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Describe the distribution of sample means (shape, expected value, and standard error) for samples of n=36 selected from a population with a mean of µ=100 and a standard deviation of σ=12.
Suppose a coin is flipped and a die is rolled. Let E1 denote the event "the coin shows a tail", let E2 denote the event "the dies shows a 3", and let E3 denote the event "the coin shows heads and the die shows an odd number".
Testing equality of two means - difference in performance of the two gasolines and difference in gasoline mileage output
Let the probability of a decreasing employment be 0.6 and the probability of a positive economic trend 0.5. Further, assume that the probability of a decreasing employment given a negative economic trend is 0.7.
Computing relative frequencies in a contingency table and a survey of a sample of 347 people is conducted. The survey's respondents are classified according to their political affiliation and their opinion on a bill.
A company has just manufactured 1295 CDs, and 492 are defective. If 10 of the CD's are randomly selected for testing, what is the probability of the entire batch will be accepted
If you suppose returns follow normal distribution, which investment would give better chance of getting at least a $40MIL return and describe why.
What is the OR of getting cancer fora late child birth woman compared to an early first birth woman?
I have been asked to suppose that faculty at my college are assigned overload courses hence additional compensation beyond the required contract hours based on seniority.
The National Highway Association is studying the relationship between the number of bidders on a highway project and the winning (lowest) bid for the project.
Compute the marginal frequencies. (List the totals for the age groups and localities). What percent of the urban dwellers are over 50? What percent of the Over-50 residents live in rural areas?
The results for college x was a mean of 5 hours and an estimated population variance of 2 hours: for college y, m= 4, s 2 =1.5; and for college Z, M= 6, s 2 =2.5 what should you conclude? Use the .5 level.
The sample mean price is computed from the prices at these gas stations. What is the probability that the sample mean price falls within a nickel of the State's overall mean price? i.e between 3.09 and 3.19.
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