A survey found that women's heights are normally distributed with mean 63.4 in. and standard deviation 2.4 in. The survey also found that men's heights are normally distributed with a mean 68.1 in. and standard deviation 2.8 . Complete parts a through c below. a. Most of the live characters at an amusement park have height requirements with a minimum of 4 ft 9 in . and a maximum of 6 ft 2 in . Find the percentage of women meeting the height requirement. The percentage of women who meet the height requirement is \( 99.62 \% \). (Round to two decimal places as needed ) b. Find the percentage of men meeting the height requirement. The percentage of men who meet the height requirement is \( 98.26 \% \). (Round to two decimal places as needed) c. If the height requirements are changed to exclude only the tallest \( 5 \% \) of men and the shortest \( 5 \% \) of women, what are the new height requirements? The new height requirements are at least \( \square \) in and at most \( \square \) in]. (Round to one decimal place as needed)
Solución de inteligencia artificial de Upstudy
Responder
Solución

¡Inicia sesión para desbloquear respuestas gratis!
Una plataforma de aprendizaje en la que confían millones de estudiantes y profesores reales.

Respondido por UpStudy AI y revisado por un tutor profesional
Mind Expander
When considering the new height requirements, you can use the z-scores for the 5th and 95th percentiles. For women (5% bottom): the z-score is approximately -1.645, giving a height of about \( 58.6 \) in. For men (5% top): the z-score is approximately 1.645, giving a height of about \( 72.5 \) in. Therefore, the new height requirements are at least \( 58.6 \) in and at most \( 72.5 \) in. Additionally, the magic of normally distributed data lies in its predictable nature! The empirical rule states that about 68% of observations lie within one standard deviation of the mean, and around 95% within two. So, if you understand the average and the spread of the heights of any group, you can make educated guesses about where most people will fall. It’s like having a cheat sheet for human heights!
