A researcher would like to evaluate whether a pain-relief patch designed for lower back pain is effective at lowering pain. Prior to testing the patch, each of n = 8 patients rates the current level of back pain on a scale from 1 to 10 (lower values indicate lower pain). After wearing the patch for 90 minutes, a second pain rating is recorded. The data are as follows: Before After 5 2 7 3 8 4 7 1 4 2 3 8. 8. 7

Q: 4. If x = 31, x2 = 28, s= 2.13, ni= 6, n2=7 then t=_ В. 3.68 %3D А. 3.71 С. 3.70 D. 3.69 5. If i =…

A: Dear Student, As per the guidelines I can solve only the 3 subparts. Kindly repost remaining parts.

Q: Minnesota had the highest turnout rate of any state for the 2012 Presidential election (United…

A: Given : x1 = 663 n1 = 884 x2 = 414 n2 = 575

Q: In testing hypotheses, if the consequences of rejecting the null hypothesis are very serious, we…

A: Null hypo. proposes that there is no difference in a set of given values.

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A: Population:The set of all subjects of interest can be termed as population.Sample:The subset of the…

Q: You believe both populations are normally distributed and that the population standard deviations…

A: Given that n1=42,x¯1=50.1,σ1=11.6 and n2=53,x¯2=53.2,σ2=9.5.

Q: there is no statistically significant relationship between fear of crime and walking alone in your…

A: Given statement is,There is no statistically significant relationship between fear of crime and…

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A: Sample size n =35 Population mean =8.953

Q: In Exercises, hypothesis tests are proposed. For each hypothesis test, a.determine the null…

A: a).Let µ be the mean lactation period of the population.The null hypothesis for the test is given…

Q: I. Identify the claim in symbolic form, hypotheses in symbolic form, appropriate analysis, and the…

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A:

Q: In performing a hypothesis T-test, the p-value was 0.00046 and the significance level was 5%.  What…

A: Given,   P-value: 0.00046 Level of significance = 0.05   The objective is to find the conclusion.

Q: significance? a. For this study, we should use Select an answer b. The null and alternative…

A: Introduction: One sample proportion Introduction: One sample proportion test is used to compare the…

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A: Margin of error is obtained through the multiplication of the critical value with the standard…

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A: The mean age of bus drivers is 48.7 years.

Q: 3. The Dagupan Tribune reported that 75% of population oppose same sex marriages, 20% approve, and…

A: a)  Null and Alternative Hypotheses :  H0:p1=0.75,p2=0.2,p3=0.05H_0: p_1 = 0.75, p_2 = 0.2, p_3 =…

Q: Identify the null and alternative hypotheses for this test. Choose the correct answer below. O A.…

A:

Q: l land with the buttered side down when dropped. Identify the null and alternative hypotheses to…

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A: From given data we have : x=488 n=488+399=887

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A: Given,   P-value = 0.03 Level of significance = 0.05   The objective is to find the conclusion.

Q: 1. Use technology to find the​ P-value for the hypothesis test described below.   The claim is that…

A:

Q: According to a recent report, 47% of college student internships are unpaid. A recent survey of 80…

A: given data  n = 80 x = 45 claim : p ≠ 0.47

Q: A core mathematics project is testing an innovative approach to teaching Mathematics that emphasizes…

A: In order to determine whether the new approach is better than the traditional approach or not ,…

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A:

Q: se the correct answer below. b. The test statistic is z= c. The​ P-value is enter your response…

A:

Q: 1a. write the hypotheses in symbolic form determine if the test is right tailed left tailed or two…

A: Here sample 1 consist of younger adults(20 to 29). x1: number of favorable cases in sample 1=205 n1:…

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A: a) The hypothesized proportion is 0.20.

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A: The given table shows the sport preference and age of participants.

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A: Solution: Claim:  Subjects lies are independent of the polygraph test indication.

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A: There are two types of hypotheses: one is the null hypothesis and the other is the alternative…

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A: The provided contingency table is:   No high school diploma High School Diploma Associate…

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A: Hypothesis is an assumption that is being tested.

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A: a) - Let p = proportion that touch therapists uses a random guess method. Here, random guess means;…

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A:

Q: 4. The effectiveness of the Weight Watchers diet is tested in an experiment, and for each subject,…

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Q: 1. A Pew Poll taken in 2010 surveyed 830 randomly selected people ages 18 – 29, and found that 166…

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Q: According to the February 2008 Federal Trade Commission report on consumer fraud and identity theft,…

A: As per guideline expert have to answer first question three subparts only dear student please upload…

Q: 2. Toastmasters International cites a report by Gallup Poll that 40% of Americans fear public…

A: point estimate = p^ = xn=137361=0.3795n = 361

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.