3. Assume that military aircraft use ejection seats designed for men weighing between 145.4 lb and 203 lb. If women's weights are normally distributed with a mean of 178.5 lb and a standard deviation of 49.4 lb, what percentage of women have weights that are within those limits? Are many women excluded with those specifications?
3. Assume that military aircraft use ejection seats designed for men weighing between 145.4 lb and 203 lb. If women's weights are normally distributed with a mean of 178.5 lb and a standard deviation of 49.4 lb, what percentage of women have weights that are within those limits? Are many women excluded with those specifications?
Chapter5: Exponential And Logarithmic Functions
Section5.5: Exponential And Logarithmic Models
Problem 4ECP
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1.
Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those scores are
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75
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Question content area bottom
The area of the shaded region is
enter your response here
(Round to four decimal places as needed.)2.
Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15.
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83
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Question content area bottom
The area of the shaded region is
enter your response here
(Round to four decimal places as needed.)3. Assume that military aircraft use ejection seats designed for men weighing between 145.4 lb and 203 lb. If women's weights are normally distributed with a mean of 178.5 lb and a standard deviation of 49.4
lb, what percentage of women have weights that are within those limits? Are many women excluded with those specifications?
4. Assume that human body temperatures are normally distributed with a mean of 98.22°F and a standard deviation of 0.63°F.
a. A hospital uses 100.6°F as the lowest temperature considered to be a fever. What percentage of normal and healthy persons would be considered to have a fever? Does this percentage suggest that a cutoff of 100.6°F is appropriate?
b. Physicians want to select a minimum temperature for requiring further medical tests. What should that temperature be, if we want only 5.0% of healthy people to exceed it? (Such a result is a false positive, meaning that the test result ispositive, but the subject is not really sick.)
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