Solve for what is asked with complete solutions and statement 1. Scores on the Wechsler Adult Intelligence Scale for the 20 to 34 age group are approximately normally distributed with mean equal to 110 and standard deviation equal to 25. If we selected 100 people at random, what is the probability that this group will have an average score of 125 or above? 2. It is known that a healthy human body has an average temperature of 98.6 degrees farenheit, with a standard deviation of 0.95 degrees farenheit. Sixty healthy humans are selected at random. What is the probability that their temperatures average at least 99.1 degrees farenheit? 3. A particular brand of sugar is sold in 5-lb packages. The weight of sugar in these packages can be assumed to ba normally distributed with mean 5 lb and standard deviation 2 lb. What is the probability that the mean weight of sugar in 15 randomly selected packages will be within 2 lb and 5 lb?
Solve for what is asked with complete solutions and statement
1. Scores on the Wechsler Adult Intelligence Scale for the 20 to 34 age group are approximately
2. It is known that a healthy human body has an average temperature of 98.6 degrees farenheit, with a standard deviation of 0.95 degrees farenheit. Sixty healthy humans are selected at random. What is the probability that their temperatures average at least 99.1 degrees farenheit?
3. A particular brand of sugar is sold in 5-lb packages. The weight of sugar in these packages can be assumed to ba normally distributed with mean 5 lb and standard deviation 2 lb. What is the probability that the mean weight of sugar in 15 randomly selected packages will be within 2 lb and 5 lb?
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