1.88 x 10^6/ 2000 ANSWER IN SCIENTIFIC NOTATION
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Answer:
a. The percentage of adult men that will fit through the door without bending is 0.
b. The percentage of adult women that will fit through the door without bending is 0.
c. No, it is not adequate. There must be another technical reasons to not use a larger door.
d. The doorway height that would allow 60% of men to fit without bending is 70.1 inches.
Step-by-step explanation:
a. To fit throught the door, the height has to be under 51.6. To calculate this proportion, we have to calculate the z-score for X=51.6 for the distribution of men's height N(μ=69.5, σ=2.4).
We can calculate the z-score as:
The percentage of adult men that will fit through the door without bending is 0.
b. To fit throught the door, the height has to be under 51.6. To calculate this proportion, we have to calculate the z-score for X=51.6 for the distribution of women's height N(μ=63.8, σ=2.6).
We can calculate the z-score as:
The percentage of adult women that will fit through the door without bending is 0.
c. No, it is not adequate. There must be another technical reasons to not use a larger door.
d. We can calculate this finding a z-value z1 for which P(z<z1)=0.60.
Looking in a standard normal distribution table, the value for z1 is z1=0.25335.
Then, transforming to our adult men's height distribution, we have:
The doorway height that would allow 60% of men to fit without bending is 70.1 inches.