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Based on the 2x2 contingency table posted below calculate the chi square test to see if the result rejects the null hypothesis. You can calculate this long hand or use a standard calculator such as found at this site. State your opinion as to the significance of your findings in the module 8 discussion area.
Consider a large population with μ=70 and σ=10. Assuming nN≤0.05, find the mean and standard deviation of a sample mean, x¯, for a sample size of 19.
Find the probability that the number who consider themselves baseball fans is (a) exactly eight, (b) at least eight, and (c) less than eight.
Solve the equations using linear algebra
The weight of the oranges, in pounds (1 pound = 16 ounces) is a random variable with standard deviation
Assume men's weights are normally distributed w/ a mean of 172 lb. and a s.d. of 29lb.
drake marketing and promotions has randomly surveyed 200 men who watch professional sports. the men were separated
Assume a steady smoker spends on average $20 with a standard deviation of $5 per week on cigarettes. What is the probability that a sample of 100 steady smokers spend between $19.50 and $21?
baby talk magazine reported that the mean time a mother spends changing diapers a day is 15.1 minutes. a sample of 12
explain clearly and in detail why a person that simultaneously flips 1023 pennies in the air will nevertheless
Experience has shown that the standard deviation of the bounce is .30. If X = 1.70, and assuming normality, what is a .90 confidence interval for the average bounce?
A mean of 45 months and a standard deviation of 8 months. if a random sample of 600 batteries is selected, how many batteries would weigh last more than 48 months?
Suppose the regression equation that has been used to estimate the value of existing homes is as follows; Interpret the meaning of the slopes of this equation.
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