(15.38) To estimate the mean score μμ of those who took the Medical College Admission Test...
| (15.38) To estimate the mean score μμ of those who took the
Medical College Admission Test on your campus, you will obtain the
scores of an SRS of students. From published information you know
that the scores are approximately Normal with standard deviation
about 6.4. You want your sample mean x¯¯¯x¯ to estimate μμ with an
error of no more than 1.1 point in either direction.
(a) What standard deviation (±±0.0001) must x¯¯¯x¯ have so that 99.7% of all samples give an x¯¯¯x¯ within 1.1 point of μμ? (b) How large an SRS do you need in order to reduce the standard deviation of x¯¯¯x¯ to the value you found in part (a)? |
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(15.38) To estimate the mean score μμ of those who took the
Medical College Admission Test...
To estimate the mean score μ of those who took the Medical College Admission Test on...
To estimate the mean score μ of those who took the Medical College Admission Test on your campus, you will obtain the scores of an SRS of students. From published information you know that the scores are approximately Normal with standard deviation about 6.5 . You want your sample mean x¯ to estimate μ with an error of no more than 1.4 point in either direction. (a) What standard deviation must x¯ have so that 99.7% of all samples give...
To estimate the mean score μ of those who took the Medical College Admission Test on...
To estimate the mean score μ of those who took the Medical College Admission Test on your campus, you will obtain the scores of an SRS of students. From published information you know that the scores are approximately Normal with standard deviation about 6.2. You want your sample mean x to estimate ,1 with an error of no more than 0.8 point in either direction. (a) What standard deviation must x have so that 99.7% of all samples give an...
To estimate the mean score of those who took the Medical College Admission Test on your...
To estimate the mean score of those who took the Medical College Admission Test on your campus, you will obtain the scores of an SRS of students. From published information you know that the scores are approximately Normal with standard deviation about 6.3. You want your sample mean & to estimate u with an error of no more than 1.3 point in either direction. (a) What standard deviation must have so that 99.7% of all samples give an x within...
To estimate the mean score of those who took the Medical College Admission Test on your...
To estimate the mean score of those who took the Medical College Admission Test on your campus, you will obtain the scores of an SRS of students. From published information you know that the scores are approximately Normal with standard deviation about . You want your sample mean to estimate with an error of no more than point in either direction. (a) What standard deviation must have so that of all samples give an within point of ? Use the...
To estimate the mean score ?μ of those who took the Medical College Admission Test on...
To estimate the mean score ?μ of those who took the Medical College Admission Test on your campus, you will obtain the scores of an SRS of students. From published information you know that the scores are approximately Normal with standard deviation about 6.2. You want your sample mean ?¯ to estimate ?μ with an error of no more than 1.4 point in either direction. (a) What standard deviation must ?¯ have so that 99.7% of all samples give an...
(15.30) It appears that people who are mildly obese are less active than leaner people. One...
(15.30) It appears that people who are mildly obese are less active than leaner people. One study looked at the average number of minutes per day that people spend standing or walking. Among mildly obese people, the mean number of minutes of daily activity (standing or walking) is approximately Normally distributed with mean 366 minutes and standard deviation 68 minutes. The mean number of minutes of daily activity for lean people is approximately Normally distributed with mean 525 minutes and...
Almost all medical schools in the United States require students to take the Medical College Admission...
Almost all medical schools in the United States require students to take the Medical College Admission Test (MCAT). To estimate the mean score μμ of those who took the MCAT on your campus, you will obtain the scores of an SRS of students. The scores follow a Normal distribution, and from published information you know that the standard deviation is 10.810.8 . Suppose that, unknown to you, the mean score of those taking the MCAT on your campus is 495495...
Almost all medical schools in the United States require students to take the Medical College Admission...
Almost all medical schools in the United States require students to take the Medical College Admission Test (MCAT). To estimate the mean score μ of those who took the MCAT on your campus, you will obtain the scores of an SRS of students. The scores follow a Normal distribution, and from published information you know that the standard deviation is 10.8 . Suppose that, unknown to you, the mean score of those taking the MCAT on your campus is 495...
Almost all medical schools in the United States require students to take the Medical College Admission...
Almost all medical schools in the United States require students to take the Medical College Admission Test (MCAT). To estimate the mean score u of those who took the MCAT on your campus, you will obtain the scores of an SRS of students. The scores follow a Normal distribution, and from published information you know that the standard deviation is 10.8. Suppose that, unknown to you, the mean score of those taking the MCAT on your campus is 495. In...
Almost all medical schools in the United States require students to take the Medical College Admission...
Almost all medical schools in the United States require students to take the Medical College Admission Test (MCAT). To estimate the mean score ?μ of those who took the MCAT on your campus, you will obtain the scores of an SRS of students. The scores follow a Normal distribution, and from published information you know that the standard deviation is 10.810.8 . Suppose that, unknown to you, the mean score of those taking the MCAT on your campus is 510510...
To estimate the mean score μ of those who took the Medical College Admission Test on your campus, you will obtain the scores of an SRS of students. From published information you know that the scores are approximately Normal with standard deviation about 6.2. You want your sample mean x to estimate ,1 with an error of no more than 0.8 point in either direction. (a) What standard deviation must x have so that 99.7% of all samples give an...
To estimate the mean score of those who took the Medical College Admission Test on your campus, you will obtain the scores of an SRS of students. From published information you know that the scores are approximately Normal with standard deviation about 6.3. You want your sample mean & to estimate u with an error of no more than 1.3 point in either direction. (a) What standard deviation must have so that 99.7% of all samples give an x within...
Almost all medical schools in the United States require students to take the Medical College Admission Test (MCAT). To estimate the mean score u of those who took the MCAT on your campus, you will obtain the scores of an SRS of students. The scores follow a Normal distribution, and from published information you know that the standard deviation is 10.8. Suppose that, unknown to you, the mean score of those taking the MCAT on your campus is 495. In...
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