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For the following problems, find the expected frequencies of each cell in the table, perform a chi-square test for independence, and comment on the relationship between the variables. Assume the variables are independent.
a. The contingency table shows the results of a random sample of college professors and the years of teaching at the university level.
Gender
< 1 Year
1 - 3 Years
4 - 7 Years
8 - 15 Years
Over 15 Years
Male
35
47
58
135
150
Female
53
68
128
97
54
b. The contingency table shows the results of a random sample of individuals by gender and gas mileage of vehicle owned.
1 - 15 MPG
16 - 21 MPG
22 - 28 MPG
29 - 35 MPG
Over 35 MPG
13
86
118
87
24
11
45
134
Find an equation that describes the position of point P above its rest position as a function of time. Take t = 0 to be the instant when the string is released.
A sociologist wants to determine if the life expectancy of people in Africa is less than the life expectancy of people in Asia. The data obtained is shown in the table below.
What is the probability that the rat will turn left on the second trial?
Detailed Explanation to Probability Distribution, A small bag of Skittles candies has the following assortment
An observer to a rocket launch was 1800 feet from takeoff position. The observer found the angle of elevation of the rocket as a function of time to be theta=3t/(2t+5).
what is a process in which you find the maximum or minimum value of some variable quantity
Use differentials to estimate the amount of paint needed to apply a coat of paint 0.05 cm thick to a hemispherical dome with a diameter 50m. (Answer should be in cubic meters, rounded to two decimal places.)
A client has an order for a foot soak prepared with 25% povidine iodine and the total volume of preparation is to be 1 liter. How many mls of povidine/iodine should be used?
The function is f(x)= 3x2 -8x+2 , then the problem asks me to find the tangent line at 0 and record the min or max value.
The surface area of this pyramid is 189cm squared.The area of the square base is 49cm squared. What is the area of one triangular face of the lateral surface? Show the steps of your solution and explain your work.
About 20% of the population is hopelessly romantic. If two people are randomly selected, what is the probability both are hopelessly romantic? What is the probability at least one is hopelessly romantic?
as the project manager of your company consider an investment that costs 100000 and has a cash inflow of 25000 every
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