Exam Question 7 The following table shows the number of people who developed Covid-19 in a sample of 94 total participants who developed Covid-19. Participants are organized by their reported gender and whether they received a vaccine or placebo in the trial.  Vaccine Placebo Total Male 4 42 46 Female 3 36 39 Other 1 8 9 Total 8 86 94 What is the probability of someone with a placebo developing Covid-19? To earn full credit, write your answer using probability notation, as a fraction and decimal rounded to three decimal places.  What is the probability that someone who is female and takes a placebo develops Covid-19? To earn full credit, write your answer using probability notation, as a fraction and decimal rounded to three decimal places. Given a subject is female, what is the probability that someone who takes a placebo develops Covid-19? To earn full credit, write your answer using probability notation, as a fraction and decimal rounded to three decimal places. A student answers the following question incorrectly. Explain the mistake they made and answer the question correctly (use proper notation and justify your answer with a calculation).  Question: Is it more likely to meet a man with a placebo that developed Covid-19 or a woman with a placebo that develops Covid-19? Answer: Since there are more men who received the placebo than women, you are more likely to meet a man with a placebo that developed Covid-19. What is the probability that someone who is female or takes a placebo develops Covid-19? To earn full credit, write your answer using probability notation, as a fraction and decimal rounded to three decimal places.

Prof Rea’s Exam Q5 Given below is a clickable scatterplot generated from data taken from 24 parents. What does a point on the scatterplot represent?  

Prof Rea’s Exam Question 6. A scientist takes a swab for a patient to determine if they are sick with Strep. The scientist’s null hypothesis is given as follows:  : The patient has no indication that there is any bacteria present in the culture and can therefore be deemed healthy. Describe the type I error that could occur in context.  

Prof Rea’s Exam Q3 Vaccine researchers want to know which Covid-19 vaccine result in higher rates of side effects after the second dose. They randomly survey 200 people who got the Pfizer vaccine, and 189 people who got the Moderna vaccine. Of those who had the Pfizer vaccine, 28 reported mild to severe side effects the day after receiving the second dose. Of those who had the Moderna vaccine, 21 reported mild to severe side effects the day after receiving the second dose. The researchers will test the claim that the second dose of the Pfizer vaccine results in a higher rate of side effects than the second dose of the Moderna vaccine at a 1% level of significance. Round all calculated values to three decimal places. Show all steps of a hypothesis test to earn full credit.

Prof Rea’s Exam Q2 A study found that the mean height of adult American women is 64.5 inches with a standard deviation of 2.5 inches and that the mean height of adult American men is 70 inches with a standard deviation of 3 inches. Suppose we are interested in finding the differences in means from independent random samples of adult American women and men. Research has shown that the distributions of adult height is normal. We randomly survey 25 adult American women and 22 adult American men.  a. Let

Turn your work and answer template into ONE file and save it to your device. Click the red SUBMIT ASSIGNMENT button, choose the pdf file of your completed work and answer template, then click the red SUBMIT ASSIGNMENT button again. You will see confetti when you have successfully uploaded your pdf file.  Note that Proctorio may kick you out of the quiz if you open a new window. You are permitted to open new tabs. If Proctorio does kick you out, contact them through their support chat so that they can allow you to re-enter the quiz to complete your submission. Remember that they are more likely to be able to help you with technical problems than me. It is also possible that I am not at my computer when you take the quiz.  If you are not permitted to re-enter the quiz through Proctorio support, send me your file via email immediately and include a screenshot of your conversation with Proctorio. DO NOT CLICK SUBMIT QUIZ UNTIL YOU HAVE SUBMITTED THE ASSIGNMENT AND SEE CONFETTI

1. This assessment is enabling you to demonstrate your understanding of the concepts presented in unit 7, and section 8.1. Use techniques you have learned to solve the problems on the assessment. Points will be earned primarily through the process of solving. Therefore, you will show as much work as possible and will provide justification whenever necessary. Write your favorite color on the bottom of the first page for an extra point. Use models, tables, and/or write descriptively when providing explanations.  The solutions you provide should be of your own original thought. No collaboration/discussion with anyone is permitted or use of any computer system or server, is allowed. desmos graphing and scientific calculators are permitted on this assessment, but you will be required to show how you reached your answers (especially if the directions say “show the calculation to earn credit”). Please indicate which function in desmos you used to find probabilities and/or critical values and/or sample means/standard deviations. If I suspect any part of the work is not your own, you will earn a zero on  the assessment and the activity will be reported to the college to be formally processed and permanently recorded.  Sign your name on your work and answer template to acknowledge and agree to these terms. 

Upon treatment with heat or chemicals, bacteria will _______________________.

Prof Rea’s Exam Q7 Given below is a clickable scatterplot generated from data taken from 24 parents. What is the direction of the relationship?  

Exam Question 3 The systolic blood pressure (given in mm Hg) of males has an approximately normal distribution with mean µ = 125 and standard deviation σ = 13. Label the tick marks on the horizontal axis using what you know about the normal distribution and noting that the distance between each tick mark is 1 standard deviation. Adam says that . Describe three mistakes that Adam made. Then explain to him how to fix them. Identify the systolic BPs that encompass approximately 95% of all systolic BP’s of males. Explain why.