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Question: The pricing schedule for labor on a service call by an elevator repair company is $150 plus $50 per hour on site.
a. Write down the linear equation that relates the labor cost y to the number of hours x that the repairman is on site.
b. Calculate the labor cost for a service call that lasts 2.5 hours.
a sample of 25 novels has a standard deviation of 9 pages. find the 95 confidence interval of the population standard
Show that Simpson's paradox holds: a higher percentage of white defendants are sentenced to death overall, but for both black and white victims.
The time until a component is taken out of service is uniformly distributed on 0 to 8 hours. Two such independent components are put in series, and the whole system goes down when one of the components goes down.
Assuming that the standard deviation of stock price movements that day was 2 points and assuming stock price movements were normally distributed.
what graph can i use to display the results of the following scenario preschool students create pictures of their
A high school counselor is interested in the percentage of students who will be going to college. She randomly picks 60 students and finds that 53 will be going to college. Use a 95% confidence level to find the population proportion.
Michael Jordan makes 80 percent of his free throws. What is the probability that he will make at least six of his next eight free-throw attempts?
a. Plot the above data to choose between the linear and the exponential model.
jorge finds that his standardized z score on an iq is 2.0. what percentage of people did he score higher than?a. 98b.
For each of the following three populations, indicate what the sampling distribution for samples of 25 would consist of.
The Haines Lumber Company makes plywood for residential and commercial construction. One of the key quality measures is plywood thickness.
Use sampling with probability proportional to size, with replacement, to estimate the mean or total of a population of your choice. One example would be the average elevation of lakes on a topographic map.
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