Monday

April 21, 2014

April 21, 2014

Number of results: 5

**staticstics**

0.1635
*Wednesday, October 17, 2012 at 10:27am by K.See*

**staticstics**

See your other post.
*Wednesday, October 17, 2012 at 10:27am by MathGuru*

**staticstics**

The average length of an adult blue whate is 30 meters with a standard deviation of 5.7 meters. If a sample of 31 whales is taken, what is the probability that their average lenght differs from the mean by more than 2.0 meters
*Wednesday, October 17, 2012 at 10:27am by melinda*

**staticstics**

The average length of an adult blue whate is 30 meters with a standard deviation of 5.7 meters. If a sample of 31 whales is taken, what is the probability that their average lenght differs from the mean by more than 2.0 meters
*Wednesday, October 17, 2012 at 10:27am by melinda*

**staticstics**

Use z-scores using sample size: z = (x - mean)/(sd/√n) Find two scores: z = (32 - 30)/(5.7/√31) z = (28 - 30)/(5.7/√31) Find the probability between the two z-scores using a z-table. Subtract that value from 1 for your answer. I hope this will help get you ...
*Wednesday, October 17, 2012 at 10:27am by MathGuru*

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