s have determined that the population of potential clientele have head Engineers

Question

s have determined that the population of potential clientele have head Engineers must consider the breadths of male heads when designing helmets. The breadths that are normally distributed with a mean of 5.9-in and a standard deviation of 0.9-in range would you expect to find the middle 50% of most head breadths? in what Between and for the breadths of male heads in the sample? if you wer. to draw samples of size 37 fro m this population in what range would you expect to fir d the middle 50% of most averages Enter your answers as numbers. Your answers should be accurate to 2 decimal places. Points possble: 1 This is attempt 1 of 2

Explanation / Answer

1)

for middle 50% values fall between 25 th and 75th percentile for which z score =-/+ 0.6745

therefore middle 50% values are mean -/+z*std deviation =5.29 to 6.51

2)

  middle 50% values are mean -/+z*std deviation =5.80 to 6.00

for normal distribution z score =(X-)/ here mean=       = 5.9 std deviation   == 0.9000

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---

---

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