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Imagine that your professor lost all records of students' raw scores on a recent test. However, she did record students' z scores for the test, as well as the class average of 41 out of 50 points and the standard deviation of 3 points (treat these as population parameters).
She informs you that your z score was 1.10. What was your percentile score on this test? (enter a number only, rounded to the nearest 2 decimal places
1.one characteristic of billiard balls is their elasticity - the bounce they get when striking one another. a
Using 5% level of significance, is there any difference in proportion of guests who would select the two resorts? What is your conclusion?
suppose that the hypotheses h0p.35 and hapgt.35 are to be tested. calculate the ovserved z-statistic for the sample
the manager of the eris shoe company must decide whether or not to contract a controversial sports celebrity as its
a box contains one twenty-dollar bill and four one-dollar bills. two bills are randomly chosen one at a time without
Consider a discrete-time wide sense stationary random processes whose autocorrelation function is of the form- Is the process ergodic in the mean?
Choose two of the three original variables. Draw a scatterplot with the country group of each point indicated. Comment. Generate classification rules using Linear discriminant analysis.
If you choose a customer at random, then find the probability that the customer-was new and paid in cash.
suppose that in elections a candidate says that hell get 60 of the votes in the election. the total population is 300
part -1make sure you read the output carefully. this output pertains to a set of juvenile court data looking at the
Find a 98% con?dence interval for the variance σ2 of rates of return. Use this to ?nd the con?dence interval for the population standard deviation, σ.
A random sample of 40 part time workers has a mean annual earnings of $3120 and a population standard deviation of $677. Compute the 95% confidence interval for the mean.
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