A random sample of size n1 = 25, taken from a normalpopulation with a standard deviation σ1 = 5.2, has amean x1 = 81. A second random sample of sizen2 = 36, take from a normal population with a standarddeviationσ1 = 3.4, has a mean x2= 76. Testthe hypothesis than μ1 = μ2 against thealternative, μ1 ≠ μ2. Use a 0.05 level ofsignificance.CLAIM:IHoH1IILevel of significance: IIIType of test: IVCritical RegionVTest StatisticVIDECISIONVIICONCLUSION
A random sample of size n1 = 25, taken from a normalpopulation with a standard deviati…
2022年4月13日
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SOLVED: A random sample of n1 = 49 measurements from a population with population standard deviation σ1 = 3 had a sample mean of x1 = 9. An independent random sample of n2 = 64 measurements from a second population with population standard deviation σ2 = 4 had a sample mean of x2 = 11. Test the claim that the population means are different. Use a level of significance of 0.01.a. Compute x1 - x2.x1 - x2 = b. Compute the corresponding sample distribution value. (Test the difference μ1 - μ2. Ro
SOLVED: A random sample of n1 = 49 measurements from a population with pop…
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