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A researcher wants to perform a hypothesis test to determine whether the mean length of marriages in california differs from the mean length of marriages in texas. Identify the variable for the proposed hypothesis test. (select corresponding letter)
a. Length of marriage
b. Difference between mean length of marriages in california and mean length of marriages in texas
c. Percent of marriages ending in divorce
d. State
q1. consider an investment portfolio of 50000 in stock a and 50000 in stock b. the expected value of a is 9.5 and b is
q1 a researcher suggests that male nurses earn more money than female nurses. a survey of 16 male and 20 female
Calculate the test statistic. Determine the p-value of the test-statistic.
In order to determine whether or not a driver's education course improves the scores on a driving exam, a sample of six students were given the exam before and after taking the course. The results are shown below:
Quality control engineer has been checking output by almost continuous sampling as abnormal condition began. Determine the probability that in sample of 10 pieces.
A month later, the reading skills of all 100 students are assessed to determine whether the program was successful. What are the two populations of interest in this study?
Using given data table, find out midpoint for class with greatest frequency?
in the linear programming formulation of the shortest route problem there is one constraint for each node indicatinga.
Employees of MNM Corporation are about to undergo a retraining program. Management is trying to determine which of three programs is the best.
a^2 + b^2=c^2 + d^2 where a,b,c,d are real numbers(describe equivalence cl). For a pair of fractions a/b and c/d define a/b ~ c/d if ab=cd(same here)
The following data refers to gross earned income, in thousands of dollars per year, and level of taxation on that income.
A grocery store manager discovers that on any given weekend 70% of the customers sales amount to more than $100. What is the probability that the first 2 sales will be over $100?
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