Blog

Fill in the blank. To receive credit, you must show all your work and submit in Final Exam Part B. Estimate the area under the graph of from x = 1 to x = 5 using left endpoints and four rectangles. a. Sketch the four rectangles. Rough Sketch without details b. The area is [a].  Do not give answer in decimals.

Choose the correct answer. To receive credit, you must show all your work and submit in Final Exam Part B. On your paper, you will explain how you chose your answer. Which is the best graph of f'(x) for the given graph f(x)? Graph A                            Graph B                    Graph C    

Essay Question Instructions: Make sure you show all work on the five 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.        

A supplier of digital memory cards claims that no more than 2% of its cards are defective.   A customer took a random sample of 200 cards and found that 5 were defective.  What is the proper hypotheses to test the customer’s claim that the rate is different?

Essay Question Instructions: Make sure you show all work on the five 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.    

Given the following Movies relation: Write the SQL queries to answer the following:  1) Find the Title and StudioName of movies released in the year 2010 and have the genre as ‘Sci-Fi’ 2) Find the StudioName of all studios located in Los Angeles. 3) Find the Title of movies that start with the word “Jurassic” and end with exactly five characters. Use pattern for this question. (Do not use % for this question)  4) Find the Title, Year, and Genre of all movies that are not of genre Romance. Use a pattern to exclude the Romance genre.

Essay Question Instructions: Make sure you show all work on the five 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 192 lbs with a standard deviation of 23.4 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 90% 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.    

Given the following two relations R and S as Sets with the following records   Perform a cartesian product operation between R and S.  You have to show the final resulting relation here on canvas. Scratch papers will be collected and discarded after the exam. 

Essay Question Instructions: Make sure you show all work on the five 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.    

Select all the statements that are False.