Suppose a simple random sample of size n= 38 is obtained from a population withu= 65 and o = 18. a) What must be true regarding the distribution of the population in order to use the normal model to compute probabilities regarding the sample mean? Assuming the normal model can be used, describe the sampling dist b) Assuming the normal model can be used, determine P(x< 69.4). c) Assuming the normal model can be used, determine P(x2 67.3). Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). a) What must be true regarding the distribution of the population? O A. Since the sample size is large enough, the population distribution does not need to be normal. O B. The population must be normally distributed. O C. The population must be normally distributed and the sample size must be large. O D. There are no requirements on the shape of the distribution of the population.
Suppose a simple random sample of size n= 38 is obtained from a population withu= 65 and o = 18. a) What must be true regarding the distribution of the population in order to use the normal model to compute probabilities regarding the sample mean? Assuming the normal model can be used, describe the sampling dist b) Assuming the normal model can be used, determine P(x< 69.4). c) Assuming the normal model can be used, determine P(x2 67.3). Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). a) What must be true regarding the distribution of the population? O A. Since the sample size is large enough, the population distribution does not need to be normal. O B. The population must be normally distributed. O C. The population must be normally distributed and the sample size must be large. O D. There are no requirements on the shape of the distribution of the population.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
Related questions
Question
Transcribed Image Text:Suppose a simple random sample of size n = 38 is obtained from a population with u = 65 and o = 18.
(a) What must be true regarding the distribution of the population in order to use the normal model to compute probabilities regarding the sample mean? Assuming the normal model can be used, describe the sampling distributi
(b) Assuming the normal model can be used, determine P(x < 69.4).
(c) Assuming the normal model can be used, determine P(x2 67.3).
Click here to view the standard normal distribution table (page 1).
Click here to view the standard normal distribution table (page 2).
(a) What must be true regarding the distribution of the population?
O A. Since the sample size is large enough, the population distribution does not
need to be normal,
O B. The population must be normally distributed.
OC. The population must be normally distributed and the sample size must be large.
O D. There are no requirements on the shape of the distribution of the population.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
Recommended textbooks for you
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill