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A petroleum company was interested in comparing the miles per gallon achieved by four different gasoline blends (I, II, III, IV). Because there can be considerable variability due to differences in drivers and car models, these two extraneous sources of variability were included as blocking variables in the following Latin square design. Each driver drove each car model over a standard course with the assigned gasoline blend using a Latin square design. However, when driver 3 was operating a model 4 car using blend II gasoline, there was a malfunction of the car's carburator that invalidated the data. This malfunction was not discovered until well after the completion of the study, and hence the data could not be replaced. The miles per gallon data are given here.
a. Run an analysis of variance by estimating the missing value. Use a = .05.
b. Make treatment comparisons by using Fisher's least significant difference, with a = .05.
Assume you have the following data: Ho: u = 2,450, S = 400, n = 100, and X = 2,300. Conduct a hypothesis test at the .01 significance level.
consider a normally distributed random variable x with mean of 8 and a variance of 4. what is the probability that x
To investigate whether female executives are experiencing pay-discrimination, a researcher samples the incomes of 300 male and 300 female executives. Which procedure would be appropriate?
determined from the test in Part (b) and test the homogeneity of the six response curves. State the conclusion of the test and give the model you have adopted at this stage.
If employee is chosen at random, determine the probability that employee is female and salaried staff? Choose the best answer from the following.
1. given that z is a standard normal variable pz gt -1.61 is ?2. if x has a normal distribution with mean 100 and
The 260 business majors and 100 students from the 180 political science majors. Does this sampling plan result in a random sample? Simple random sample? explain."
An experiment consists of tossing a pair of dice. Use the combinatorial theorems to determine the number of sample points in the sample space S.
In order to evaluate a new release of a database management system, a database admin- istrator runs a benchmark program several times and measures the time to completion in seconds. Assuming that the distribution of times is normal with mean 95 se..
describe what is meant by a binomial experiment. how do binomial experiments apply to each of the four
a carnival has a game of chance a fair coin is tossed. if it lands heads you win 1.00 and if it lands tails you lose 50
Determine the probability distribution for X defined as number of defective items drawn (Hint: You have to determine P(X=0), P(X=1) and P(X=2).
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