3M - MS-DRG Assignment

A patient screens positive for Disease Y. The screener has a sensitivity of 60%. The best next step for the patient is most likely:     Start treatment for Disease Y   Get a diagnostic test   Take a different screening test   None of these are correct.

What is a type I error? Give an example.

MAT 240: Applied Statistics home > 7.1: Hypothesis test for a population proportion E zyBooks catalo Feedb CHALLENGE АCTIVITY 7.1.3: Hypothesis test for a population proportion. 387674.1891676.ox3zay7 Jump to level 1 A software company is interested in improving customer satisfaction rate from the 62% currently claimed. The company sponsored a survey of 184 customers and found that 122 customers were satisfied. What is the test statistic z? Ex: 1.23 Check Next Feedback? CHALLENGE h 74°F ET PriSc Insert F9 F10 F11 F12 & 08. 9. YU

Can someone please help me with letter b

Student Absences and Grades on the Final Exam Dr. V. noticed that the more frequently a student is late or absent from class the worse he or she performs on the final exam. He decided to investigate. Dr. V. collected a random sample of 22 students. This sample includes the number of times a student is absent and their grades on the final exam. The data can be found in the Excel file Assignment10.xlsx. Do not use any software that I did not assign.   Question 1: Which or the two variables (times absent or grades on the final exam) is the independent variable and which is the dependent variable?   Question 2: Using Microsoft Excel:  SHOW YOUR WORK   Times Late/Absent  Final Exam Grade 1 9 84.00 2 2 92.50 3 12 52.00 4 5 87.00 5 11 75.00 6 24 45.00 7 7 39.00 8 10 46.00 9 19 63.00 10 2 65.00 11 2 98.00 12 17 24.50 13 8 58.00 14 20 69.50 15 55 49.00 16 23 68.50 17 6 70.00 18 4 75.50 19 2 85.00 20 7 97.00 21 2 97.00 22 2 93.50 23 0 93.50 24 2…

Question 19 Lucille, Rocio, and Cristina are all taking College Mathematics but from different professors. They all recently took a statistics exam and the exam scores were normally distributed in each of their classes. • Lucille's class had an average grade of 77 and the standard deviation was 4. Lucille earned 84.2 on the exam. Rocio's class had an average grade of 85 and the standard deviation was 3. Rocio earned 85.6 on the exam. Cristina's class had an average grade of 85 and the standard deviation was 5. Cristina earned 91.5 on the exam. Since some professors give harder exams than others, these students decided to use statistics to figure out who did the best on their exam. Use the Cumulative Z-Score Table to answer the following questions. Write your answers as a percent with two decimal places. Hint • Lucille's score places her above % of her class. % of her class. Rocio's score places her above % of her class. • Cristina's score places her above Which person has the highest…

Sampling is the main technique for the size of data from the population size to a manageable size.

了 * 00 R Frequency cc.edu/webapps/assessment/take/launch.jsp?course_assessment_id=_842675_1&course_id%=_859154_1&content_id%3_19492605_1&step * Question Completion Status: QUESTION 1 The following histogram represents the number of body piercings for students in a statistics class. 40 0 2 4. 9 Number of Piercings 8 a. Is this graph symmetric or skewed? b. For this graph, is mean or median the best choice for the measure of center? c. For this graph, is standard deviation or IQR the best choice for the measure of variation? d. For this graph, the mean expected to be (higher than, lower than, or about the same as?) the median. QUESTION 2 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save 2 étv MacBook Air DD F7 F8 08 F 4 F5 F3 2$ 4 #3 9. 6. 5. |

A random selection of volunteers at a research institute has been exposed to a weak flu virus. After the volunteers began to have flu symptoms, 20 of them were given multivitamin tablets daily that contained 1 gram of vitamin C and 3 grams of various other vitamins and minerals. The remaining 20 volunteers were given tablets containing 4 grams of vitamin C only. For each individual, the length of time taken to recover from the flu was recorded. At the end of the experiment the following data were obtained.

