8) Is there clear evidence of any difference in electrical response to light flash between uninfected and infected rat eyes (at any stage of the disease)? Explain carefully. Is there clear evidence that electrical response changes with time for an infected rat?
If one is trying to make industry by industry predictions, HO models will be misspecied if they omit TFP dierences even if TFP is uncorrelated with factor intensity. However, if one is trying to identify coecients such as those that occur in Rybczynski regressions, this will be a valid exercise if TFP is uncorrelated with […]
According to a survey, in a certain county 53% of all workers have a workplace retirement plan, 72% have health insurance, and 81% have at least one of the benefits. We select a worker at random. What is the probability he has exactly one of health insurance or a retirement plan (not both)?
Consider a binomial experiment with n = 20 and p = .70.Compute f(12) (to 4 decimals).Compute f(16) (to 4 decimals).Compute P(x 16) (to 4 decimals).Compute P(x 15) (to 4 decimals).Compute E(x).Compute Var(x) (to 1 decimal) and (to 2 decimals).Var(x)and o`
11. The distribution of raw scores on a chemistry final is approximately normal with mean of about 50 and standard deviation of about 10. What is the probability that a student will have a raw score that is more than 45? a. 0.7238 b. 0.3085 c. 0.4500 d. 0.6915 e. none of these 12. Which […]
Problem #1 (Expected Value. No need for Megastat on this one)The probability distribution for damage claims paid by the Newton Automobile Insurance Company on collision insurance follows.Payment ($)Probability0.85500.041000.043000.035000.028000.0110000.01(a)Use the expected collision payment to determine the collision insurance premium that would enable the company to break even on the policy.(b)The insurance company charges an annual rate […]
. A state meat inspector in Iowa has been given the assignments of estimating the mean net weight of packages of ground chick labeled “3 pounds.” Of course he realizes that the weights cannot be precislely 3 pounds. A sample of 36 packages reveals the mean weight to be 3.01 pounds, with a standard deviation […]
The average time for students in MUN to commute to the university from their home is claimed to be 20 minutes with standard deviation of 10 minutes. Assuming the elapsing time (X) for the student population is normal. If a random sample of size 4 is taken, the probability value of P{10 ≤ X¯ ≤ […]
I find proportion question quiet confusing, could any one just put me through, what formula to use and when?
A college professor claims that the entering class this year appears to be smarter than entering classes from previous years. He tests a random sample of of this year’s entering students and finds that their mean IQ score is , with standard deviation of . The college records indicate that the mean IQ score for […]
