SOLUTION: According to research, the mean cost of safety equipment per year for colleges in Canada is $37,000.00. Suppose that these costs are normally distributed with a standard deviation

Algebra.Com
Question 1204221: According to research, the mean cost of safety equipment per year for colleges in Canada is $37,000.00. Suppose that these costs are normally distributed with a standard deviation of $5,000.00. If a Canadian College is selected at random, find the following probabilities.
For parts (b) express your answers as probabilities in decimal form (i.e. 0.0003 instead of 0.0300%), and round your answers to 4 decimal places.

(b) The cost is above $38,150.00.

For part (c), round your answer to 2 decimal places.
(c) What amount of cost is the cut-off for the top 10.20% of Canadian Colleges?

Answer by ikleyn(52776)   (Show Source): You can put this solution on YOUR website!
.

For (b), use the standard function normalcdf on your regular hand calculator TI-83/84.

For (c), use the standard function invNorm on your regular hand calculator TI-83/84.



RELATED QUESTIONS

According to research, the mean cost of safety equipement per year for colleges in Canada (answered by Theo)
According to research, the mean cost of safety equipement per year for colleges in Canada (answered by Boreal)
A corporation gave a university $300,000.00 to support product safety research. The... (answered by greenestamps)
A man has an investment of 13,760.00 in cash for equipment. His estimates of the year... (answered by Theo)
in 2005 there were 14,600 students at college a with a projected enrollment increase of... (answered by ewatrrr)
In 2006, there were 11,200 students at College A, with a projected enrollment increase of (answered by jorel1380)
I have a word problem need help on. In 2007, there were 13,300 student at college A, (answered by dukesmart)
3. According to a PEW* Research Center survey, the mean student loan at graduation is... (answered by ikleyn)
According to a school’s budget, the money spent on buying new equipment and money spent (answered by greenestamps)