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The 70-year long-term record for weather shows that for New York State, the annual precipitation has a mean of 39.84 inches and a standard deviation of 4.27 inches. The annual precipitation amount has a normal distribution. (Give your answers correct to four decimal places.)
(a) What is the probability that next year the total precipitation for New York State is more than 49.6 inches?
(b) What is the probability that next year the total precipitation for New York State is between 41.5 and 49 inches?
(c) What is the probability that next year the total precipitation for New York State is between 30.7 and 38.2 inches?
(d) What is the probability that next year the total precipitation for New York State is more than 36 inches?
(e) What is the probability that next year the total precipitation for New York State is less than 45.4 inches?
(f) What is the probability that next year the total precipitation for New York State is less than 31.6 inches?
How to get original X variable in terms of the variance-covariance matrix for the regression coefficients pertaining to the transformed x variable? Y^=b0+b1x+b11x^2, x=X-mean(X), we get b0'=b0-b1mean(X)+b11(X^2),b1'=b1-2b1mean(X), b11'=b11
Prepare a power curve for this decision rule
For the following data, determine whether or not right-hemisphere damage results in significantly reduced performance on the spatial skills task. Test with alpha set at .05 with one tail. The data are as follows:
Is there evidence of difference in mean life of bulbs produced by the two kinds of machines. What is your conclusion?
A Myrtle Beach resort hotel has 120 rooms. In the spring months, hotel room occupancy is approximately 75%. What is the probability that at least half of the rooms are occupied on a given day?
farnum 1994 discusses a chrome plating process. small electric currents are run through a chemical plate that contains
Use the .05 level. (a) Use the steps of hypothesis testing, (b) figure the effect size for the study; and (c) explain your answers to (a) and (b) to someone who has never had a course in statistics.
In Dallas some fire trucks were painted yellow (instead of red) to heighten their visibility. During a test period, the fleet of red fire trucks made 143, 348 runs and had 20 accidents, while the fleet of yellow firetrucks made 135,035 runs and had 4..
We are establishing a quality control program for a process and need to establish the mean and standard deviation for the process. The first 10 batches had samples of size 5 taken.
for University Y, M = 4, S2 = 1.5; and for University Z, M = 6, S2 = 2.5. What should you conclude? Use the .05 level. (a) Use the steps of hypothesis testing, (b) figure the effect size for the study.
What are some differences between discrete and continuous data? Is the measurement of money continuous or discrete? Explain. Can discrete data be analyzed using a normal distribution? Why or why not?
Which of the following is most likely a parameter as opposed to a statistic? The average score of the first five students completing an assignment
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