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A random sample of recent LSAT (Law School Admission Test) scores submitted by applicants to a university's law program are as listed below.
Using the 0.10 level of significance, apply the Kolmogorov-Smirnov test for normality in examining whether the scores could have come from a normally distributed population.
142 161 142 149 147 145 164 170
Critically discuss the characteristics of integer programming problems. Provide specific instances in which you would use an integer programming model rather than an LP model. Provide real-world examples.
In a study of the effects of stress on illness, a researcher tallied the number of colds people contracted during a six month period as a function of the amount of stress they reported during that same time period.
question a large department store examined a sample of the 18 credit card sales and recorded the amounts charged for
A 6-sided die is rolled and depending on the result a ball is then chosen from one of three boxes. If the roll results in a 1 a ball is drawn from box A
for a certain aptitude test it is known from past experience that the average score is 1000 and the standard deviation
Suppose a t- test is being applied to find out if the population monthly expenditure mean is less than $212. The level of significance selected is 1% and 26 accounts are sampled. What is the critical value?
With reference to Exercise 12, if n = 100, θ0 = 0.40, θ1 = 0.30, and α is as large as possible without exceeding 0.05, use the normal approximation to the binomial distribution to find the probability of committing a type II error
Two methods for training accountants are to be compared. Students are randomly assigned to one of the two methods.- Using Welch's test, would you conclude that the methods differ in terms of the average return? Use α = 0.05.
If the population mean was $1047 in the previous year, does the evidence suggest that expenditure this year has significantly changed?
In a certain country, the distribution of the number of cases of tetanus reported during a single month is Poisson with parameter lambda=6.5. If we are going to draw a sample of size 60 from this population and calculate the sample mean, what is t..
let x be the number of people in a household for a certain community. consider the following probability density for x
Two automatic dispensing machines are being considered for use in a fast-food chain. The first dispenses an amount of liquid that has a normal distribution with a mean of 11.9 ounces and a standard deviation of 0.07 ounces.
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