Posted by **please help in panic mode-mary** on Friday, October 15, 2010 at 5:39pm.

suppose you have a set of blood pressures with a mean of 80 diastolic, and standard deviation of 5 points. assuming a normal distribution of blood pressures what two values should 95% of all blood pressures lie? please show all calculations. thank you very much

- statistics -
**bobpursley**, Friday, October 15, 2010 at 6:14pm
see the other post.

- statistics -
**please help in panic mode-mary**, Friday, October 15, 2010 at 6:21pm
what other post, i don't know what you mean. can you show me the calculations? i have no idea where to begin and getting very frustrated. thank you very much.

mary

- statistics -
**PsyDAG**, Saturday, October 16, 2010 at 11:45am
Z = (score-mean)/SD

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the Z score = proportion of .475 from the mean. Insert Z value (one positive and one negative) and solve for your score values.

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