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An urn contains 7 red marbles and 3 white marbles. Three marbles are drawn from the urn one after the other. Find the probability that the first two are red and the third is white.
1/40
18/41
7/40
7/10
if the random q has a continuous uniform distribution with parameters a0 and b3 find the probability that the roots of
Card holders should be sampled to meet the original requirements of the sample. Then explain the trade-offs that will occur when you lower the sample to $10,000 to meet their budget.
How would you interpret the findings of a correlation study that reported a linear correlation coefficient of -1.34? a) strong linear correlation b) weak linear correlation c) impossible, d) calculation error no linear correlation
1. a random sample of size 49 is drawn from a population with a standard deviation of 11. if only 18 of the time a
Produce the scatter plot for x3 and y3. Do you think there are any outliers?Calculate the correlation coefficient (r) for all the data points What does the p-value in your SPSS output tell you?
Use the critical values for z of 1.65 and a p level of approximately 0.10, or 10%. For each of the following values, determine if you would reject or fail to reject the null hypothesis:
Determine a 95% confidence interval for the mean efficiency of a given batch of motors. If we want to cut the confidence interval by 1/3, how many motors should be tested?
What sample size is need if the agency wants to be 90% confidence of being correct to within +/- 5 minutes? if 90% is desired, how many listeners need to be selected?
the days to maturity for a sample of five money market funds are shown here. the dollar amounts invested in the funds
Standard deviation of 12 ounces. Find the probability of randomly selecting a newborn child whose weight is less than 107 ounces.
How many branch offices were involved in the study and compute the F statistic and test the significance of the relationship at a .05 level of significance.
Given your answer to part a and a stated interest rate of 9 percent on the total amount borrowed, what is the effective rate on $400,000 actually being used?
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