Question: Health status of UNCC students was investigated in the research study. The distribution of fasting glucose (FG) was approximately normally distributed with mean 97 and standard deviation of 10. During 12 days, a sample of fifty students was selected. What is the probability that at least 6 students have FG < 87? Selected values...

Question: In a study of 1000 two parent families, a researcher found the mean height of the husbands was 68 inches with a standard deviation of 2.7 inches. The mean height of the wives was 63 inches with a standard deviation of 2.5 inches. Assume that the populations of husbands and wives both are normally...

Question: You are in charge of reviewing the IQs of military personnel stationed at Rota. You know that IQ scores are normally distributed with a mean of 100 and standard deviation of 15. Base housing has 200 occupants and you have determined that results of their IQ testing mimic the population as a whole. At...

Question: ROUNDED TO WHOLE NUMBER ANSWERS. Last semester in the undergraduate course I was teaching I decided that I would curve the course and, thus, I had to determine where the break in grades would occur. One hundred students were enrolled in the course and the points earned were normally distributed with a mean of...

Question: A Mid-First Bank loan officer rates applicants for credit. The ratings are normally distributed with a mean of 200 and a standard deviation of 50. Find the P60.

Question: A coping skill scale has mean of 65, a standard deviation of 13, and standard error of measurement of 11: a. You scored 70. What is your z-score? b. What is your T-score? c. If you take this test repeatedly, you will expect approximately 68 % of your RAW scores would fall between __...

Question: 41 The time to complete a construction project is normally distributed with a mean of 60 weeks and a standard deviation of 4 weeks. (a) What is the probability the project will be finished in 62 weeks or less? (b) What is the probability the project will be finished in 66 weeks or less?...

Question: The aircraft turnaround time is defined as the time required in preparing an aircraft for its next flight after arriving at a terminal. A local airline thinks that their turnaround time follows normal distribution with a mean (µ) of 35 minutes and standard deviation (σ) of 5 minutes. (a) A flight has just arrived...

Question: Use the concepts learned about the standard normal distribution (z distribution) to answer the following questions. (2 pts each) a. What is the probability of being more than 1.68 standard deviations above the mean? P(z > 1.68). b. What value of z represents the 20th percentile? c. What two z values bound the middle...

Question: In the U.S., adult male heights are normally distributed with a mean of 70 inches and a standard deviation of 2.5 inches. The following questions are about U.S. adult males. (2 pts each) a. What percent of males are more than 84 inches tall (7 feet)? b. John is 60 inches (5 feet) tall....