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April 18, 2014

April 18, 2014

Posted by **John** on Tuesday, February 5, 2013 at 10:20pm.

(2.36, 1.8331)

(1.17, 2.2622)

(2.36, 2.2622)

(1.17, 1.8331)

(0.025, 1.8125)

- Statistics -
**MathGuru**, Wednesday, February 6, 2013 at 6:53pmRemember that standard deviation is the square root of the variance.

Formula:

t = (sample mean - population mean)/(standard deviation divided by the square root of the sample size)

t = (22.10 - 17.10)/(6.7082/√10)

I'll let you finish the calculation.

The test is one-tailed at .05 level of significance. Look at the appropriate table and determine the critical value.

Hint: degrees of freedom = n - 1 = 9

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