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A pair of dice is rolled. What is the probability of each of the following? (Round your answers to three decimal places.)
a) the sum of the numbers shown uppermost is less than 6.
b) at least one 3 is cast.
If one person is selected at random, what is the probability that person is Female?
The Kruskal-Wallis rank test is a nonparametric replacement - The Wilcoxon rank sum test tests a null hypothesis
A bank's loan officer rates applicants for credit. The ratings can be described by a Normal model with a mean of 200 and a standard deviation of 50.
The sample information is reported below. At the .10 significance level can we conclude that there is a difference in the amounts quoted?
Solve different inventory control problems using an appropriate OR method.
Give an example of a hypothesis test. State what the Null and the Alternative hypotheses.
Confirm that these statements are accurate by finding the geometric mean rate of increase.
From her district, consisting of several hundred stores, she selects a random sample of 30 stores. For each store she gathered the following information.
One characteristic of billiard balls is their elasticity - the bounce they get when striking one another. A manufacturer of billiard balls is testing three additives to the basic plastic.
Evaluate the difference in the mean ratings and find the standard deviation of the difference in the ratings, what is the chance both children are boys?
Would the null hypothesis be accepted or rejected in this case?
The null hypothesis is to be tested at the 10% level of significance. The critical value from the table is:
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