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Suppose that the time in minutes required 10 serve a customer at a certain facility has an exponential distribution for which the value of the parameter () is unknown, and that the prior distribution of B is a gamma distribution for which the mean is 0.2 and the standard deviation is 1. If the average time required to serve a random sample of 20 customers is observed to be 3.8 minutes, what is the posterior distribution of 8?
there are ten balls in an urn. they are identical except for color. five are red four are blue and one is yellow. you
Welcome to this graduate course in statistics. No matter what your experiences and feelings about statistics are at this time, you will likely find many practical connections to life as you work through this course.
A paired t-procedure is best suited to handle which of the following situations: Comparing average salaries of accountants versus real estate agents.
Different designs SRS from Normal data, Shape of the population distribution and sample distribution Margin of error doesn"t cover all errors How small a P is convincing?
it is known that 81 of all new products introduced in grocery stores fail are taken off the market within 2 years. if a
Is there any evidence to suggest that the proportion of fireball reports that are confirmed by 2-5 witnesses is different for these two time periods? Use a = 0.05.
Experts might argue that if the agency hired people regardless of their nationality, the distribution of nationalities would be the same.
Find a 95% confidence interval for the mean price of all summer sleeping bags.
What features of the distribution can you see in both the histogram and the boxplot?- What features of the distribution can you see in the histogram that you could not see in the boxplot?
Sam Sleep researcher hypothesizes that people who are allowed to sleep for only four hours will score significantly lower than people who are allowed to sleep for eight hours on a management ability test.
Determine the probability that subscriber didn't rent the car during past 12 months for either business or personal reasons?
A comparison was made between number of cigarettes smoked in a day by a sample of females and a sample of males.
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