Salaries for teachers in a particular elementary school district are normally distributed with a mean of $42,000 and a standard deviation of $6,100. We randomly survey ten teachers from that district. Part (a) Part (b) Give the distribution of X. (Enter exact numbers as integers, fractions, or decimals.) 6,100 X-N✔ 42,000 Part (c) Part (d) Part (e) Find the probability that the teachers earn a total of over $400,000. (Round your answer to four decimal places.) 0.8501 Part (1) Find the 90th percentile for an individual teacher's salary. (Round your answer to the nearest whole number.) $56817 x Part (g) Find the 90th percentile for the sum of ten teachers' salary. (Round your answer to the nearest whole number.) $ 51472 x Part (h) Part (1) Submit APSUUSS ing

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Salaries for teachers in a particular elementary school district are normally distributed with a mean of $42,000 and a standard deviation of $6,100. We randomly survey ten teachers
from that district.
Part (a)
Part (b)
Give the distribution of X. (Enter exact numbers as integers, fractions, or decimals.)
X-N✔ 42,000
6,100
)
Part (c)
Part (d)
Part (e)
Find the probability that the teachers earn a total of over $400,000. (Round your answer to four decimal places.)
0.8501
Part (1)
Find the 90th percentile for an individual teacher's salary. (Round your answer to the nearest whole number.)
$ 56817
X
Part (g)
Find the 90th percentile for the sum of ten teachers' salary. (Round your answer to the nearest whole number.)
$ 51472
x
Part (h)
Part (1)
Submit Answer
ing
Transcribed Image Text:Salaries for teachers in a particular elementary school district are normally distributed with a mean of $42,000 and a standard deviation of $6,100. We randomly survey ten teachers from that district. Part (a) Part (b) Give the distribution of X. (Enter exact numbers as integers, fractions, or decimals.) X-N✔ 42,000 6,100 ) Part (c) Part (d) Part (e) Find the probability that the teachers earn a total of over $400,000. (Round your answer to four decimal places.) 0.8501 Part (1) Find the 90th percentile for an individual teacher's salary. (Round your answer to the nearest whole number.) $ 56817 X Part (g) Find the 90th percentile for the sum of ten teachers' salary. (Round your answer to the nearest whole number.) $ 51472 x Part (h) Part (1) Submit Answer ing
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