I need to determine the expected values and find the test statistic and the p value. ExpectedValuesTreatmentControlPain Free: YesPain Free: No Migraine and Acupuncture: A migraine is a particularly painful type of headache, which patientssometimes wish to treat with acupuncture. To determine whether acupuncture relieves migraine pain,researchers conducted a randomized controlled study where 162 patients diagnosed with migraineheadaches were randomly assigned to one of two groups: treatment or control. 75 patients in thetreatment group received acupuncture that is specifically designed to treat migraines. 87 patients in thecontrol group received placebo acupuncture (needle insertion at non-acupoint locations). 24 hours afterpatients received acupuncture, they were asked if they were pain free. Results are summarized in thecontingency table below. Test to see if migraine pain relief is dependent on receiving acupuncture. Use a= .10.TreatmentControlTotalPain Free: Yes Pain Free: No198275679135Total7587162

From the given information,Pain Free:YesPain Free: NoTotalTreatment195675Control87987Total27135162

Answered: I need to determine the expected values…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A popular charity used 36% of its donations on expenses. An organizer for a rival charity wanted to quickly provide a donor with evidence that the popular charity has expenses that are higher than other similar charities. The organizer randomly selected 10 similar charities and examined their donations. The percentage of the expenses that those 10 charities spend on expenses is given below 19 25 31 20 41 32 26 21 9 24 What is the test statistic?
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Angela and Karissa are two friends who say they have no previous knowledge of statistics. They are going to take a placement test to see if they should start at the introductory level or not. The placement test is a multiple-choice test with 93 questions. Each question has 4 multiple-choice options with exactly one correct answer. What is the expected number (mean) of correct answers if a student were to randomly guess? (Do not round) What is the standard deviation for the number of correct answers if a student were to randomly guess? (Round to two decimal places) The usual number of correct answers, if a student were to randomly guess, would be to . (Round to the nearest whole number that would be within the interval.) What is the probability of getting 21 or more questions correct if you are randomly guessing? (Round to four decimal places.) What is the probability of getting 61 or more questions correct if you are randomly guessing? (Round to four decimal places.) Angela got…
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t test for Independent Means Professor Smith hypothesizes that type of TV show impacts people’s mood. To study this, she uses two groups: the experimental group who watches reality TV shows for three hours, while the control group watches the news for three hours. Each of the groups then completes an assessment of mood. In all, 32 people participate: 17 watch reality TV shows and 15 watch the news. The Mean, Sample Size, and SS for each group are below. Using these data, conduct a t test (p<.05) to determine if TV show type had an impact on an individual’s mood. Reality TV Shows: News: N = 17 N = 15 M = 34 M = 24 SS = 340 SS = 251 Step 1) Create a research hypothesis and a null hypothesis about the populations. Null hypothesis (H0): Research hypothesis (HA): Step 2) Determine the characteristics of the comparison distribution. Degrees of freedom for experimental group and control group = df1 =…
For all hypothesis testing, you must use the five-step method. You are told that the population mean for the Law School Admissions Test (LSAT) for Canadian students is 429.You want to compare the population of UWO students with Canadian students as a whole with regard to LSAT scores. To find out, you take a random sample of 100 UWO students who have taken the test and find that the sample mean is 462. The population standard deviation is 81. Do UWO students score higher on the LSAT than students from Canada as a whole? You think they do. Use α = .05, and round to three places of the decimal. Interpret your results.
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