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I have an assignment coming up on July 2nd that consists of 15 T/F, 15 M/C, and 10 essay questions. T/F and M/C don't require work to be shown, but the essays do. Below is an example of an essay from the last chapter of the course (should be the most difficult). I have a 7 hour window to complete. Do you have availability on this day? I wanted to ask you directly first.
Use the following results obtained from a simple linear regression analysis with 12 observations.Y ^ = 37.2895 - (1.2024)XR2 = 0.6744 sb1 = 0.2934
Interpret the Regression equation results including the intercept, slope and the Coefficient of Determination. Test to determine if there is a significant negative relationship between the independent and dependent variable at = 0.05 and 0.01 (state whether it is one-tailed or two-tailed test). Also predict Y when X equals 10 units.
The statistics professor plans class carefully so that length of his classes are uniformly distributed between 50 and 52 minutes. Determine the probability that class will be less than 50.25 minutes.
JBGHI demands a sample large enough to ensure an error of ± 2% with 90% confidence. What is the necessary sample size?
Calculate the average student score necessary for the district to retain its federal funding. You may assume that the Standard Deviation will not change. This will require some thought. Think of the z score. You will be solving for mu (average test s..
A statistics profressor plans classes so carefully that the lengths of her classes are uniformly distributed between 50.0 and 60.0 minutes. Find the probability that a given class period runs great than 50.5 minutes.
Find the critical value for a right-tailed F-test when alpha=.05 the degrees of freedom for the numerator (d.f.N.) are 15, and the degrees of freedom for the denominator (d.f.N.) are 21.
Under what conditions should you use the McNemar test? Under what conditions should you use the Kruskal-Wallis rank test?
They select every 20th person from the list until a sample of 100 is obtained. They then call these 100 people. Does this sampling plan result in a random sample? Simple random sample? Explain.
Suppose that for a particular flight involving a jumbo-jet with 265 seats, the airline sells 278 tickets. What is the probability that the airline will not have enough seats for all the ticket holders who show for the flight?
A certain state lottery awards 418 prizes; 28-$200 prizes, 120-$25 prizes and 270-$20 prizes, for every 10,000 tickets sold.
What is the expected value (expected profit) of producing an all weather tire? Of producing a high performance tire?
Calculate the probability function and the probability distribution of X and identify the space of results and the underlined X random variable
Find the z-score for each value of x = 54. (Give your answer correct to two decimal places.)
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