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In given problem, suppose the possible values for x are now 0, 2, 4 with the same probabilities as before. Will the standard deviation increase, decrease, or stay the same? Verify your answer.
Problemif the possible values for x are 1, 2, 3, 4, 5 with probabilities .2, .1, .1, .5, .1, respectively, what are the population mean, variance and standard deviation?
assume that the paired data came from a population that is normally distributed. using a 0.05 significance level find
Find the probability that all 3 ignition systems are good.d- which is better: the answer from part (b) or the answer from part (c)? why?
For a random sample of 36 items and a sample mean of 211, compute a 95% confidence interval for µ if the population standard deviation is 23.
What is the loss on each remaining policy for the second year, assuming All of the healthy policyholders at age 51 lapse the policy at that time, and none of the unhealthy ones do.
the weights of ripe watermelons grown at mr. smiths farm are normally distributed with a standard deviation of 2.7 lb.
a hotly disputed proposition x will be on the ballot in november elections. a poll of n1 100 people shows that p1 50
To develop a compensation plan designed to eliminate pay inequities, a sample of benchmark jobs are evaluated and assigned points, x, based on factors such a\ responsibility, skill, effort, and working conditions.
A geologist collects hand-specimen sized pieces of limestone from a particular area. A qualitative assessment of both texture and color is made with the following results. Is there evidence of association between color and texture for these limest..
the wayne manufacturing company purchases a certain part from suppliers a b and c. suppler a supplies 65 of the parts b
we have studied a new test for hepatitis c in laboratory situations. we know that if a person really has hep-c the test
A data set consists of 83 observations. How many classes would you recommend for a frequency distribution?
weights of pacific yellowfin tuna follow a normal distribution with mean weight 68 lb and standard deviation 12 lb. a
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