Question: Practice Problems (3-4): Sampling Distribution 3. Students took a test in Physics and the final grades have a mean of 7D and a standard deviation

Practice Problems (3-4): Sampling Distribution

3. Students took a test in Physics and the final grades have a mean of 7D and a standard deviation of 10. If we can approximate the distribution of these grades by a normal distribution, what is the probability that a group of 5 students will pass the test (score 2 60)? 4. A population mean of 172 cm and a standard deviation of 10 cm. Find the probability that a group of 10 men will have a height ranging from 163 cm to 178 cm. assume height is normally distributed

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

Practice Problems (3-4): Sampling Distribution 3. Students took a test in Physics and the final grades have a mean of 70 and a standard deviation of 10. If we can approximate the distribution of...

1) Suppose X ~ N130, 25 . Find; a) P(X 140) b) P(X 120) c) P(130 X 135) 2) The random variable X is normally distributed with mean 500 and standard deviation 100. Find; (i) P(X 400) , (ii) P(X 620)...

Correct answers only. 1) Suppose X - N(130, 25). Find; a) P(X 120) c) P(130 620) (iii) the 90" percentile (iv) the lower and upper quartiles. Use graphs with labels to illustrate your answers. 3) A...

1)A large group of students took a test in Physics and the final grades have a mean of 70 and a standard deviation of 10. If we can approximate the distribution of these grades by a normal...

1)The normal distribution is a? Continuous distribution Discrete distribution Positively skewed distribution Binomial distribution 2)Which of the following statements is correct regarding the...

First problem: Given normal-scoreSecond problem: Given percentileSubject: MAT 112: Statistics andProbability Topic: Normal Distribution, Areas under the normal curve, determining probabilities using...

A large group of students took a test in Physics and the final grades have a mean of 70 and a standard deviation of 10. If we can approximate the distribution of these grades by a normal...

1) A large group of students took a test in Physics and the final grades have a mean of 70 and a standard deviation of 10. If we can approximate the distribution of these grades by a Gaussian...

5) A large group of students took a test in Physics and the final grades have a mean of 70 and a standard deviation of 10. If we can approximate the distribution of these grades by a normal...

7 a. What is an Index number? (1mk) b. State four uses of index Numbers (2mks) c. Explain 4 limitations of index numbers (2mks) d. The Kenya Bureau of statistics has provided the flowing data to...

The measurement of assets and liabilities on the balance sheet was previously a secondary goal to income determination. As a result, various measurement techniques arose to disclose assets and...

Consider the National Football League data in Exercise 11-4. (a) Test for significance of regression using a = 0.01. Find the P-value for this test. What conclusions can you draw? (b) Estimate the...

Which of the following is reported as a current liability? A long - term debt maturing currently that is to be paid with cash in a sinking fund A long - term debt maturing currently that is to be...

. Some company and product names contain unconventional capitalization; for example, eBay, PeopleSoft, PowerPoint, and QuickBooks. If you were writing to these companies, would it be important to get...

4. Give examples of how a communication situation can change from a win-lose to a winwin situation.

3. Why is the following statement, If the Church is a context, it is because it is inside our heads, correct?

1. Discuss the following statements: a) Jeppe drinks because Holberg (the author) forced him to. b) When the soup you are served tastes bad, complain to the cookbook publisher. c) The purpose of an...