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Question

A study of wages of registered nurses was conducted in three major cities. Seven nurses from city A participated, nine nurses from city B participated, and twelve nurses from city C participated. The test statistic was calculated to be 4.91. What is the conclusion at the 0.05 level?

Submitted: 284 days and 12 hours ago.

Category: Math

Value: $15

Status: CLOSED

Posted by abozer 284 days and 12 hours ago.

Answer

Hi again,

degree of freedom numerator = k - 1 = 3 - 1 = 2
degree of freedom denominator = N - k = (n1 + n2 + n3) - 3 = (7 + 9 + 12) - 3 = 25

p-value = 0.01590

We reject the null hypothesis since the p-value is less than 0.05. We have sufficient evidence to conclude that the wages of the nurses in three major cities are different.

Accepted Answer

c. Not all mean wages are the same in all cities

Accepts:
Expert:	abozer
Pos. Feedback:	99.9 %
Answered:	2/12/2009

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