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A random sample of n1 = 16 communities in western Kansas gave the following information for...

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Statistics

A random sample of n1 = 16 communities inwestern Kansas gave the following information for people under 25years of age.

x1: Rate of hay fever per 1000population for people under 25

98901201289212311293
125951251179712212788

A random sample of n2 = 14 regions inwestern Kansas gave the following information for people over 50years old.

x2: Rate of hay fever per 1000population for people over 50

971101039611488110
79115100891148596

1. Calculate S1, round to two decimalplaces

2. What is the value of the sample test statistic?Compute the corresponding z or t value asappropriate. (Test the difference μ1 − μ2. Donot use rounded values. Round your answer to three decimalplaces.)

3. Find a 90% confidence interval for μ1 −μ2. (Round your answers to two decimalplaces.)

Upper Limit =

Lower Limit =

Answer & Explanation Solved by verified expert
3.6 Ratings (418 Votes)
Hey I have used excel for this but dont worry    See Answer
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