Stem & Leaf display.  Consider the following data set.   23  36  68 41 31 74 53 49 57 47 42  33 48   59 ​Complete the stem and leaf display, separating leaf units by commas. 2 | [2L] 3 | [3L] 4 | [4L] 5 | [5L] 6 | [6L] 7 | [7L]

Consider the following sample data set:​  3 12 7  6 5  9  1  8  2 7 a. What is the mean?  [Mean] b. What is the median?  [Median] c. What is the mode?  [Mode] d.  What is the range?  [Range] (For the last 2 questions, provide your answer to 2 decimal places.) e.  What is the variance? [Variance] f.  What is the sample standard deviation? [StdDev]

The following information is for students considering a semester abroad program: Student Identification GPA Class Country of interest Bryce 15781 3.09 Sophomore Egypt Carter 15973 3.48 Senior England Colton 24557 4.00 Junior Australia James 13357 2.98 Freshman England Sam 24553 3.55 Junior Italy Sieg 34551 3.24 Senior Germany Susan 24551 3.77 Junior France a. How many observations are in this data set? [Observations] b. Which variable(s) is/are quantitative? [Quant] c. There is one variable that could logically be changed from qualitative to quantitative. It would make the most sense to convert which variable to quantitative? [Convert]

First-time patients at the county Covid-19 Clinic are required to fill out a questionnaire that gives the health care team an overall idea of each patient’s health. The first question is: “In general, what is the quality of your health?” The patient chooses Excellent, Good, Fair, or Poor. Over the past month, the responses to this question from first-time patients were:  Fair  Good  Poor  Fair  Good  Poor  Fair  Fair  Good  Good  Excellent  Good  Excellent  Poor  Fair  Fair  Good  Fair  Poor  Good  Poor  Excellent  Good  Excellent a. Construct frequency and relative frequency distributions that summarize the responses to the questionnaire.(Round relative frequency values to 3 decimal places; Reminder we do not need preceding zeroes.) Rating Frequency Relative Frequency   Poor [PF] [PRF]   Fair [FF] [FRF]   Good [GF] [GRF]   Excellent [EF] [ERF] b.  What’s the most common response from a student to the question “How are you?”  Answer: “I’m  [HRU].” c.  Convert this data from qualitative/categorical to quantitative such that Excellent = 4, Good = 3, Fair = 2, and Poor = 1. With “health quality” as the weighted variable, what is the numerical weighted average quality of health for these first-time patients? (Provide your answer to 3 decimal places.)     [AVG]

Which of the following graphical representations best depicts the cumulative data for the Chicago Cubs problem?

Boeing manufactures two planes for long-distance travel. Below is data on these two planes and their respective annual engine maintenance cost per plane:  747 777 In production since: 1969 Avg maintenance cost = $15.8 million Standard deviation of cost = $2.7 million In production since: 1995 Avg maintenance cost = $7.5 million Standard deviation of cost = $1.5 million Boeing executives are promoting the 777 because of it’s consistent low maintenance cost. Comment on Boeing’s claim using the numbers provided; that is, use statistics in your answer.[Group1]

Consider the following sample data set:  150  310  280  370  300  472  290  320 (If not a whole number, provide your answer to 1 decimal place.) a. What is the mean? [Mean] In a box plot/five-number summary of this data,  b. What is the lower limit? [LL] c. What is the smallest value within the limits? [Small] d. What is the first quartile? [Q1] e. What is the median? [Q2] f. What is the third quartile? [Q3] g. What is the largest value within the limits? [Large] h. What is the upper limit? [UL] i. Are there any outliers? If so, what value(s) is/are outliers?     (If there are no outliers, enter 0 zero.)  [Outlier]

The Peoria Journal Star asked sportswriters across the Midwest to predict how many wins the Chicago Cubs baseball team with have this year.  In the table below, you will find the answers of the 40 sportswriters as to wins.  a. Complete the table to show the relative frequencies.  (Provide your answers to 3 decimals places; do not use preceding zeroes.)   Predicted Wins   # sportswriters predicting Relative Frequency   

Consider the following population data set.  310 371 300 472 291 320 (Provide all answers to 2 decimal places.) a. What is the z-score for the smallest observation?  [zsmall]b. What is the z-score for the largest observation?  [zlarge] c. Are there any outliers based on the z-score method? (yes or no)  [Outlier] d. If an observation had a z-score of +3.10, what would the value of that observation be?  [310Outlier]

Based on the chart, rank the samples based on the increased risk of hypercholesterolemia. (RANK FROM HIGHEST TO LOWEST RISK)   Blood sample Approximate total cholesterol (mg/dL) 1 150 2 300 3 225