Values sample mean and standard deviation

Reference no: EM131819110

Age at diagnosis for each of 20 patients under treatment for meningitis was given in the paper "Penicillin in the Treatment of Meningitis" (Journal of the American Medical Association [1984]: 1870-1874). The ages (in years) were as follows:

294_patients under treatment for meningitis.png

a. Calculate the values of the sample mean and the standard deviation.

b. Compute the upper quartile, the lower quartile, and the interquartile range.

c. Are there any mild or extreme outliers present in this data set?

d. Construct the boxplot for this data set.

Reference no: EM131819110

Questions Cloud

Airbus sold an aircraft to united airlines : Airbus sold an aircraft to United Airlines and billed $80 million payable in three months.

Blockbuster had very little data on their customers : Compared to Netflix, Blockbuster had very little data on their customers, or understanding of their preferences or behaviors.

Study were used to fit a least-squares : If the data from this study were used to fit a least-squares line with y = first-year college GPA and x = high school GPA, what would be the value of r2 ?

Accelerated telomere shortening in response to life stress : a. Compute the equation of the least-squares line. b. What is the value of r2 ?

Values sample mean and standard deviation : a. Calculate the values of the sample mean and the standard deviation. b. Compute the upper quartile, the lower quartile, and the interquartile range.

Distribution of scores on an exam : Suppose that the distribution of scores on an exam is closely described by a normal curve with mean 100. The 16th percentile of this distribution is 80.

Expect a positive correlation : For each of the following pairs of variables, indicate whether you would expect a positive correlation, a negative correlation, or a correlation close to 0.

Variables related to academic performance : In a study of 200 Division I athletes, variables related to academic performance were examined. The paper "Noncognitive Predictors of Student Athletes' Academic

Bush timber proposal runs counter to the record : Is there a correlation between timber sales and acres burned in forest fires? Compute and interpret the value of the correlation coefficient.

User Account

All Pages