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Q1) An automotive repair shop has find out that average service thime on automobile is 2 hours with standard deviation of 32 minutes. A random sample of 64 services is selected. Determine the probability that sample of 64 will have mean service time greater than 114 minutes
Q2) Automotive repair shop has find out that average service time on automobile is 2 hours with standard deviation of 32 minutes. Random sample of 64 services is selected. Assume the population consists of 400 services. Find out the standard error of mean.
For the mold described in (g), can you find the probability that it's COST value will exceed $150,000? If yes, obtain this probability. If no, why not?
State the null and the alternative hypotheses. Using the p-value approach, test to determine whether or not the mean age of all employees is significantly more than 40 years.
What do you find out when you perform the nonparametric statistics?
Carryout the ANOVA and, if essential, post-hoc comparisons. Conduct a graph to represent group differences, and interpret ANOVA in a paragraph written in APA style.
Write the null and alternative hypotheses you would use to test the following situation.
Determine mean and standard deviation for number of erroneous returns per batch.
Explain how many cars would required to go by the speed trap to be 99.8% sure which at least one driver will warm oncoming traffic of the speed trap.
Choose a group of 4 adults at random. What is the probability that none of them enjoy drinking beer?
What are the possible combinations of coins that Sanjay could have received in change?
Dating In Chances- Risks and Odds in Everyday Life, James Burke claims that about 70 percent of all single men would welcome a woman taking the initiative in asking for a date. A random sample of 20 single men was asked if they would welcome the woma..
Assume that demand for the upcoming weekend is normally distributed with a standard deviation of 30.
Scores on the Math Achievement Test form a normal distribution with a mean of u = 300 and a standard deviation of a = 100. What score separates the top 10% of the distribution from the rest.
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