In a job fair, 3000 applicants applied for a job. Their mean age wasformed to be 28 with a standard deviation of 4 years.a. Draw a normal curve distribution showing the z scores and the rawScores.b. How many applicants are below 20 years old?c. How many applicants are above 32 years old?d. How many have ages between 24 and 32 years?e. Find the age such that 75% is below it.

We have given that Mean(µ) = Standard deviations (σ) = 1 N = 3000

Answered: In a job fair, 3000 applicants applied…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Similar questions

A sample of nine tourists indicated how much they spent on accommodation per night (in dollars) at a popular holiday destination. The amounts they paid for accommodation were as follows: 313.6 151.6 598.5 222.7 293.9 272.6 198.5 382.0 188.7 What is the difference between the median and the mean of the sample (correct to 2 decimal places)? Use (median - mean) as the order of the difference. P Note:- Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism. Answer completely. You will get up vote for sure.
A teacher gives the following assignment to 200 students: Check the local newspaper every morning for a week and count how many times the word "gun" is mentioned on the "local news" pages. At the end of the week, the students report their totals. The mean result is 85, with a standard deviation of 8. The distribution of scores is normal. a. How many students would be expected to count fewer than 70 cases? Show the solution and draw the normal curve b. How many students would be expected to count between 80 and 90 cases? Show the solution and draw the normal curve c. How many students would be expected to count higher than 60 cases? Show the solution and draw the normal curve
2. In a departmental examination on statistics, the mean grade was 64 and the standard deviation was 10. If the grades are approximately normally distributed and 40 students got grades between 60 and 70, how many students took the examination?
Solve for the mean, median, mode, midrange, range and sample standard deviation of the following items. Write NONE if there is no possible answer. The ones in the parenthesis will say the concept of rounding off.
In the 1992 presidential election, Alaska's 40 election districts averaged 1833 votes per district for President Clinton. The standard deviation was 558. (There are only 40 election districts in Alaska.) The distribution of the votes per district for President Clinton was bell-shaped. Let X = number of votes for President Clinton for an election district. (Source: The World Almanac and Book of Facts) Round all answers except part e. to 4 decimal places.a. What is the distribution of X? X ~ N(Correct,Correct) b. Is 1833 a population mean or a sample mean? Select an answer Sample Mean Population Mean c. Find the probability that a randomly selected district had fewer than 1915 votes for President Clinton. d. Find the probability that a randomly selected district had between 1813 and 1922 votes for President Clinton. e. Find the third quartile for votes for President Clinton. Round your answer to the nearest whole number.
2. All students in a physical education class completed a basketball free-throw shooting event and the highest number of shots made was 32. The next day a student who had just transferred into the school completed the event, making 35 shots. Indicate whether adding the new student's score to the rest of the data made each of these summary statistics increase, decrease, or stay about the same: а. mean b. median с. range d. IQR e. standard deviation
A. What's the standard deviation for data set 1. B. What's the standard deviation for data set 2. C. What's the standard deviation for data set 3.
The following data set represents performance scores from a sample of participants in a psychology experiment. What is the standard deviation of the data set below? Enter your answer in number. If you have decimals, round to the closest whole number. Score: 67, 87, 96, 59, 70, 83, 92, 78, 84, 79, 85
Give the TI commands to find the mean, median, and standard deviation and compare to the original post when done by hand. Mean = 14.1 + 6.4 + 9.6 + 21.2 + 16.8 + 2.2 + 6.0 = 76.3 / 7 = 10.9in. Median = 2.2, 6.0, 6.4, 9.6, 14.1, 16.8, 21.2 = 9.6in. How can I find the mean and median on TI caculator?
C6. When taking a random sample from a very large population, how does the standard error of the mean change when a. the sample size is increased from 100 to 1,600? b. the sample size is decreased from 300 to 150? c. the sample size is multiplied by 4?
In the 1992 presidential election, Alaska's 40 election districts averaged 1824 votes per district for President Clinton. The standard deviation was 573. (There are only 40 election districts in Alaska.) The distribution of the votes per district for President Clinton was bell-shaped. Let X = number of votes for President Clinton for an election district. (Source: The World Almanac and Book of Facts) Round all answers except part e. to 4 decimal places.a. What is the distribution of X? X ~ N(,)b. Is 1824 a population mean or a sample mean? c. Find the probability that a randomly selected district had fewer than 1872 votes for President Clinton. d. Find the probability that a randomly selected district had between 1842 and 2091 votes for President Clinton. e. Find the first quartile for votes for President Clinton. Round your answer to the nearest whole number.
a. The standard deviation of 25 scores is 10, the mean is 29, the median is 24 and the mode is 23. What is the coefficient of skewness? Describe the distribution. b. The following are scores of 8 students in Algebra: 89, 88, 77, 84, 83, 92, 91 and 96. Find the coefficient of skewness.

SEE MORE QUESTIONS

Recommended textbooks for you

A First Course in Probability (10th Edition)

Probability

ISBN:

9780134753119

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability

Probability

ISBN:

9780321794772

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability (10th Edition)

Probability

ISBN:

9780134753119

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability

Probability

ISBN:

9780321794772

Author:

Sheldon Ross

Publisher:

PEARSON

SEE MORE TEXTBOOKS