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January 30, 2015

January 30, 2015

Posted by **waqas** on Wednesday, August 17, 2011 at 2:20pm.

(a)What is the standard error for this sample’s mean? (b) What is the probability of a turtle living more than 85 years?

(c)What is the probability of a turtle living between 60 and 65 years?

(d)Find the 98% confidence interval for the mean lifetime.

(e) Below what age do the shortest lived 15% of turtles die?

- Statistics -
**PsyDAG**, Thursday, August 18, 2011 at 1:07pmSEm = SD/√n

Z = (score-mean)/SD or SEm, depending on whether you are talking about a distribution of individual scores or means respectively.

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportions related to the Z scores.

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