A weight loss program claims that with its recommended healthy diet regimen, users lose significant weight within a month. In order to estimate the mean weight loss of all customers, a nutritionist takes a sample of 20 dieters and records their weight loss one month after joining the program. He computes the sample mean of weight loss as 11.5 pounds. He knows the population standard deviation is 8.8 pounds. He believes that weight loss is likely to be normally distributed. What is the approximate margin of error for the 95% confidence interval. 4.12 3.86 4.92 5.58

Q: In a recent year, the scores for the reading portion of a test were normally distributed, with a…

A: Mean is 20.4 and the standard deviation is 6.5.

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A: GivenMean(μ)=500standard deviation(σ)=40

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A: For the given data Perform t test for one sample mean

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A:

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A:

Q: a) Compute the mean number of yellow eggs in samples of 58 eggs? (that is the same as asking for the…

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Q: The director of admissions at Kinzua University in Nova Scotia estimated the distribution of student…

A: 1000 0.6 600 1000000 600000 1200 0.3 360 1440000 432000 1500 0.1 150 2250000 225000

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A:

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A:

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A:

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A: Hypotheses: H0: μ1=μ2=μ3 H1: At least two of the means differ from each other. All distributions are…

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A:

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A: Assume the variable of interest is X.

Q: 5. Carry out an appropriate statistical test to determine whether the data is normally distributed.

A:

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A: Given data is5,7,3,10,9,7,5,2,1,8,1,9,6,9,7,5,6,4,3,7,9,2,4,10,9,1Arrange the data in ascending…

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Q: The consumer board’s alternative hypothesis is:

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A: Let 'X' be the random variable representing the weights of people. X~N181.9, 35.1

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A: Given data 4 years Old 2 years Old n1 = 26 n2 = 25 S1 = 150 s2 = 100   Null…

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A: Note: As per the instructions of Bartleby solving first three subparts. Kindly repost the remaining…

Q: A hospital wants to determine if the type of treatment for pneumonia is a factor in recovery time?…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…