Exam 3: Statistical Description of Data

Shares of stock owned by seven stockholders represent a percentage of the outstanding shares.The data are shown below: Stackhulder Percentage A 0.7\% 0.7\% 17.8\% 5.1\% 4.3\% 1.8\% 2.1\% If the mean is 4.63 and the standard deviation is 5.594,what percentage of the measurements would you expect to fall between -3.748 and 13.034?

The mean is one of the most frequently used measures of ____________________.

In a positively skewed distribution,the:

Your final statistics grade will be based on your final exam score,a homework score,and a final project,each weighted according to the following table. Type Scare Waidht Exam 94 50\% Praject 89 35\% Hamewark 83 15\% Determine your final grade.

A student scores 89,72,93,and 84 on four exams during the semester and 96 on the final exam.If the final is weighted double and the four others weighted equally,what would the student's final average be?

Find the range for the following data: 9,94,48,62,11,50,and 6.

Which of the following statements is correct?

Summarize the empirical rule.

The value in the data set that occurs with the greatest frequency is known as the:

You are interested in beginning a small business enterprise and one aspect of your research is to look at the loan record for stockholders of small business corporations.A14-year record of net loans from stockholders of small business corporations (in billions of dollars)are as follows: 1.6,-0.2,1.0,1.4,-0.1,0.6,1.5,0.9,2.2,1.3,1.9,1.9,2.8,and 5.0. Calculate the mode. ____________________ billion

Sample values of 13 monthly sales figures (in thousands of dollars)are: 6,5,6,6,7,8,9,10,10,10,9,9,and 6. What is the mean sales figure? ____________________ thousand

Use the frequency distribution below to determine the mean and standard deviation of this sample. Frequency 0 5 1 13 2 38 3 26 4 10 5 8 $\bar { x }$ = ____________________. s = ____________________.

Which of the following is not a correct statement?

The following data represents the years of service for 10 employees at a particular company: 8 11 6 2 11 6 5 6 10 15 Determine the quartiles.

The difference between the mean of a data set and the individual values of that set is known as the:

Which of the following is not a measure of central tendency?

Sample data Consider the following sample data: 6,10,4,3,7,9,21,and 14. -What is the range of this data sample?

Characteristics of the population are referred to as parameters,while characteristics of the sample are referred to as statistics.

Chebyshev's Theorem states that the percentage of observations in a data set that should fall within five standard deviations of their mean is:

A sample of interest rates on unpaid credit card balances yields the following data: 13.25,13.67,13.60,13.29,12.97,12.90,12.76,12.66,12.58,12.77,and 12.91.Find the median interest rate.