The following distribution is used to test the hypothesis about the population mean using a relatively small sample size {n < 30} 1. O Distribusi binomial binomial distribution 2. O Distribusi t t distribution 3. O Distribusi Z Z distribution 4. O Distribusi normal Normal distribution

Q: A pooled variance estimate is useful for two-sample hypothesis tests of a normal mean when the…

A: It is given that the population variances are equal.

Q: A cample mean is computed from a population with a variance of 2.45. The sample size is 40. The…

A: Given,variance(σ2)=2.45standard deviation(σ)=2.45sample size(n)=40

Q: Assume that the weight of a one-year-old is normally distributed with a mean of 9.5 kg and a…

A:

Q: amdom variable with a mean =13.2 and standard deviation =5.6 Ramdom samples of fixed size n=12 are…

A: As the population distribution is normal, it can be said that the distribution of the sample with…

Q: Diet Data on the weights (Ib) of the contents of cans of diet soda versus the contents of cans of…

A: Given: Data on the weights of contents of cans of diet soda and the content of cans of the regular…

Q: Can a normal approximation be used for a sampling distribution of sample means from a population…

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Q: For the following​ information, determine whether a normal sampling distribution can be​ used, where…

A: Given : Claim: p&gt;0.44​; α=0.08. Sample​ statistics: p=0.52​, n=350

Q: Decide whether the normal sampling distribution can be used. If it can be​ used, test the claim…

A: Given data : x1= 142.0 n1= 156 x2= 144.0 n2= 188

Q: Do rats take the same amount of time on average than hamsters to travel through a maze? The table…

A:

Q: A researcher wants to measure average cardiovascular health of university students and compare those…

A: Solution: The researchers are interested in measure the average cardiovascular health of university…