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Suppose that the mean G.P.A. of a group of high school students is 3.0, with a standard deviation of 0.3. Their Math SAT scores have a mean of 500 with a standard deviation of 100. If the joint distribution is a bivariate normal with p=0.4, find the probability that a student has a Math SAT above 600, given that her G.p.a. is 3.5.
200 people were surveyed and asked to rate mayor Michael Bloombergs effectiveness towards education. The rate scale is 1 (lowest) to 10 (highest). Mayor Bloomberg's average rating was 7.50, with a standard deviation of 2
Determine the probability that we would reject null hypothesis given that it is true?
Operators are to answer telephone calls from customers in an average time of 0.1 minute or less, and either respond to or refer to the proper department within 0.5 minute.
You should address the pertinent areas of consideration.Analyze the considerations and determine their relative importance.Investigate all the possibilities of how the quantitative methods are used in the case study.
From the given polynomials, identify the polynomials of degree one. A function gives the value of C as 2 × (22/7) × r. Find C when r = 7 cm and r = 91 cm.
Using a 95% confidence interval, estimate the minimum difference between the mean postexposure attitude score and the mean preexposure attitude score. (Round your answer to 2 decimal places.).
If researcher obtains sample mean of M = 88, which combination of factors is most likely to result in rejecting null hypothesis?
the professor plots a histogram of these several proportions. Should a Normal model be used to represent the sampling distribution of the proportion of tails?
It is better to use the median rather than the mean for a distribution when:
Use multiplication of Taylor series to find the quartic Taylor polynomial about 0 for the function h(x)=(cosx)ln(1+x) evaluating the cefficients
Suppose a researcher has trained observers to rank participants according to their level of frustration when trying to solve a puzzle.
Using the 0.10 level of significance, is there evidence that the population mean is above $300?
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