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The U.S. Department of Transportation, National Highway Traffic Safety Administration, reported that 77% of all fatally injured automobile drivers were intoxicated. A random sample of 53 records of automobile driver fatalities in Kit Carson County, Colorado, showed that 36 involved an intoxicated driver. Do these data indicate that the population proportion of driver fatalities related to alcohol is less than 77% in Kit Carson County? Use = 0.05. Solve the problem using both the critical region method and the P-value method. Since the sampling distribution of is the normal distribution, you can use critical values from the standard normal distribution (Round any intermediate calculations to at least four decimal places. Round the test statistic and critical value to two decimal places. Round the P-value to four decimal places.)
One of the most important uses of a correlation is its potential use in_________
The associated standard deviations are $ 8. thousand, $ 10. thousand, and $ 2. thousand. Assuming independence of outcomes, find the mean and standard deviation (in thousands of $) of the consultant's total profit from these three projects.
Find the probability, rounded t four decimal places, that a person selected at random consumes less than 220 pound per year.
To find the probability that exactly 25 of the computers will require repair, one would use what type of probability distribution?
question there are three cards in a box. both sides of one card are black both sides of one card are red and the third
Develop two-null hypothesis tests to ascertain if there are any statistical variances in the averages of bus route times and any statistical variance among the average performance of the bus drivers. Use the following information to conduct the te..
Then, give two examples of correlation which are evaluated in a business environment and discuss the decision made by evaluating the correlation.
Illustrate the maximum number of reservations that it could accept for a flight with a capacity of 160, if it needs the probability of accommodating all reservation holders to be at least 95%.
question 1 a sample of the various prices for a particular product has been conducted in 16 stores which were selected
an incomplete frequency disribution is given below class intervals frequency 0-10 4 10-20 16 20-30 ---- 30-40 ----
Compute the two weights that give the cutoff points for the three categories.
Suppose you are working with a data set that is normally distributed with a mean of 400 and a standard deviation of 20. Determine the value of x such that only 1% of the values are greater than x. (how to find the value of x with z score)
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