Mathematics, 16.04.2020 20:39, MiddleSchool2005
The Graduate Management Admission Test (GMAT) is taken by individuals interested in pursuing graduate management education. GMAT scores are used as part of the admissions process for more than 6100 graduate management programs worldwide. The mean score for all test‑takers is 550 with a standard deviation of 120. A researcher in the Philippines is concerned about the performance of undergraduates in the Philippines on the GMAT. She believes that the mean scores for this year's college seniors in the Philippines who are interested in pursuing graduate management education will be less than 550. She has a random sample of 250 college seniors in the Philippines interested in pursuing graduate management education take the GMAT. Suppose we know that GMAT scores are Normally distributed with standard deviation σ=120. (a) We seek evidence against the claim that µ=550. What is the sampling distribution of the mean score x¯ of a sample of 250 students if the claim is true?The sampling distribution is approximately Normal, with mean =550 and standard deviation=0.48. The sampling distribution is approximately Normal, with mean =550 and standard deviation≈22.82. The sampling distribution is approximately Normal, with mean =550 and standard deviation=120. The sampling distribution is approximately Normal, with mean =550 and standard deviation≈7.59.
Answers: 2
Mathematics, 21.06.2019 18:30, nina288
Astuntman jumping off a 20-m-high building is modeled by the equation h=20-5t^2, where t is the same in seconds. a high-speed camera is ready to film him between 15m and 10m above the ground. for which interval of time should the camera film him?
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Mathematics, 21.06.2019 18:30, Snowinvain
An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?
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The Graduate Management Admission Test (GMAT) is taken by individuals interested in pursuing graduat...
Mathematics, 02.07.2019 07:30
Mathematics, 02.07.2019 07:30
Mathematics, 02.07.2019 07:30
Mathematics, 02.07.2019 07:30