Suppose we eventually plan to accumulate 50 MI cases during the period 20102015. Assume that the 24-hour
Question:
Suppose we eventually plan to accumulate 50 MI cases during the period 2010–2015. Assume that the 24-hour case-fatality rate is truly 20% during this period. How much power would such a study have in distinguishing between case-fatality rates in 2000 and 2010–2015 if a two-sided test with significance level .05 is planned?
Suppose that 25% of patients with MI in 2000 died within 24 hours. This proportion is called the 24-hour case-fatality rate.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 75% (8 reviews)
We use the power formula in Equation 732 in Chapter ...View the full answer
Answered By
Shadrack Mulunga
I am a Biochemistry by profession. However, I have explored different fields of study. My quest to explore new fields has helped me gain new knowledge and skills in Business, clinical psychology, sociology, organizational behavior and general management, and Project Management. I count my expertise in Project management, in particular, creation of Work Break Down Structure (WBS) and use of Microsoft Project software as one of my greatest achievement in Freelancing industry. I have helped thousands of BSC and MSC students to complete their projects on time and cost-effectively using the MS Project tool. Generally, I find happiness in translating my knowledge and expertise to success of my clients. So far, i have helped thousands of students to not only complete their projects in time but also receive high grades in their respective courses. Quality and timely delivery are the two key aspects that define my work. All those who hired my services always come back for my service. If you hire my services today, you will surely return for more. Try me today!
5.00+
154+ Reviews
289+ Question Solved
Related Book For
Question Posted:
Students also viewed these Mathematics questions
-
Of the 15 new MI cases in the preceding study, 5 died within 24 hours. Test whether the 24-hour case fatality rate changed from 2000 to 2010. Suppose that 25% of patients with MI in 2000 died within...
-
How much power would such a study have using a two-sided test with significance level = .05, assuming that the estimates of the population parameters in the pilot study are correct? Suppose 40...
-
Suppose 60 participants are enrolled in the main study. How much power would the study have to detect a 0.5-unit mean difference if a two-sided test is used with a significance level of .05?...
-
Hatch plc has two classes of share capital outstanding: 8%, 20 par preference and 5 par ordinary. At December 31, 2021, the following accounts were included in equity. Share CapitalPreference,...
-
The first statement that follows assigns a string to variable people, whereas the subsequent four assignments split people into various arrays. For each of these statements, draw the memory cell...
-
If you wanted to compare countries on the basis of how globalized they are, how could you construct some numerical measures that would allow a crosscountry comparison?
-
Taylor is engaged to audit Rex Wholesaling for the year ended December 31, 1999. Taylor considered internal controls over purchasing, receiving, trade accounts payable, and cash disbursement and has...
-
You have performed preliminary analytical procedures on one of your audit engagements and observed the following independent situations: 1. The allowance for obsolete inventory increased from the...
-
Explain what a Futures Contract is. What are the five important components of a Futures Contract? What assets might be underlining the assets of a Futures Contract? Identify the main advantages of a...
-
Wind and Solar Inc. (WSI) is in the business of providing electricity. The company started up in 2016. Currently, it is owned by Winifred Wind and Winston Chang. Both Winston and Winifred own 50% of...
-
Report a p-value to correspond to your answer to Problem 7.12? Cardiovascular Disease Suppose the incidence rate of myocardial infarction (MI) was 5 per 1000 among 45- to 54-year-old men in 2000. To...
-
How large a sample is needed in Problem 7.15 to achieve 90% power? Suppose that 25% of patients with MI in 2000 died within 24 hours. This proportion is called the 24-hour case-fatality rate.
-
Explain the growing importance of digital and social media marketing.
-
You are working as an analyst for a potential investor in a new wind farm. The wind farm will be located in a small electricity market. The market currently has one major generation firm and several...
-
Please use PESTEL to analyze the current business environment. In other words, what are some political/legal, economic, sociocultural, technological, and ecological trends now that are impactful for...
-
Direct labor costs Family Model Deluxe Model $72,900 $145,800 Machine hours 2,000 2,000 Setup hours 200 800 Packaging hours 50 75 The estimated overhead of $437,400 is allocated as follows: machining...
-
Make report based on productivity commission report and annual report of reject shop.(productivity commission research report- retail cost of doing business in australia september 2014 )please only...
-
A discussion of THREE separate ESG issues from Air canada company's report, one each addressing Environmental (CHAR), Social and Governance issues. Evaluate how each issue relates to the disclosure...
-
Solve the system of equations using the method of substitution or the method of elimination. If the system has no solution, say that it is inconsistent. Sx = 5y + 2 ly = 5x + 2 %3D
-
What recommendations would you make to Big Four firms to help them (1) avoid confrontations with governmental officials in an authoritarian society and (2) deal effectively with such confrontations...
-
Implement the test in Problem 14.55, and report a p-value (two-tailed)? Cancer A study was performed to compare breast cancer incidence between postmenopausal women who used PMH vs. women who did...
-
What test can be used to compare the incidence of breast cancer between the 2 groups, taking into account the time when breast cancer develops and the length of follow-up of each subject? Cancer A...
-
Estimate the 10-year incidence of breast cancer in each group? Cancer A study was performed to compare breast cancer incidence between postmenopausal women who used PMH vs. women who did not. A group...
-
1. A spotlight on a boat pictured below is 2.5 m above the water. A spotlight strikes the water at a point that is 8 meters behind the boat on the water's surface. The depth of the water is 4 m. How...
-
1. A high school athlete runs 1.00 x 102 m in 12.20 s. What is the velocity in m/s and km/h? 2. A person walks. 13 km in 2.0 h. What is the person's average velocity in km/h and m/s? 5. Suppose a car...
-
Suppose that a 0.225 m radius, 500 turn coil produces an average emf of 8800 V when rotated one-fourth of a revolution in 4.08 ms, starting from its plane being perpendicular to the magnetic field....
Study smarter with the SolutionInn App