Monday

October 20, 2014

October 20, 2014

Posted by **Liz** on Monday, April 8, 2013 at 2:34pm.

b) assume that half of the 200 passengers are men, what doorway height satisfies the condition that there is a .95 probability that this height is greater than the mean height of 100 men?

- Statistics -
**anoynomous**, Monday, April 8, 2013 at 2:49pma)

The value of z such that P(Z<z)= 0.95 is z = 1.6449

Solving for x:

z =1.6449=(x-69.0)/2.8

x = 1.6449*2.8+69 = 73.6

b)

Solving for xbar:

z =1.6449=(xbar-69.0)/(2.8/sqrt(100))

xbar = 1.6449*0.28+69 = 69.5

**Answer this Question**

**Related Questions**

Statistics - In a murder trial in Los Angeles, a shoe expert stated that the ...

stat - assume that the heights of men are normally distributed with a mean of 68...

statistics - The heights of South African men are normally distributed with a ...

Statistics - The heights of 18-year-old men are approximately normally ...

Stats - The heights of men in the USA are normally distributed with a mean of 68...

statistics - It is well known that the heights of individual American men are ...

statistics - a sample of men's heights was taken. The average height was 68.5 ...

statistics - Suppose that the heights of female adults in the US are normally ...

Statistics - The heights of 18 year old men are approximately normally ...

statistics - The heights of American women aged 18 to 24 are normally ...