Assume that the height of men are normally distributed with a mean of 69.4 inche

Question

Assume that the height of men are normally distributed with a mean of 69.4 inches and a standard deviation of 1.3 inches. If the top 5 percent and the bottom 5 percent are excluded for an experiment, what are the cutoff heights to be eligible for this experiment? Assume that the height of men are normally distributed with a mean of 69.4 inches and a standard deviation of 1.3 inches. If the top 5 percent and the bottom 5 percent are excluded for an experiment, what are the cutoff heights to be eligible for this experiment?

Explanation / Answer

Mean is 69.4 and s is 1.3

since we are removing the top 5 percent and the bottom 5 percent, we need to find the values at 90% confidence here. z value for 90% confidence is 1.65

thus lower bound is 69.4-1.65*1.3=67.255

upper bound is  69.4+1.65*1.3=71.545

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

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