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You are trying to interpret a t-test for your multiple regression analysis. You had 10 total observations with 3 independent variables. The regression on the independent variables returned coefficients and t-stats as follows... Price coefficient: -10 and t stat is -2. Location coefficient: 0.5 and t stat is 1.995. Advertising coefficient is 200 and t stat is 1.75. Which of the following statements is an accurate interpretation of the situation when using an alpha of .10?
A) Only the price and location variables are significant.
B) Our output goes down 10 for every 1 dollar increase in price.
C) The critical value you should use is 1.943 and -1.943
D) All of the above
E) None of the above.
Is there evidence of a difference in the median performance between the two methods? (Use x = 0. 05).
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A survey found that 85% of women in a given city enjoy shopping online. Suppose you randomly selected 6 women from the city and ask them whether or not they enjoy shopping online. Find the probability that exactly 4 say they enjoy shopping online.
There are 25 students in a probability class. Assume that there are 365 days in each year, and that the birthrate is constant throughout the year.
Barbara Flynn is in charge of maintaining hospital supplies at General Hospital. During the past year, the mean lead time demand for bandage BX-5 was 60 (and was normally distributed).
How does multilinear regression analysis apply to a profession? Specify the dependent value and the set of predictors. Where would you get the data?
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