The null and alternate hypotheses are: H0: μ1 ≤ μ2 H1: μ1 > μ2 A random...

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The null and alternate hypotheses are: H0: μ1 ≤ μ2 H1: μ1 > μ2 A random...

The null and alternate hypotheses are:

H₀: μ₁ ≤ μ₂

H₁: μ₁ > μ₂

A random sample of 27 items from the first population showed a mean of 110 and a standard deviation of 15. A sample of 19 items for the second population showed a mean of 100 and a standard deviation of 6. Use the 0.025 significant level.

a. Find the degrees of freedom for unequal variance test. (Round down your answer to the nearest whole number.)

b. State the decision rule for 0.025 significance level. (Round your answer to 3 decimal places.)

c. Compute the value of the test statistic. (Round your answer to 3 decimal places.)

d. What is your decision regarding the null hypothesis? Use the 0.03 significance level.

math Statistics-And-Probability

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Answer 1

Answer #1

riven thot First Secon d ,-27 97I5 O Unequal Vavance test Degrees of freedom: min(nun)- min ( 2五11) -1 -19- 18 elec -ei tsh > 10-lo o 2 - 10 8-3汁1,898 3.19 1 t= 31241 tusing oble 3%, level de Reject. Hood

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Answer 2

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