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Unisys maintains a hurricane database which provides information on hurricanes in the Atlantic/ Caribbean/Gulf of Mexico and the Eastern Pacific Ocean. Unisys maintains a hurricane database which provides information on hurricanes in the Atlantic/ Caribbean/Gulf of Mexico and the Eastern Pacific Ocean. Maximum wind speeds in knots for a sample of hurricanes over the past four hurricane seasons are shown (Unisys weather website, April 2009). Atlantic/Carribean/Gulf of Mexico Eastern Pacific Ocean Storm Max Wind Speed Storm Max Wind Speed Frances 125 Darby 105 Jeanne 110 Frank 75 Lisa 65 Isis 65 Emily 135 Hilary 90 Ophelia 80 Max 70 Rita 150 Bud 110 Wilma 150 Daniel 130 Ernesto 65 Sergio 95 Florence 80 Cosme 65 Helene 105 Flossie 120 Dean 145 Henriette 75 Karen 60 Ivo 70 Use a .05 and test to determine whether the distribution of hurricane wind speeds is the same for these two regions. What is your conclusion?
The Normal distribution with mean 130 gallons and standard deviation 12 gallons. On a randomly selected day, the probability that the store sells at least 154 gallons is?
Set up the null and alternative hypotheses to test whether the proportion of MBA students who expect to stay at their first job five years or more is less than one-fourth of all U.S. MBA students.
A female offspring has no chance of inheriting the disease. Further suppose that 51.3% of births are male. What is the probability that a randomly chosen child will be affected by the disease?
What is the probability that the person thinks that "Made in America" ads boost sales and uses social media online?
The Federal Government is stepping up efforts to reduce average response times of fire departments to fire calls. The distribution of mean response times to fire calls follows a normal distribution with a mean of 12.8 minutes and a standard deviat..
Suppose that the risk of allergies for the children of nonsmokers is 0.15. What is the risk of allergies for the children of smokers?
At the .01 significance level can we conclude the mean age is more than 8.4 years for the cars of university students? What is the p-value?
State the alternate hypothesis for this study? What critical value should be used to determine the rejection region? Use the 1 proportion Z-test.
Solve the following confidence interval and interpret your results. Explain how you arrived at your result. Use Excel to show work if necessary.
Construct a 90 percent confidence interval for the proportion of all kernels that would not pop.
Binomial distribution to find out the mean also standard deviation. Variance and standard deviation of a lot of 300 calculators.
The shell thicknesses of the eggs produced by a large flock of hens follow approximately a normal distribution with mean equal to 0.38 mm and standard deviation equal to 0.03 mm. Find the 95th percentile of the thickness distribution.
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