Assume that you have a sample of n1=8​, with the sample mean X1=44​, and a sample standard deviation of S1=4​, and you have an independent sample of n2=6 from another population with a sample mean of X2=35 and the sample standard deviation S2=5. Assuming the population variances are​ equal, at the 0.01 level of​ significance, is there evidence that μ1>μ2​?   Find the​ p-value.   ​p-value=__________ ​(Round to three decimal places as​ needed.)

Q: Suppose you have a sample of size n for variables X and Y. The sample covariance of X and Y is…

A:

Q: A random sample of 85 eighth grade​ students' scores on a national mathematics assessment test has a…

A: From the provided information, Sample size (n) = 85 Sample mean (x̅) = 285 Population standard…

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A: Here AS PER POLICY I HAVE CALCULATED 3 SUBPARTS PLZ REPOST FOR REMAINING PARTS WITH NOTE I NEED…

Q: population variance is 3.68. Would this sample be considered significantly different from the…

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A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

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A: The z score indicates how many standard deviations that a data points away from the mean. It can be…

Q: Let x represent the number of mountain climbers killed each year. The long-term variance of x is…

A: σ2=136.2s2=109.2α=0.01

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A: Given information,  Claim : A company that makes cols drinks states that the mean caffeine content…

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A: Given information: x¯=91.1 mmσ=8 mmμ=86 mmn=14

Q: If X is a normal variate with mean 5 and variance 4. Find P ( -1.5 < X < 2)?

A: Given,mean(μ)=5standard deviation(σ)=2

Q: A random sample of 88 eighth grade​ students' scores on a national mathematics assessment test has…

A: Given Information: Sample size (n) = 88 Sample mean (x¯) = 283 Population standard deviation (σ) =…

Q: current variance is less than 5.1. (a) What is the level of significance? State the null and…

A: It is given that  Sample size n = 51 Sample variance s2 = 3.1 Level of significance = 5% Note :…

Q: Express the quartiles, Q1, Q2, and Q3, of a normally distributed variable in terms of its mean, µ,…

A: First Quartile (Q1)From the given information the first quartile is represented by 25th percentile…

Q: Assume that you have a sample of n1= 7​,with the sample mean X1= 41​, and a sample standard…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

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A: n= 41 Sample size  s2=2.9 Sample variance σ2=5.1  Population variance

Q: is there enough evidence to support the​ administrator's claim

A: Given that  Sample size(n)= 76 Sample mean (x¯) = 283 Population standard deviation(σ) = 31 Level of…

Q: A company that makes cola drinks states that the mean caffeine content per​ 12-ounce bottle of cola…

A: From the provided information, Sample size (n) = 30 Sample mean (x̅) = 35.5 Population standard…

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A: According to policy we supposed to answer first question for remaining please repost the question.

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A: Given that,population mean() = 32sample size (n) = 40Sample mean () = 32.75Standard deviations (s) =…

Q: A random sample of n = 16 scores is obtained from a population with a standard deviation of σ = 18.…

A: Solution: From the given information, n=16, σ=18, x-bar=86 and z=2.

Q: Q6. Independent random samples of sizes nį = 16 and n2 = 25 from two normal populations yield s =…

A: Solution: Given information: n1= 16  Sample size of sample 1n2=25  Sample size of sample 2s1= 4.8…

Q: Consider a normal population with µ = 50 and σ = 6. A sample size of at least which size needs to be…

A: The population standard deviation is 6 and margin of error is 2 or less.

Q: Assume that you have a sample of n. = 8, with the sample mean X. = 46, and a sample standard…

A: Given:

Q: A company that makes cola drinks states that the mean caffeine content per 12-ounce bottle of cola…

A: The claim is that the mean caffeine content per 12-ounce bottle of cola is 40 milligrams.

Q: Suppose x has a distribution with a mean of 20 and a standard deviation of 4. Random samples of size…

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Q: The average age of the library books is μ = 20 in California. This distribution is negatively…

A: Given information- Sample size, n = 16 Sample mean, M = 23.8 Sample variance (s2) = 67.5 Therefore,…

Q: According to the records of the last 15 years, the average rainfall in the Marmara region in March…

A:

Q: A company that makes cola drinks states that the mean caffeine content per​ 12-ounce bottle of cola…

A:

Q: The confidence interval for the population variance was found to be 86.233 to 456.955. However, a…

A: The confidence interval of population variance is given = (86.233, 456.955)

Q: (a) Identify H0 and Ha. ​(b) Find the critical​ value(s). Select the correct choice below and fill…

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Q: A company that makes cola drinks states that the mean caffeine content per​ 12-ounce bottle of cola…

A:

Q: Suppose it is desired to estimate the variance of the tensile strength of a particular type of…

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A: Formula used: The standard deviations of sampling distribution is=  Sd/ √n

Q: You believe both populations are normally distributed, but you do not know the standard deviations…

A: (a) The test statistic is 0.797, which is obtained below:…

Q: A company that makes cola drinks states that the mean caffeine content per​ 12-ounce bottle of cola…

A:

Q: Our environment is very sensitive to the amount of ozone in the upper atmosphere. The level of ozone…

A:

Q: Assuming that the sample consists of n = 36 individuals, use a two-tailed hypothesis test with a =…

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