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Assume that stock is currently selling for $100. The change in the stock's price during the nest year follows a normal random variable with a mean of $10 and a standard deviation of $20. What is the probability (rounded to the nearest hundredth) that the stock will sell for at least $120 in a year's time?
a) .31
b) .16
c) .25
d) .35
e) .40
When modelling E(y) with single qualitative independent variable, number of 0 - 1 dummy variables in model is equal to number of levels of qualitative variable.
Describe the independent variable and the dependent variables?
Report a table of marginal means for each level of each of the three factors.
a) 95% of confidence intervals generated will include the sample mean X. b) 5% of the confidence intervals generated will include the true mean μ
Use this information to make a 95% confidence interval to evaluate true average number of copies made each day at this company.
How large a sample is needed to find the population mean within $250 at 99 percent confidence?
A brand name has a 60% recognition rate. If the owner of the brand wants to verify that rate by beginning with a small sample of 10 randomly selected consumers, find the probability that exactly 6 of the 10 consumers recognize the brand name.
At the 5% level of significance, does this result support the conjecture?
Examine the residual files and produce appropriate residual plots to examine the assumptions. Are the Level-1 residuals normally distributed? Are the level-2 residuals multivariate normal? How do you know?
The events are defined as follows: Let A be the event that the player selected has a number from 1 to 8. Let B be the event that the player selected is a guard. Let C be the event that the player selected is a forward. Let D be the event that the pla..
Write a statistical laboratory report using the guidelines in the assigned article, "How to Write a Statistical Report."
At the .05 significance level, can we conclude that the guideline is still reasonable?
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