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Procter & Gamble is considering three possible capital investment projects. The projected returns depend on the future state of the economy as given here.
a. Calculate each project's expected return, variance, and standard deviation.
b. Rank the projects on the basis of (1) expected return and (2) risk. Which project would you choose?
PROJECTED RETURNState of the Probability ofEconomy Occurrence 1 2 3Recession 0.1 9% 3% 15%Stable 0.7 13 10 11Boom 0.2 17 22 5
In a sample of 210 men, 35 prefer sugar free soft drinks. In a sample of 220 women, 42 prefer sugar free soft drinks. Using a significance level of 0.05, test whether women prefer sugar free drinks more than men. Calculate the p-value.
As it is a 2 × 2 table, try also two-tailed two-sample z test for π 1 = π 2 and verify that z 2 is same as your chi-square statistic. Which test do you prefer? Explain why?
Suppose the time spent by a randomly selected student who uses a terminal connected to a local time-sharing mini-frame computer facility. What are the values of alpha and beta?
Construct a 95% confidence interval for the proportion and calculate the P value for the given test.
Three different methods for assembling a product were proposed by an industrial engineer. To investigate the number of units assembled correctly with each method
At the time she was hired as a server at the Grumney Family restaurant, Beth Brigden was told, "You can average more than $20 a day in tips.
What is the difference between evaluation and simplification of an expression? How does a term differ from a factor?
The mean area of several thousand apartments in a new development is advertised to be 1250 sq. ft. An engineer measured a random sample of apartments: 1244 1245 1242 1245 1237 1245 1246 1232
A game company that manufactures a dart game that dispenses tickets has been asked to put a business plan together for a customer who wishes to buy the game.
We say that two things have a positive relationship if they move in the same direction, or as one thing increases, so does the other. Or if one thing decreases, so does the other.
In this paragraph, be sure to make it clear how you handled the issue of conducting three planned comparisons. Also provide the ANOVA summary table for these results.
What is the relationship between pretest scores and final exam scores after controlling for cumulative GPA? He also wants to know about the relationship between pretest scores and final exam scores.
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