for the dependent variable, number of units sold.
Calculate the correlation and the regression equation and plot the data in the space provided.
What is the stock's value at it's highest on 15 days of the year? (Assume that there are 240 trading days in a year).
I performed a linear regression for the Population to the monthly profit, but do not understand how to use the information. And I do not understand the confidence interval estimate; how do I use and decipher the info.
Provide an example and state the Null and the Alternative hypothesis for the example in symbolic form.
Strongly support, support, no opinion, do not support, strongly do not support. The number of people in each category was recorded.
Since they will be multiplying this average by the total number of customers to get an overall forecast, they would like to accurately estimate this average with a margin of error of less than $4000.
I have been asked to suppose that faculty at my college are assigned overload courses hence additional compensation beyond the required contract hours based on seniority.
What is the appropriate set of hypotheses to test such that a possible outcome of the test would indicate;
Based on the expected value of the lottery ticket, would you pay $1 for a ticket? Round the answer to 3 decimal places. Omit the "tiny_mce_markerquot; sign in your response.)
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