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February 28, 2015

February 28, 2015

Posted by **Anonymous** on Sunday, December 9, 2012 at 11:37am.

a) What is the probability that one randomly selected bottle will contain less than

296 mL of cola?

b) What is the probability that the average of 6 randomly selected bottles will contain less than 296 mL of cola?.

- Statistics -
**Angela**, Sunday, December 9, 2012 at 11:54amZ= x-u/o

So,

296-300/3

= -.77

Look at a standard normal distribution table

.2794 is the value from the table.

If you draw the curve, you will know that the area is to the left.

So, you subtract:

.5000- .2794

=.2206 is the probability.

I am not sure about the second part.

- Statistics -
**PsyDAG**, Sunday, December 9, 2012 at 12:32pmb) Z = (score-mean)/SEm

SEm = SD/√n

Use same table.

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