A repeated-measures analysis of variance for a study comparing three treatment conditions with a sample of n=20 participants, produces an F-ratio of F=6.40. Accet the F ratio at .05 but reject it at .01

Q: An aim of this study was to evaluate if there is a difference after the GFCF (gluten-free,…

A: Given that: Mean of paired difference, d¯=1 Standard deviation of paired difference, sd=3…

Q: Would it be reasonable to conclude the true mean had changed (that is, it is not really 75.5 for…

A: Given : n=6 , X-bar=78.7  , σ=3.5 , μ0=75.5  Assume that α=0.05 Since , the population standard…

Q: A researcher wants to determine if having a visible tattoo can significantly lower the…

A: We will be using the One-way repeated-measures ANOVA here. The Null and Alternate hypotheses are…

Q: In a test of the effectiveness of garlic for lowering​ cholesterol, 49 subjects were treated with…

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Q: A particular brand of tires claims that its deluxe tire averages at least 50,000 miles before it…

A: Given, μ = 50000 σ = 8000 Mean, -x = 45600 n = 29 alpha = 0.05

Q: Suppose that shoe sizes of American women have a bell-shaped distribution with a mean of 8.47 and a…

A: Empirical rule: The probability that the observation under the normal curve lies within 1 standard…

Q: In a test of the effectiveness of garlic for lowering​ cholesterol, 64 subjects were treated with…

A: From the provided information, Sample size (n) = 64 Sample mean (x̅) = 0.9 Sample standard deviation…

Q: The mean and standard deviation of the marks obtained by students in a statistics examination is…

A: Mark's in statistics exam = X  Mean of X = 35.8 Standard deviation of X = 23.2

Q: An almond milk distributor wants to determine whether the mean amount of almond milk contained in a…

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Q: Age at onset of dementia was determined in the general population to be 70 and standard deviation…

A: Given Information: Age at onset of dementia was determined in the general population to be mean 70…

Q: For a population with mean 90 and standard deviation 10, what is the z-score corresponding to X =…

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Q: A researcher reports an F-ratio with dfbetween=2 and dfwithin=30 for an independent-measures ANOVA.

A: Note: Thank you for the question. Since the complete question is missing, we have considered the…

Q: Patients at the outpatient surgical center in Braintree, MA have an average recovery time of 14 days…

A: Given that : Mean = 14 days S. D = 3 days P(z < y) = 62%  Let y be the  raw score.  By using…

Q: A preschool teacher wanted to know the mean age of kindergarten students in her town. She took a…

A: The following information has been given: The sample size is n=40. The sample mean is x¯=5. The…

Q: ersons given a daily dose of 4 milligrams (mg) of vitamin C, ?2, versus those who were not, ?1.…

A: Use t test to test the mean time of 2 procedure

Q: 2. The average pre-school cost for tuition fees last year was P74,200. The following year, 20…

A: The null hypothesis is a simple statement about the value of the population parameter which is…

Q: Using the conf interval...calculate average and standard deviation of the paired differences. Please…

A: The two groups here are stree score at baseline and follow-up.Here difference can be defined asd =…

Q: he president of a university believes the entering class this year has an average ACT score…

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Q: You are a data analyst for a large company, and you have received a dataset with a variety of…

A: In one-way ANOVA test F-statistic is 8.00 Mean variation between groups(MSB) =16630

Q: A company claims that its product has a useful life of at least 34 months. You have the following…

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Q: Scores on the Critical Reading part of the SAT exam in a recent year were roughly Normal with mean…

A: The mean is 496 and the standard deviation is 115.

Q: For a sample of 49 items from a normally distributed population for which the standard deviation is…

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Q: In a test of the effectiveness of garlic for lowering cholesterol, 64 subjects were treated with raw…

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Q: A normal dsitribution of scores has a mean of 22.19 and a SD of 13. What is the exact proportion of…

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Q: In 2009 Noodles & Company introduced spaghetti and meatballs to its menu. Before putting it on the…

A: In order to determine whether the mean difference between the taste rating of older sauce and new…

Q: A random sample of 36 patients with arthritis took the drug for three months. Blood tests showed…

A: Sample mean ( x¯ ) =8.8 Sample standard deviation (s) = 3.3 Sample size (n) = 36 Claim : The drug…

Q: In a sample of five cars, each car was tested for nitrogen-oxide emissions (in grams per mile) and…

A: From the provided information, Sample size (n) = 5 The mean and standard deviation of data can be…

Q: You are comparing two chemical processes that manufacture the same product in two different…

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Q: Consider a sample of 43 Zukain candies. The weights of candies are normally distributed with a…

A: The given data is as follows:Sample size, Sample mean, Sample standard deviation, Candy's weight,

Q: In a test of the effectiveness of garlic for lowering cholesterol, 36 subjects were treated with raw…

A: Given information: Number of subjects used for test of the effectiveness of garlic n=36 The mean of…

Q: erence between two independent population means z-test for a population proportion  The null and…

A: Hey there! Thank you for posting the question.Since you have posted a question with multiple…

Q: The average number of accidents at controlled intersections per year is 5.8.  Is this average less…

A: Given, The average number of accidents at controlled intersections per year is 5.8.  Is this average…

Q: effects of an iron supplement in increasing hemoglobin levels is being clinically tested on a group…

A: Provided information is, the effects of an iron supplement in increasing hemoglobin levels is being…

Q: What are the null and alternative​ hypotheses? b) Determine the test statistic. c) Determine the​…

A: Given that  Hypothesized Population Mean (\mu)(μ) = 00 Sample Standard Deviation (s)(s) =…

Q: what is the p- value

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Q: An almond milk distributor wants to determine whether the mean amount of almond milk contained in a…

A: Answer: From the given data, Sample size(n) = 25 sample mean (X¯) = 0.976 Standard deviation(σ) =…

Q: Do men take a different amount of time than women to get out of bed in the morning? The 54 men obs…

A: Solution: Given information: n1= 54 Sample size of men n2= 59 Sample size of women x1= 4.3 Sample…

Q: In a test of the effectiveness of garlic for lowering​ cholesterol, 36 subjects were treated with…

A: State the hypotheses. That is, there is no evidence that with the garlic treatment, the mean change…

Q: A researcher wants to select a sample from a population with a mean (µ)= 60 and administer a…

A: Solution-: A researcher wants to select a sample from a population with a mean (µ)= 60 and…

Q: ou wish to determine the average VO2max (maximum rate of oxygen consumption, often associated with…

A: Given Information: Sample size n=100 Sample mean x¯=71 Sample variance s2=26.06 Sample standard…

Q: A clinical researcher knows from experience that average body temperature for a particular group…

A: To simulate 1,000 values from a normal distribution with a mean of 98.2 degrees Fahrenheit and a…

Q: When samples of size 30 are collected from a normal population that has a mean of 200 and a standard…

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