OR HIGH SCHOOLFor numbers 9 to 11, The principal of Mapavapa Integrated National High School claimedthat the average salary of their teachers is P24, 000 per month. A random sample of 15 teaehersin the school has a mean of P23, 220, and a standard deviation of P400.9. Identify the population mean.A. P24,000B. P23,220C. P400D. 1510. Identify the sample mean.A. P24,000B. P23,220C. P400D. 1511. In testing the principal's claim, can we use the t-distribution?A. Yes, because the population standard deviation is unknown, and the sample size is small.B. Yes, because the sample standard deviation is small, and variance is unknown.C. No, because the population standard deviation is greater than the sample standard deviation.D. No, because the sample size is too small for the given sample standard deviation.12. Which property of t-distribution is NOT a property of normal distribution?A. The t-distribution curve is bell-shaped.B. The t-distribution curve is symmetrical about zero.C. In t distribution, the variance is always greater than 1.D. The total area under the t distribution curve equal to 1.13. The following statements tell about the t-distribution EXCEPT4. The standard deviation of the t-distribution is equal to 1.3. As the degrees of freedom increase, the t-distribution tends to normal distribution

Given that Hypothesized (\mu)(μ) = 8424000 Sample Standard Deviation (s)(s) = 10400 Sample…

Answered: For numbers 9 to 11, The principal of…

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

Two teachers recorded test scores of a small group of students. What is the approximate difference in the standard deviations of the two teachers test scores? Bowman 69, 73, 79, 83, 93, 97, 98, 100 Gray 65, 70, 73, 75, 90, 93, 94, 95
the driving distances (miles) to wor of 30 people are shown below. assume the population standard deviation is 8 miles. Find: 12, 9, 7, 3, 27, 21, 2, 30, 7, 4, 1, 10, 2, 9, 2, 28, 7, 10, 13, 6, 13, 7, 3, 13, 6, 6, 3, 13 ,12, 16, 18 a) the point estimate of the population mean b) the margin of error for a 95% confidence interval c) contruct a 95% confidence interval for the population mean.
A teacher says that the top 20% of the class received an A on the last test. The scores were normally distributed with mean 66 and standard deviation 12. Find the minimum score required to get an A.
1. In a distribution of six scores, the deviations from the mean for five of the scores are +5, +3, +1, 0, and-3.What is the value of the deviation for the sixth score? 2. On the midterm exam in their anthropology course, Jan’s deviation score was +5, Kim’s was -12, andLeslie’s was 0.a) of these three, who did the best and who did the worst?b) the mean for the class was 80. What was the raw score for Jan, Kim, and Leslie?
Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard deviation of 15. Find P25, which is the IQ score separating the bottom 25% from the top 75%. Round your answer to nearest tenth.
The time is takes a studen to walk from the dorn to the chemistry lab follows roughly a Normal distrubtion with a mean of 20 minutes and a stardard deviation of 3 minutes. What porportion of students is faster than 15 minutes when walking from the dorm to the chemistry lab?
For a group of 200 candidates, the mean and standard deviation of scores were founds to be 40 and 15 respectively. Later on it was discovered that the score 43 and 35 were misread as 34 and 53 respectively. Find the corrected mean and standard deviation corresponding to the correct figures. 1
5. The average weight of a newborn baby is 7.5 lbs with a standard deviation of 1.25 lbs. The average weight of a newborn elephant is 244 lbs with a standard deviation of 15 lbs. Find the Coefficient of Variation for the baby and the elephant. What does the information tell you?
6. The three data sets have the same mean and range, but is the variation the same? Prove your answer by comput- ing the standard deviation. Assume the data were ob- tained from samples. a. 5, 7, 9, 11, 13, 15, 17 b. 5, 6, 7, 11, 15, 16, 17 c. 5, 5, 5, 11, 17, 17, 17
John Beale of Stanford, California, recorded the speeds of cars driving past his house, where the speed limit read 20 mph. The mean of 100 representative readings was 23.76 mph, with a standard deviation of 3.53 mph. a) How many standard deviations from the mean would a car going the speed limit be? b) Which would be more unusual, a car traveling 35 mph or one going 8 mph? a) A car traveling at the speed limit is from the mean. (Round to two decimal places as needed.) b) Choose the correct answer below and fill in the answer box(es) to complete your choice. (Round to two decimal places as needed.) OA. B. standard deviations O C. The car traveling 35 mph is more unusual. It is standard deviations from the mean, while the car traveling 8 mph is standard deviations from the mean. The car traveling 8 mph is more unusual. It is standard deviations from the mean, while the car traveling 35 mph is standard deviations from the mean. Both cars are equally unusual. Both cars are standard…
In 2011, the mean property crime rate (per 100,000 people) for 10 northeastern regions of a certain country was 2367. The standard deviation was 394. Assume the distribution of crime rates is unimodal and symmetric. What percentage of northeastern regions would you expect to have property crime rates between 1973 and 2761.

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS