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The U.S. Bureau of Labor Statistics publishes data on the benefits offered by small companies to their employees. Only 42% offer retirement plans while 61% offer life insurance. Suppose 31% offer both retirement plans and life insurance as benefits. If a small company is randomly selected, determine the following probabilties:
a. The company offers a retirement plan given that they offer life insurance.
b. The company offers life insurance given that they offer a retirement plan.
c. The company offers life insurance or a retirement plan.
d. The company offers a retirement plan and does not offer life insurance.
e. The company does not offer life insurance if it is known that they offer a retirement plan.
Identify each of the random variables as continuous or discrete.
Determine the largest village in terms of the population?
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What sample size would be needed to obtain an error of ±10 square millimeters with 99 percent confidence?
On which test did he do better compared to the rest of the class?
If computing a causal linear regression model of y = a + bX and the resultant r2 is very near zero, then one would be able to conclude that:
A student team examined parked cars in four different suburban shopping malls. One hundred vehicles were examined in each location. Research question: At α = . 05, does vehicle type vary by mall location?
The mean maximum oxygen uptake for elite athletes has been found to be 80 with a standard deviation of 8.1. Assume that the distribution is approximately normal.
The ANOVA table is given below,as well as a table of means and standard deviations for the three groups. Evaluate the t statistic for testing contrast
Compute the probability that randomly chosen student with a Master's degree majored in English or mathematics?
The mean of a standard normal probability distribution.
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