stephroperez18
New member
- Joined
- Jul 19, 2020
- Messages
- 1
Engineers must consider the diameters of heads when designing helmets. The company researchers have determined that the population of potential clientele have head diameters that are normally distributed with a mean of 5.7-in and a standard deviation of 1-in. Due to financial constraints, the helmets will be designed to fit all men except those with head diameters that are in the smallest 3.1% or largest 3.1%.
What is the minimum head diameter that will fit the clientele?
min =
What is the maximum head diameter that will fit the clientele?
max =
Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
Where I get stuck at is solving for the extra number we need such as the the corresponding left and right z-scores, I look at the z-score table but the numbers don't match up.
What is the minimum head diameter that will fit the clientele?
min =
What is the maximum head diameter that will fit the clientele?
max =
Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
Where I get stuck at is solving for the extra number we need such as the the corresponding left and right z-scores, I look at the z-score table but the numbers don't match up.
