Homework Answers
Add Answer to:
Across Canada, a mean number of 7680.5 students from each University consider registering for evening classes...
21. Consider a university with a population mean GPA of 2.95, a standard deviation of 2,...
21. Consider a university with a population mean GPA of 2.95, a standard deviation of 2, and a sampling distribution of all possible samples of size 100. The mean of the sample means is equal to 2.95 e) 025
please answer 22, thanks 21. Consider a university with a population mean GPA of 2.95, a...
please answer 22, thanks
21. Consider a university with a population mean GPA of 2.95, a standard deviation of .2, and a sampling distribution of all possible samples of size 100. The mean of the sample means is equal to: a) 245b) 2 .02 2.95 e) .025 Same as above, the standard deviation of the sample means is equal to: a)2.45 22. b) .2 d) 2.95 e) .025
A researcher was asked to estimate mean GPA of all students at Pace University in 2016. He has selected at random 30 students and calculated their mean GPA. It was found to be equal to 3.2. The sampl...
A researcher was asked to estimate mean GPA of all students at Pace University in 2016. He has selected at random 30 students and calculated their mean GPA. It was found to be equal to 3.2. The sample size e) f) Number of classes the researcher can use to summarize his findings (hint: use 2>n) g) Can the researcher apply central limit theorem? (yes /no) Explain h) What is the shape of this sampling distribution? (normal / approximately normal) (hint:...
7. At a large university, the mean age of students is 22.3 years, and standard deviation...
7. At a large university, the mean age of students is 22.3 years, and standard deviation is 4 years. Random samples of 64 students are drawn. (a) What type of distribution is the sampling distribution of mean and why? (b) What is the probability that the average age of these 64 students is greater than 23 years? (c) What is the probability that the total age of a class of 24 students will be less than 540? (5 points)
The mean commute time for all commuting students of a university is 23 minutes with a...
The mean commute time for all commuting students of a university is 23 minutes with a population standard deviation of 4 minutes. A random sample of 63 driving times of commuters is taken. ̅ a) [2pts] Is the sampling distribution of the sample mean ? normal? Circle the number of i. ii. iii. iv. b) the best answer. Yes, because the sample size n is greater than 30. No, because the parent population of the data is not said to...
9. Consider the variable x = time required for a college student to complete a standardized...
9. Consider the variable x = time required for a college student to complete a standardized exam. Suppose that for the population of students at a particular university, the distribution of x is well approximated by a normal curve with mean 45 min and standard deviation 5 min. Consider random samples of size 25 from the population. a. Sketch the sampling distribution of the sample mean. You need not get the graph perfectly correct, but should clearly indicate different aspects...
The heights of 1000 students are approximately normally distributed with a mean of 174.5 centimeters and...
The heights of 1000 students are approximately normally distributed with a mean of 174.5 centimeters and a standard deviation of 6.9 centimeters. Suppose 200 random samples of size 25 are drawn from this population and the means recorded to the nearest tenth of a centimeter. Determine (a) the mean and standard deviation of the sampling distribution of X; (b) the number of sample means that fall between 171 and 177 cm.
Question 8 (10%) The heights of 1000 students are approximately normally distributed with a mean of...
Question 8 (10%) The heights of 1000 students are approximately normally distributed with a mean of 174.5 centimeters and a standard deviation of 6.9 centimeters. Suppose 200 random samples of size 25 each are drawn from this population (with replacement), and the means recorded to the nearest tenth of a centimeter. 1. Determine the mean and standard deviation of the sampling distribution of samples mean. 2. Determine the number of sample means that fall between 172.5 and 175.8 centimeters inclusive....
The heights of 1000 students are approximately normally distributed with a mean of 174.5 centimeters and...
The heights of 1000 students are approximately normally distributed with a mean of 174.5 centimeters and a standard deviation of 7.5 centimeters. Suppose 200 random samples of size 6 are drawn from this population and the means recorded to the nearest tenth of a centimeter. Determine (a) the mean and standard deviation of the sampling distribution of X¯; (b) the number of sample means that fall between 172.5 and 175.8 centimeters inclusive; (c) the number of sample means falling below...
