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  1. mathematics
  2. statistics
  3. the null and alternate hypotheses are: h0 : μ1

The null and alternate hypotheses are: H0 : μ1 = μ2 H1 : μ1 ≠ μ2 A random sample of...

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Statistics

The null and alternate hypotheses are:

H0 : μ1 =μ2
H1 : μ1 ≠μ2

A random sample of 10 observations from one population revealeda sample mean of 23 and a sample standard deviation of 3.5. Arandom sample of 4 observations from another population revealed asample mean of 27 and a sample standard deviation of 3.6.

At the 0.01 significance level, is there a difference betweenthe population means?

  1. State the decision rule. (Negative values should beindicated by a minus sign. Round your answers to 3 decimalplaces.)

  1. Compute the pooled estimate of the population variance.(Round your answer to 3 decimal places.)

  1. Compute the test statistic. (Negative value should beindicated by a minus sign. Round your answer to 3 decimalplaces.)

Answer & Explanation Solved by verified expert
4.0 Ratings (747 Votes)
aTwo Tailed testGiven Significance Level 0012 00120005n1 Sample Size of Sample110n2 Sample Size of Sample24 Sample Mean of Sample 123 Sample Mean of Sample 227s1 Sample    See Answer
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