## In the United States, the mean average height of adult women is approximately 65.5 inches, with a standard deviation of 2.5 inches. If heigh

Question

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

Lorem ipsum dolor sit amet, consectetur adipiscing elit.Morbi adipiscing gravdio, sit amet suscipit risus ultrices eu.Fusce viverra neque at purus laoreet consequa.Vivamus vulputate posuere nisl quis consequat.

## Answers ( No )

z = (x – mean) / SD

The z-score for x = 63 is: z = (63 – 65.5) / 2.5 = -1

The z-score for x = 70.5 is: z = (70.5 – 65.5) / 2.5 = 2

Therefore we need the probability that -1 < z < 2. This is equivalent to the probability that z < -1, subtracted from the probability that z < 2. From z-tables, we find that this is equal to 0.9772 – 0.1587 = 0.8185. This means that 81.85% of women’s heights fall within this range.