120 121 26. How many teachers have a salary above 540,000? Round to the nearest

Question

120 121 26. How many teachers have a salary above 540,000? Round to the nearest percent 122 24 27. How many teachers have a salary between $45,000 and $55,000? Round to the nearest percent 125 126 12 72, what is the cutoff salary for top 25% salaries? Round to the nearest dollar 128 129 130 30. Assume that scores on certain test are normally distributed with a mean of 20 and a standard deviation of 7.H 9 people are randomly selected, find the probability that their average score will 131 be greater than 22 Round to the nearest percent 132 133 134 135

Explanation / Answer

We are allowed to do only 1 question at a time. Please post again for other questions.

Data for 26 - 28 not given

3) Mean = 20

SD = 7

n = 9

P(X > 22)

z = (22 - 20)/7/9

z = 0.86

P = 0.1949

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.