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Suppose that monthly rental rates for unfurnished one-bedroom apartment in Ann Arbor, Michigan, are approximately normal in distribution, with a mean of $750 and a standard deviation of $150.
a) What proportion of the rental rates is at least $1000 per month?
b) What proportion of rates is less than $600 per month?
c) What proportion of rates is between $500 and $1000 per month?
To find out the alternate hypotheses also critical value. A truck dealer claims where a new model will give trouble free service for at least 15,000 miles.
Compute the mean of the sampling distribution? Compute the standard deviation of sampling distribution?
For each problem, compute a Welch F-statistic and determine whether or not significant differences exist among the treatment conditions.
In a market study for Target, a researcher found that 70% of customers are repeat customers. If 14 customers are selected at random, find the probability of getting.
what is the probability of obtaining at least 6 cases in this class if the nationwide rate holds True?
Operations manager thinks that only 10% of room service orders must take longer than 25 minutes if hotel has good customer service. Does hotel room service fulfil this goal?
P(A 1 )= .20, P(A 2 ), and P(A 3 )= .40. P(B 1 I A 1 ) = .25. P(B 1 I A 2 ) = .05. P(B 1 I A 3 )=.10. Use Bayes' theorem to determine P(A 3 I B 1 )
The student body of a large university comprises 60% female students. Elucidate what is the probability that the students in the sample exactly two are female?
Draw a tree diagram depicting the sample space outcomes for this experiment.
Given following financing project being considered by venture film, determine critical path probability of completion by 17 weeks.
At the .01 significance level can we conclude the mean age is more than 8.4 years for the cars of university students? What is the p-value?
Decision making using the Transportation method.
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