Posted by **jilla** on Saturday, July 7, 2012 at 9:59am.

An April 15, 2002 report in Time Magazine stated that the average age for women to marry in the United States is now 24.9 years of age. If the standard deviation is assumed to be 4.9 years, find the probability that a random sample of 33 U.S. women would show a mean age at marriage of less than or equal to 23.2 years. (Give your answer correct to four decimal places.)

- statistics -
**kristy**, Saturday, July 7, 2012 at 10:01am
Find the area under the standard normal curve to the left of z = 1.88, P(z < 1.88). (Give your answer correct to four decimal places.)

- statistics -
**PsyDAG**, Saturday, July 7, 2012 at 1:54pm
Z = (score-mean)/SEm

SEm = SD/√n

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

Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.

## Answer this Question

## Related Questions

- Statistics - An April 15, 2002 report in Time Magazine stated that the average ...
- tempe - An April 15, 2002 report in Time Magazine stated that the average age ...
- Statistics - An April 15, 2002 report in Time Magazine stated that the average ...
- statistics - An April 15, 2002 report in Time Magazine stated that the average ...
- statistics - An April 15, 2002 report in Time Magazine stated that the average ...
- STATISTICS - An April 15, 2002 report in Time Magazine stated that the average ...
- statistics - An April 15, 2002 report in Time Magazine stated that the average ...
- statistics - the mean age at which men in the united states marry for the first ...
- statistics - According to Beautiful Bride magazine, the average age of a groom ...
- statistics - The average age of a vehicle registered in the United States is 8 ...

More Related Questions