At one college GPA’s are normally distributed with a mean of 2.6 and a standard deviation...
A population is normally distributed with a mean of 55 and a standard deviation of 4. Using the Empirical Rule, approximately what percentage of data values fall between 51 and 59? Please show your calculations.
Assuming that the heights of college women are normally distributed with mean 62 inches and standard deviation 2.6 inches, answer the following questions. (Hint: Use the figure below with mean and standard deviation o.) Area Under a Normal Curve 34% 34% 13.5% 2.35% (a) What percentage of women are taller than 62 inches? 50 % (b) What percentage of women are shorter than 62 inches? (c) What percentage of women are between 59.4 inches and 64.6 inches? (d) What percentage...
28) At one college, GPA's are normally distributed with a mean of 2.7 and a standard deviation of 0.4. What percentage of students at the college have a GPA between 2.3 and 3.1?
In a normally distributed data set with a mean of 22 and a standard deviation of 4.1, what percentage of the data would be between 17.9 and 26.1? a)95% based on the Empirical Rule b)99.7% based on the Empirical Rule c)68% based on the Empirical Rule d)68% based on the histogram
SAT verbal scores are normally distributed with a mean of 489 and a standard deviation of 93. Use the empirical rule (also called 68-95-99.7 rule) to determine what percentage of the scores lie. a) between 210 and 675. b). Above 675?
Scores on a test are normally distributed with a mean of 70 and standard deviation of 10. Applying the Empirical Rule, we would expect the middle 95% of scores to fall between what two values? 40 and 100 50 and 90 55 and 85 60 and 80 65 and 75
The pulse rates of 200 college men are normally distributed with a mean of 72 and standard deviation 6. Using the empirical rule, find (a) the percentage of college men whose pulse rates are between 66 and 84. Do not write the percent sign. (b) the percentage of college men whose pulse rates are at most 60. Do not write the percent sign. (c) the number of college men whose pulse rates are at least 78. Do not give answer...
A random variable X is normally distributed with mean 100 and standard deviation 7. What is the 67th percentile of the distribution of X? (PLEASE Use the empirical rule.) (a) 103.08 (b) 121.56 (c) .44 (d) 13.08 (e) 51.00
College students annual earnings are normally distributed with standard deviation σ-$800. If the mean earning for gro construct a 95% confidence interval estimate of the mean annual earnings for all college students. 10. up of 64 students is $4000,
A survey found that women's heights are normally distributed with mean 63.1 in. and standard deviation 3.5 in. The survey also found that men's heights are normally distributed with mean 67.4 in. and standard deviation 3.8 in. Consider an executive jet that seats six with a doorway height of 56.5 in. Complete parts (a) through (c) below. a. What percentage of adult men can fit through the door without bending? %. The percentage of men who can fit without bending...