The number of pizzas consumed per month by university students is normally distributed with a mean...
The number of pizzas consumed per month by university students is normally distributed with a mean of 11 and a standard deviation of 3. Use Excel to answer the following questions: A. What proportion of students consume more than 14 pizzas per month? Probability = .158655 B. What is the probability that in a random sample of size 10, a total of more than 90 pizzas are consumed? (Hint: What is the mean number of pizzas consumed by the sample...
21. Consider a university with a population mean GPA of 2.95, a standard deviation of 2, and a sampling distribution of all possible samples of size 100. The mean of the sample means is equal to 2.95 e) 025
please answer 22, thanks
21. Consider a university with a population mean GPA of 2.95, a standard deviation of .2, and a sampling distribution of all possible samples of size 100. The mean of the sample means is equal to: a) 245b) 2 .02 2.95 e) .025 Same as above, the standard deviation of the sample means is equal to: a)2.45 22. b) .2 d) 2.95 e) .025
A researcher was asked to estimate mean GPA of all students at Pace University in 2016. He has selected at random 30 students and calculated their mean GPA. It was found to be equal to 3.2. The sample size e) f) Number of classes the researcher can use to summarize his findings (hint: use 2>n) g) Can the researcher apply central limit theorem? (yes /no) Explain h) What is the shape of this sampling distribution? (normal / approximately normal) (hint:...
7. At a large university, the mean age of students is 22.3 years, and standard deviation is 4 years. Random samples of 64 students are drawn. (a) What type of distribution is the sampling distribution of mean and why? (b) What is the probability that the average age of these 64 students is greater than 23 years? (c) What is the probability that the total age of a class of 24 students will be less than 540? (5 points)
The heights of 1000 students are approximately normally distributed with a mean of 174.5 centimeters and a standard deviation of 6.9 centimeters. Suppose 200 random samples of size 25 are drawn from this population and the means recorded to the nearest tenth of a centimeter. Determine (a) the mean and standard deviation of the sampling distribution of X; (b) the number of sample means that fall between 171 and 177 cm.
Question 8 (10%) The heights of 1000 students are approximately normally distributed with a mean of 174.5 centimeters and a standard deviation of 6.9 centimeters. Suppose 200 random samples of size 25 each are drawn from this population (with replacement), and the means recorded to the nearest tenth of a centimeter. 1. Determine the mean and standard deviation of the sampling distribution of samples mean. 2. Determine the number of sample means that fall between 172.5 and 175.8 centimeters inclusive....
Most questions answered within 3 hours.
-
Question Three
Suppose you as project manager are using the Waterfall
development methodology on a large...
asked 57 minutes ago -
Which statement is not true about welfare in Canada?
A.Benefits typically vary based on one's ability...
asked 1 hour ago -
Please help me with FLOWCHART and UML diagram for class,
thank you!
#include <iostream>
#include <fstream>...
asked 2 hours ago -
3. Describe the “logic circuit” of the Lac operon. Which
proteins are bound or not to...
asked 2 hours ago -
Ayesha’s adjusted gross income is $60,000 in 2019. She donated a
piece of artwork with a...
asked 2 hours ago -
For Dijkstra’s shortest path algorithm:
a. Give the Big-O time for Dijkstra’s shortest path algorithm
and...
asked 2 hours ago -
Phosphorus violates the 'octet rule' in biological molecules,
forming more covalent bonds than expected based on...
asked 2 hours ago -
A 1.3 eV electron has a 10-4 probability of tunneling
through a 2.4 eV potential barrier....
asked 2 hours ago -
What is the one ingredient that is common to being successful
with all stakeholders?
profit
trust...
asked 2 hours ago -
Write an assembly language 32 bit program that reads in lines of
text by a .txt...
asked 2 hours ago -
what is the density ( in g/L) of hydrogen gas at 29 degrees C and a...
asked 3 hours ago -
5-6. You are considering three investment alternatives for some
spare cash: Old Reliable Corporation stock (A1),...
asked 2 hours ago