Salaries for teachers in a particular elementary school district are normally distributed with a mean of $45,000 and a s

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Salaries for teachers in a particular elementary school district are normally distributed with a mean of $45,000 and a s

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Salaries For Teachers In A Particular Elementary School District Are Normally Distributed With A Mean Of 45 000 And A S 1
Salaries For Teachers In A Particular Elementary School District Are Normally Distributed With A Mean Of 45 000 And A S 1 (24 KiB) Viewed 37 times
Salaries for teachers in a particular elementary school district are normally distributed with a mean of $45,000 and a standard deviation of $6,100. We randomly survey ten teachers from that district. Part (a) Part (b) Part (c) Part (d) Give the distribution of EX. (Round your answers to two decimal places.) EX~N✔✔ Part (e) Find the probability that the teachers earn a total of over $400,000. (Round your answer to four decimal places.) Part (f) Ⓒ Part (g) Find the 90th percentile for the sum of ten teachers' salary. (Round your answer to the nearest whole number.) $ 47473 X
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