The assumption of homogeneity of variance is met when _. 1.the variance is the same as the interquartile range 2.the variance in different groups is significantly different 3.the variance across groups is proportional to the means of those groups 4.the variance in different groups is approximately equal

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A: Null hypothesis: µ=18.7. Alternative hypothesis: µ≠18.7. This is a two-tailed test. Here, the sample…

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

Q: Because sample variances are computed by dividing SS by n – 1, the average value of the sample…

A: ANSWER:-  If a sample variance is computed by dividing SS by df=n-1, then the average value of the…

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A: Given : μ = 0.5σ = 0.4

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A: Given : Claim : The variance of the amounts of active ingredient per dose be less than 0.30

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Q: 2. A random variable of 25 packs of powdered milk showed a mean content of 237 grams with a standard…

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A: The sample size is 12, sample variance is 0.0012 and population standard deviation is 0.04.

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A:

Q: 2. The general weighted average of Mechanical Engineering students from a certain class are…

A: Given: μ=1.65σ=0.9

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Q: A pilot study showed a mean of 11,8 kg per pack and a variance of 0,49 kg. How many packs should the…

A: Given : A pilot study showed a mean of 11.8 kg per pack and a variance of 0.49 kg i.e Mean (μ) =…

Q: A producer claims that his potato chips weight has a normal distribution at least 150 grams. The…

A:

Q: Suppose that among the population of smartphone owners with 16GB of storage, the mean amount of…

A: From the provided information, Mean (µ) = 13 GB Standard deviation (σ) = 3 GB

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Q: If someone gets a raw score that is also the mean, median and mode of the data sample, where on the…

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A: The standard error of the sample mean is given as follows  SEM = σn

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A: Given, Suppose researchers are interested in estimating the prevalence of HIV in a population of…

Q: 2. A random variable of 25 packs of powdered milk showed a mean content of 237 grams with a standard…

A: Disclaimer, Since you have asked multiple question, we will solve the first question for you. If you…

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A: Let X represent the random variable   Mean=15 Variance=5.2   X~ Normal (15, 5.2)

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A: Let X be the number of flights, out of 1000, that will go around and bypass the Antalya Airport.

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Q: Suppose steel wires have the tensile strength represented by a normal distribution with mean value…

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Q: A producer claims that his potato chips weight has a normal distribution at least 150 grams. The…

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Q: Suppose that the distance of fly balls hit to the outfield is normally distributed with a mean of…

A: The mean is 252 and the standard deviation is 50.

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Q: Suppose that for a given animal, the length of pregnancy from conception to birth varies according…

A: Introduction:Let X denote the length of pregnancy from conception of a randomly chosen animal of the…