1- A strong linear relationship (r = 0.97) exists between the two variables x and y in the table. The equation of the least squares line is ŷ = 15.75 – 0.55x. For what values of x should we use this equation to make predictions? x 5 7 8 10 11 12 y 5.5 […]
· One thousand people are enrolled in a 10-year cohort study. At the start of the study, 100 have diagnosed CVD. Over the course of the study, 80 people who were free of CVD at baseline develop CVD. 1. What is the cumulative incidence of CVD over 10 years? Cumulative Incidence 10 Years […]
Consider the following hypothesis test. H₀: π ≥ 0.55 H₁: π < 0.55 Compute the test statistic and the p-value for the following three cases. 14 n = 300 p̅ = 0.51 α = 0.05 a p-value = 0.0823 Conclude that the population proportion is less than 0.55. b p-value = 0.0823 Conclude that the […]
Harris Mutual Fund invests primarily in technology stocks. The price of the fund at theend of each month for the 12 months of 2009 are: Month Mutual Fund price Jan […]
Please show all work for this quiz and explain your derivations. Lack of step-by-step work will not be credited. Partial credit will be given for step-by-step description of answer. In your own words, describe the meaning of average cost. You normally buy a crate of wine for $75. One crate has 6 bottles of wine. […]
4. Were Al Zink’s actions that of someone trying to be an invisible sponsor? Al Zink actions make it obvious that he is trying to be an invisible sponsor, though they are many reasons for him to take that end. Al Zink not responding to Fred’s requests in the fear of decision making and attempts […]
Inequalities Using Multiplication and Division 1. 2x + 5 > -5 2. -5x – 2< 5 3. -10x – 4 <= – 5 4. 6x + 2 > – 2 5. 4x + 3 > -28 6. -3x – 3 <= 15 7. -7x – 5 <= 21 8. […]
Explain the two primary approaches the government uses to reduce the number of human behavior-related deaths. What are other approaches the government can use to reduce mortality rates due to human behavior? PLEASE EXPLAIN WHETHER YOU AGREE WITH MY CLASSMATE ANSWER TO THE ABOVE QUESTION AND WHY? (A MININUM OF 125 WORDS) CLASSMATE’S POST […]
A small, family-owned coffee shop does a brisk business every weekday morning. Customers arrive at an average rate of 16 per hour. There is only one server and she can serve a customer in an average of 3 minutes. What is the probability that there are at least 5 customers at the coffee shop? Answer […]
Use the frequency distribution table below showing a sample data set for 10 students on a test with a maximum score of 20 to find the standard deviation of the scores. (Round answer to one decimal position.) Score Frequency Midpoint Midpoint x Frequency Midpoint squared x Frequency 1 – 5 4 6-10 3 […]