Chi-square tests are common in genetics. A gene called ACTN3 encodes a protein which functions in fast-twitch muscles. People have different variants of this gene, classified as RR, RX, or XX. Computer output is shown for testing whether the proportions in these categories are 0.25, 0.5, and 0.25, respectively. The observed counts come from a study¹ conducted in Australia. Chi-Square Goodness-of-Fit Test for Observed Counts (a) What is the sample size? n = i Observed = i Expected = i Degree of Freedom = i Test Contribution Category Observed Proportion Expected to Chi-Sq RR 130 0.25 109 (e) What is the p-value? RX p-value = XX N (d) What are the degrees of freedom for the test? i V 226 80 436 (c) Which variant contributes the most to the chi-square statistic? DF For this variant, is the observed value greater than or less than expected? 2 (b) What is the observed number of people with the variant RR for this gene? What is the expected number of people in this group under Ho? Do the…

Coom O Launch Meeting Zoom O Launch Meeting Zoom Check Your Understanding Die x 711f0308264d0cbd87b76a#screenldx=D2 ng High intracranial pressure (inside the skull) typically is a a. How many false positives were there among these 189 people? Explain the meaning of a false positive for the person tested. result of an injury to the head and can be very dangerous. A screening test for high intracranial pressure was proposed many years ago, based on the data in the following observations. This simple and non-invasive test involves observing the retinal vein to see if it is pulsating. Pulsation is normal and so would be considered a negative test result. Pulsation Absent Pulsation Present Total (Positive Test) (Negative Test) High Intracranial Pressure (Condition Present) Normal Intracranial Pressure b. How many false negatives were there? Explain the meaning of a false negative for the person tested. 43 43 (Condition Absent) 18 128 146 Total 61 128 189 Sources: B.E Levin, "The Clinical…

Lecture(10.10): You decided to test the other two classes of grade 2 students, to see if you could achieve the same results using the Peabody Picture Vocabulary Test  and grouping based on birth order. You conducted an  ANOVA using MS excel. The results are shown below. Do Bonferroni post ad hoc analysis need to be conducted?. Write out the 5 step answer by including both the formal answer and formal conclusion Please note only need to provide Step 5 and conclusion.Assume  ( alpha =0.05) and round your F value to 2 decimal places. SUMMARY: Groups                  Count              Sum               Average              Variance       Oldest child.           20                 1818               90.0                    146.6211 Youngest child.       21                 1835              85.38095             123.9476 Middle child            22                1838               83.34545             185.5931   ANOVA Source of variation          SS                        df…

A medical prescription company was testing a new medication to prevent seizures.  They collected data on a person’s weight and the amount of medication in his/her bloodstream.  What type of data was collected?     Bivariate and Quantitative     Bivariate and Categorical     Univariate and Quantitative     Univariate and Categorical

Show all your work. Indicate clearly the methods you use, because you will be scored on the correctness of your methods as well as on the accuracy and completeness of your results and explanations.   Fingerprint analysis and blood grouping are features that do not change through the lifetime of an individual. Fingerprint features appear early in the development of a fetus, and blood types are determined by genetics. Therefore, each is considered an effective tool for identification of individuals. These characteristics are also of interest in the discipline of biological anthropology—a scientific discipline concerned with the biological and behavioral aspects of human beings. The relationship between these characteristics was the subject of a study conducted by biological anthropologists with a simple random sample of male students from a certain region with a large student population. Fingerprint patterns are generally classified as loops, whorls, and arches. The four…

what is the population of this study

please answer all questions fully and show all work down to the numerical values for each part

What type of data would you use for collecting data on lap swim time?

Define multicollinearity and how is it different from exact multicollinearity? How does exact multicollinearity affect OLS estimates? How do you solve and detect a multicollinearity problem?

Can you please answer all of the questions about the information provided.  Background Previous studies have demonstrated the short-term efficacy of pharmacotherapy and behavior therapy for attention-deficit/hyperactivity disorder (ADHD), but no longer-term (ie, >4 months) investigations have compared these 2 treatments or their combination. A 1999 study conducted by MTA Cooperative Group conducted a multisite study designed to evaluate the leading treatments for ADHD.  The Study A group of 425 children with ADHD Combined Type, aged 7 to 11 years, were assigned to 14 months of medication management (titration followed by monthly visits); intensive behavioral treatment (parent, school, and child components, with therapist involvement, gradually reduced over time); or the two combined. Outcomes were assessed in multiple domains before and during treatment and at the treatment endpoint (with the combined treatment and medication management groups continuing medication at all assessment…

Cant figure out part C