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Sent to General Experts October 03, 2006 8:46 p.m.

Use a P-value to test the claim about the population mean µ using the given sample stats. State your decision for a = 0.05.

Claim: µ not= 230; Other values: x(bar) = 221.5; n = 36; and s = 17.3

Edited by Customer (name blocked for privacy) on October 3 2006 at 9:40pm

Customer (name blocked for privacy)

Status: Closed Value: $8

Answer
October 03, 2006 11:10 p.m. (2 hours and 23 minutes later)

ACCEPTED

Hello,

Using a TI-83 plus to do the t-test (since the population standard deviation is not known), I arrive at the P-value .005663...

Since this number is smaller than .05, you reject the null hypothesis and you have statistical proof that µ is different from 230.

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