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Boys and Girls A couple plans to have two children.
a) Determine the number of points in the sample space of the possible arrangements of boys and girls.
b) Construct a tree diagram and list the sample space. Assuming that boys and girls are equally likely, determine the probability that the couple has
c) two girls.d) at least one girl.e) a girl and then a boy.
A researcher estimates an AR(1) model with an intercept and finds that the OLS estimate of Beta1 is 0.95, with a standard error of 0.002.
A previously used drug treatment has a mean remission time of 12.5 weeks. Does the data indicate that the mean remission time using the new drug is different from 12.5 week at a level of significance of 0.01?
Determine the probability of a positive economic trend given an increasing employment. Are employment and economic trend independent?
Solve different inventory control problems using an appropriate OR method.
Two strategies over the 6-year period. Create a histogram of the final fund values. Based on your simulation results, which of the two strategies would you recommend? Why?
What type of situation would I be able to understand how to use regression as a key driver as an influence in sales or other outcomes?
For people with a certain disease, the length of time Y spent in remission is described by the following pdf
Let X be a random variable uniformly distributed on the interval (0,1). Let Y be a new random variable defined as Y = X2. What is the probability density function of Y given by?
Suppose you compute a simple linear regression on a single sample. Then you find additional data and recompute the regression on the larger sample and that the result is an increase in the regression slope.
Test out an suitable hypothesis also state your conclusion. Make sure the suitable assumption as well as conditions are satisfied before you proceed.
A paper manufacturer has a production process that operates continuously throughout an entire production shift. The paper is expected to have a mean length of 11 inches, and the standard deviation of the length is 0.02 inches.
Assumed that the standard deviation of the difference in the mean number of drinks is 6.7 drinks.
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