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1. An apartment building has the following apartments:
1 bedroom
2 bedroom
3 bedroom
1st floor
3
1
2nd floor
2
3rd floor
4
If an apartment is selected at random, what is the probability that it is on the 2nd floor or has 3 bedrooms?
2. An apartment building has the following apartments:
0
If an apartment is selected at random, what is the probability that it is not a 2 bedroom apartment on the 2nd floor?
When the level of confidence and sample size remain the same, a confidence interval for a population proportion π will be __________ when p(1-p) is larger than when p(1-p) is smaller.
State along statistical certainty there is a difference among the population proportions of those favoring Statement.
A professor of math refutes the claim that the average student spends 3 hours studying for the midterm exam. Which hypothesis is used to test the claim?
The mean amount purchased by a typical customer at Churchill\'s Grocery Store is $23.50 with a standard deviation of $5.00. Assume the distribution of amounts purchased follows the normal distribution. For a sample of 50 customers, answer the foll..
A company wants to know if minorities are more likely to be in certain job categories than others. Their data base codes employees 1 for clerical, 2 for custodial, and 3 for manager. A logistic equation was fit to the data with SPSS.
Use the marginal probabilities of school quality, school cost or convenience, and other to comment on the most important reason for choosing a school.
An automobile insurance company estimates the following loss probabilities for the next year on a $25,000 sports car:
The choices are to be designated by the letter a, b, c, d, and e. The professor wishes to use a random-number table to determine which letter choice should correspond to the correct answer for a question. Using the number correspondence 1 for a, 2 fo..
Five test vehicles of each kind were crashed, with results given below. Research question: Are mean crash damages the same for these 3 vehicles?
Create a 90% confidence interval for proportion of all kernels that would not pop.
In the real world, given null hypothesis is false; but the collected data lead to the null hypothesis being accepted. That is, the data lead to a failure to reject null hypothesis.
The simple coefficient of determination is the proportion of total variation explained by the regression line.
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