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 155 patients diagnosed with migraineheadaches were randomly assigned to one of two groups: treatment or control. 79 patients in thetreatment group received acupuncture that is specifically designed to treat migraines. 76 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= 0.05.TreatmentControlTotal∞ºPain Free: Yes Pain Free: No20626a) What is the correct null hypothesis?O Ho: Migraine pain relief is dependent on receiving acupuncture.O Ho: P1 = P2 = P3 = P4O Ho: P1 P2 P3 P4Ho: Migraine pain relief is independent on receiving acupuncture.ExpectedValuesTreatmentControl5970129b) Fill in the expected values, round answers to at least 1 decimal place.Total7976155Pain Free: YesPain Free: Noc) Find the test statistic, round answer to at least 2 decimal places.d) What is the P-value? (Round answer to at least 3 decimal places)e) What is the correct conclusion?There is statistical evidence that migraine pain relief is dependent on receiving acupuncture.O There is no statistical evidence that migraine pain relief is dependent on receiving acupuncture.

The data shows 155 patients diagnosed with migraine treatment.

Answered: b) Fill in the expected values, round…

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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What's the t= ? And the p-value?
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ou are doing a problem where you have a negative z-score, and you have to look up the proportion of the shaded area in the tail beyond that z-score; in other words, you are shading to the left from your z-score, and looking for the proportion that you shaded. Four “proportions” are given below. Which one is the ONLY one that could potentially be the number you are looking for? (Hint: Think about what you know about proportions: What kind of number are they? And what things can they represent?) Group of answer choices p = 0.3800 p = -0.1500 p = 1.1500 p = 0.5635
A publisher reports that 61 % of their readers own a particular make of car. A marketing executive wants to test the claim that the percentage is actually different from the reported percentage. A random sample of 320 found that 55 % of the readers owned a particular make of car. Determine the P-value of the test statistic. Round your answer to four decimal places. Answer How to enter your answer (opens in new window) Tables Keypad Keyboard Shortcuts
Claim: Fewer than 93% of adults have a cell phone. In a reputable poll of 1041 adults, 88% said that they have a cell phone. Find the value of the test statistic. Question content area bottom Part 1 The value of the test statistic is enter your response here. (Round to two decimal places as needed.)
In a random sample of seven people, the mean driving distance to work was 22.5 miles and the standard deviation was 5.9 miles. Assume the population is normally distributed and use the t-distribution to find the margin of error and construct a 95% confidence interval for the population mean u. Interpret the results. Identify the margin of error. (Round to one decimal place as needed.) Construct a 95% confidence interval for the population mean. (Round to one decimal place as needed.) Interpret the results. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) O A. With % confidence, it can be said that most driving distances to work (in miles) in the population are between the interval's endpoints. O B. It can be said that % of the population has a driving distance to work (in miles) that is between the interval's endpoints. OC. With % confidence, it can be said that the population mean driving distance to work…
Use the expression in the accompanying discussion of sample size to find the size of each sample if you want to estimate the difference between proportions of men and women who own smartphones. Assume that you want 90% confidence that your error is no more than 0.02. A Click the icon to view the discussion of sample size. Sample size discussion The sample should include (Type whole numbers.) men and women. The sample size needed to estimate the difference between two population proportions to within a margin of error E with a confidence level of 1-a can be found by using the follow expression: P2 92 P191 E=Za/2 n2 Replace n, and n, by n in the preceding formula (assuming that both samples have the same size) and replace each of p,91, P2, and q, by 0.5 (because their values are not known). Solving for n results in this expression: za12 .2 2E
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Need help finding test statistic and p-value. See the photo for problem.
Help me with all of them please
Use the confidence interval to find the margin of error and the sample mean. (1.57,1.95) The margin of error is enter your response here.
Use the contingency table to the right to complete parts (a) What is the value of the test statistic? (Round to two decimal places as needed.)

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b) Fill in the expected values, round answers to at least 1 decimal place. Expected Values Treatment Control Pain Free: Yes Pain Free: No c) Find the test statistic, round answer to at least 2 decimal places. d) What is the P-value? (Round answer to at least 3 decimal places)