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I Which of the following statements defines the 75th percentile value for a data sample? The value such that 25% of the sample observations are larger than this value, and 75% of the sample observations are smaller than this value. The value that is 75% of the largest observation in the sample. The value such that 75% of the sample observations are larger than this value, and 25% of the sample observations are smaller than this value. The value that is 25% larger than the sample mean

I Which of the following statements defines the 75th percentile value for a data sample? The value such that 25% of the sample observations are larger than this value, and 75% of the sample observations are smaller than this value. The value that is 75% of the largest observation in the sample. The value such that 75% of the sample observations are larger than this value, and 25% of the sample observations are smaller than this value. The value that is 25% larger than the sample mean

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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I Which of the following statements defines the 75th percentile value for a data sample? The value such that 25% of the sample observations are larger than this value, and 75% of the sample observations are smaller than this value. The value that is 75% of the largest observation in the sample. The value such that 75% of the sample observations are larger than this value, and 25% of the sample observations are smaller than this value. The value that is 25% larger than the sample mean 'JA random sample of 200 students from first year medical students yielded a mean undergraduate GPA of 3.85 and standard deviation 0.35. If a larger sample of 500 students was taken from the sample population, which of the following would be true? The mean undergraduate GPA of the larger sample would be systematically larger than the sample of 200 students. The sample standard deviation of the larger sample would be systematically larger than the sample of 200 students. The mean undergraduate GPA and the standard deviation of the larger sample would be systematically smaller than the sample of 200 students. None of the above
Transcribed Image Text:I Which of the following statements defines the 75th percentile value for a data sample? The value such that 25% of the sample observations are larger than this value, and 75% of the sample observations are smaller than this value. The value that is 75% of the largest observation in the sample. The value such that 75% of the sample observations are larger than this value, and 25% of the sample observations are smaller than this value. The value that is 25% larger than the sample mean 'JA random sample of 200 students from first year medical students yielded a mean undergraduate GPA of 3.85 and standard deviation 0.35. If a larger sample of 500 students was taken from the sample population, which of the following would be true? The mean undergraduate GPA of the larger sample would be systematically larger than the sample of 200 students. The sample standard deviation of the larger sample would be systematically larger than the sample of 200 students. The mean undergraduate GPA and the standard deviation of the larger sample would be systematically smaller than the sample of 200 students. None of the above
i Which of the following is true about 8, the sample mean? The sample mean, &, tends to decrease in value with increasing sample size. The sample mean, &, tends to increase in value with increasing sample size. The sample mean, &, will always equal the underlying population mean. The sample mean, X, is the best estimate of the underlying population mean, based on the sample data. TVhe distribution of GPA taken from a random sample of 20o first year medical students left skewed distribution. If a sample of 500 students were taken, how would the distribution differ? The distribution of GPA from the larger sample would also be left-skewed, but would be more filled in', i.e. more densely populated with data points. The distribution could be left skewed or right skewed, since the skewness does not systematically increase or decrease based on sample size alone. The distribution of 500 students would be less skewed than the sample of 200 students. The distribution of 500 students would be more symmetric than the sample of 200 students.
Transcribed Image Text:i Which of the following is true about 8, the sample mean? The sample mean, &, tends to decrease in value with increasing sample size. The sample mean, &, tends to increase in value with increasing sample size. The sample mean, &, will always equal the underlying population mean. The sample mean, X, is the best estimate of the underlying population mean, based on the sample data. TVhe distribution of GPA taken from a random sample of 20o first year medical students left skewed distribution. If a sample of 500 students were taken, how would the distribution differ? The distribution of GPA from the larger sample would also be left-skewed, but would be more filled in', i.e. more densely populated with data points. The distribution could be left skewed or right skewed, since the skewness does not systematically increase or decrease based on sample size alone. The distribution of 500 students would be less skewed than the sample of 200 students. The distribution of 500 students would be more symmetric than the sample of 200 students.
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