Question

a pizza franchise expects that a medium size pie will have 6oz of cheese with a standard deviation of .2. Covert weights of 5.7oz and 6.2oz to Z SCORES and sketch a graph of the weight distribution on a bell curve.
**I understand the sketching but I am not sure of the z score
i think i should use Z=X-mu/sigma

Answer 1

\[Z =X -\mu \div \sigma\]

Answer 2

\[z=\frac{X-\mu}{\sigma}\]

Answer 3

okay yes yours looks alot better than mine did! Now this might be a stupid question, but after I use that equation do I need to do anything else...like use that Ztable? or is that my Zscore that i put on the bell curve?

Answer 4

You can use a standard normal distribution table to find the cumulative probability values for each of the two z-scores. This will help to sketch the bell curve.

Answer 5

okay great thank you!

Answer 6

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Answer 7

You're welcome :)