3. We found the mean number of years of education is 13.05 with a standard deviation of 3.02 among a total of 2,500 GSS respondents. Assuming that years of education is normally distributed, answer the following questions. a) If you have 13.-77 years of education, 1) what is your z score? 2) what is your percentile value? b) If your friend is in the 70th percentile, how many years of education does she have? c) How many people have between your years of education (i.e., 13.77) and your friend's years of education (i.e., 80th percentile)? d) Construct and interpret an estimate of the population mean number of years of edu- cation at the 95% level.

3. We found the mean number of years of education is 13.05 with a standard deviation of 3.02 among a total of 2,500 GSS respondents. Assuming that years of education is normally distributed, answer the following questions. a) If you have 13.-77 years of education, 1) what is your z score? 2) what is your percentile value? b) If your friend is in the 70th percentile, how many years of education does she have? c) How many people have between your years of education (i.e., 13.77) and your friend's years of education (i.e., 80th percentile)? d) Construct and interpret an estimate of the population mean number of years of edu- cation at the 95% level.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

The weights of tablets are normally distributed with mean 254 mg and standard deviation 4 mg. If exactly 1% of tablets are ‘overweight’, then what weight makes the tablet ‘overweight’?
A standardized test has a pop. mean of 152 and a standard deviation of 16. What would be the median raw score for this exam?
Assuming that the heights of college women are normally distributed with a mean of 62 inches and standard deviations 3.5 inches, what percentage of woman are taller than 62 inches?
Suppose that annual precipitation is normally distributed, with mean 50 inches, and standard deviation 12 inches. Find the 65th percentile of the precipitation distribution
Suppose the durations of human pregnancies follow a mound-shaped distribution with a mean of 266 days and a standard deviation of 18 days. a. Approximately what percentage of human pregnancies last between 248 and 284 days? b. Between what two values will the durations of 95% of all human pregnancies fall? Answer in days
Suppose that the antenna lengths of woodlice are approximately normally distributed with a mean of 0.22 inches and a standard deviation of 0.05 inches. What proportion of woodlice have antenna lengths that are at most 0.18 inches? Round your answer to at least four decimal places.
Suppose the distribution of typing speeds in words per minute for experienced typists can be approximated by a normal curve with a mean of 60 wpm and a standard deviation of 15 wpm. To be considered for a position an applicant needs to have a typing speed of at least 70 wpm. If 62 experienced typists apply for the job, how many of these would be considered based on their typing speed?
The heights of children ages 3-5 are approximately normally distributed with a mean of 40 inches and a standard deviation of 2.5 inches. What percent of children are between 39 and 42 inches?
the height of American men is normally distributed with a mean of 70 in and a standard deviation of 3 in. what are the heights in inches that define the most extreme 8% of the population of American men?
The director of research and development is testing a new medicine. She wants to know if there is evidence at the 0.02 level that the medicine relieves pain in more than 346 seconds. For a sample of 58 patients, the mean time in which the medicine relieved pain was 352 seconds. Assume the population standard deviation is 23. Find the P-value of the test statistic. 囲 Tables E Keypad Keyboard Shortcuts 0.0582 %3D IX
3. Based on a survey, the average monthly allowance of the international students in Oxford University is ₱25,000 with a standard deviation of ₱1,000.00. The monthly allowance is normally distributed, what is the z-score of an international student with a monthly allowance of ₱23,000.
Suppose the distribution of heights of a group of 300 children is normal, with a mean of 150 centimeters and a standard deviation of 12 centimeters. About how many of these children are taller than 162 centimeters? children