Essay Question Instructions: Make sure you show all work on…
Essay Question Instructions: Make sure you show all work on the four essay questions on scratch paper. Upload a PDF of your written work to the Canvas Upload module immediately after you finish the test. Most of the points are awarded based on your written work, not the final answer that you submit to each question. Essay Question 2: The PLNU is trying to determine if basketball players weigh more that baseball players. A random sample was taken of 43 basketball players and their mean weight was 196 lbs with a standard deviation of 21.4 lbs. A random sample of 59 baseball players was taken and their mean weight was 187 lbs with a standard deviation of 16.8 lbs. Give a 95% confidence interval for the mean difference in the average weights of PLNU basketball and baseball players. Be sure to show all formulas, work and numbers used ( e.g. df & critical value) . At the end of your work, write a one or two sentence summary in non-statistical language to describe what you have found, not how you found it. Your audience is people who have never had a statistics class. The PLNU is trying to determine if basketball players weigh more than baseball players. A random sample was taken of 53 basketball players and their mean weight was 196 lbs with a standard deviation of 21.4 lbs. A random sample of 62 baseball players was taken and their mean weight was 187 lbs with a standard deviation of 18.3 lbs. Give a 95% confidence interval for the mean difference in the average weights of PLNU basketball and baseball players. Be sure to show all formulas, work and numbers used ( e.g. df & critical value) . At the end of your work, write a one or two sentence summary in non-statistical language to describe what you have found, not how you found it. Your audience is people who have never had a statistics class.
Read DetailsEssay Question Instructions: Make sure you show all work on…
Essay Question Instructions: Make sure you show all work on the four essay questions on scratch paper. Upload a PDF of your written work to the Canvas Upload module immediately after you finish the test. Most of the points are awarded based on your written work, not the final answer that you submit to each question. Essay Question 3: From the stemplot given below, find the following items: 1. Min 2. Max 3. Q1 4. Q3 5. Median 6. Mean 7. Comment on the shape- ie symmetry or skewed ( which way?) and state why you think this.
Read DetailsYou would like to determine the typical revenue in a given y…
You would like to determine the typical revenue in a given year for businesses in a local community that employ less than 40 people. 37 businesses have revenues between $100,000 and $500,000. Three businesses fall outside of this range with revenues of $1,000,000, $1,400,000, and $4,200,000. Which measure of center would be best to represent the typical revenue in a given year for small businesses located in that particular community?
Read DetailsUse the following situation to answer Questions 22 to 24 The…
Use the following situation to answer Questions 22 to 24 The shelf life for yogurt cups tends to follow a symmetric, bell-shaped distribution. The average shelf life is 12.3 days with a standard deviation of 3.1 days. Using the empirical rule, approximately what percentage of newborn babies weigh between 6.1 days and 15.4 days?
Read DetailsA survey was conducted to determine the ages of the 125 peop…
A survey was conducted to determine the ages of the 125 people attending the premiere showing of the movie Superman at the Tinsel Town Theater. Some of the results of that survey are in the partial table below. Using the information provided, fill in the blanks in the table. Ages Frequency Cumulative Frequency Relative Frequency 0-19 25 [a] [b] 20-39 30 [c] [d] 40-59 [e] 100 [f] 60-79 [g] [h] 0.12 80-99 [i] [j] [k]
Read Details