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  3. the following results come from two independent ra

The following results come from two independent random samples taken of two populations. Sample 1 Sample 2 n1 =...

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Statistics

The following results come from two independent random samplestaken of two populations.

Sample 1Sample 2

n1 = 60

n2 = 35

x1 = 13.6

x2 = 11.6

σ1 = 2.5

σ2 = 3

(a)

What is the point estimate of the difference between the twopopulation means? (Use

x1 − x2.)

(b)

Provide a 90% confidence interval for the difference between thetwo population means. (Use

x1 − x2.

Round your answers to two decimal places.)

  to  

(c)

Provide a 95% confidence interval for the difference between thetwo population means. (Use

x1 − x2.

Round your answers to two decimal places.)

Answer & Explanation Solved by verified expert
4.2 Ratings (555 Votes)
a Point estimate is 24bcDear    See Answer
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