Question 1

A random sample of n = 6 scores is selected from a population.Which of the following distributions will definitely be normal?

Accepted Answer

A) The scores in the sample will definitely form a normal distribution. 
B) The scores in the population will definitely form a normal distribution. 
C) The distribution of sample means will definitely form a normal distribution. 
D) None of the distributions (the sample, population, or distribution of sample means) will definitely be normal. 
A) The scores in the sample will definitely form a normal distribution. 
B) The scores in the population will definitely form a normal distribution. 
C) The distribution of sample means will definitely form a normal distribution. 
D) None of the distributions (the sample, population, or distribution of sample means) will definitely be normal.

Question 2

What is the expected value of M?

Accepted Answer

A) The sample mean 
B) The sample standard deviation 
C) The mean of the distribution of sample means 
D) The standard deviation of the distribution of sample means 
A) The sample mean 
B) The sample standard deviation 
C) The mean of the distribution of sample means 
D) The standard deviation of the distribution of sample means

Question 3

For a population with µ = 50 and ? = 6,describe the shape,the mean,and the standard deviation for the distribution of sample means for each of the following:
A)Samples of n = 4.
B)Samples of n = 36.

Accepted Answer

A.UNKNOWN SHAPE WITH

Question 4

A sample is selected from a normal population with μ = 50 and σ = 12.Which of the following samples would be considered extreme and unrepresentative for this population?

Accepted Answer

A) M = 53 and n = 16 
B) M = 53 and n = 4 
C) M = 56 and n = 16 
D) M = 56 and n = 4 
A) M = 53 and n = 16 
B) M = 53 and n = 4 
C) M = 56 and n = 16 
D) M = 56 and n = 4

A random sample of n = 6 scores is selected from a population.Which of the following distributions will definitely be normal?

What is the expected value of M?

For a population with µ = 50 and ? = 6,describe the shape,the mean,and the standard deviation for the distribution of sample means for each of the following: A)Samples of n = 4. B)Samples of n = 36.

A sample is selected from a normal population with μ = 50 and σ = 12.Which of the following samples would be considered extreme and unrepresentative for this population?

Introduction to Statistics.

Frequency Distributions.

Central Tendency.

Variability.

z-Scores: Location of Scores and Standardized Distributions.

Probability.

Introduction to Hypothesis Testing.

Introduction to the t Statistic

The t Test for Two Independent Samples

The t Test for Two Related Samples

Introduction to Analysis of Variance

Repeated-Measures and Two-Factor Analysis of Variance

Correlation and Regression.

The Chi-Square Statistic: Tests for Goodness of Fit and Independence

Filters

Exam 7: Probability and Samples: The Distribution of Sample Means.

A random sample of n = 6 scores is selected from a population.Which of the following distributions will definitely be normal?

What is the expected value of M?

For a population with µ = 50 and ? = 6,describe the shape,the mean,and the standard deviation for the distribution of sample means for each of the following: A)Samples of n = 4. B)Samples of n = 36.

A sample is selected from a normal population with μ = 50 and σ = 12.Which of the following samples would be considered extreme and unrepresentative for this population?

Introduction to Statistics.

Frequency Distributions.

Central Tendency.

Variability.

z-Scores: Location of Scores and Standardized Distributions.

Probability.

Introduction to Hypothesis Testing.

Introduction to the t Statistic

The t Test for Two Independent Samples

The t Test for Two Related Samples

Introduction to Analysis of Variance

Repeated-Measures and Two-Factor Analysis of Variance

Correlation and Regression.

The Chi-Square Statistic: Tests for Goodness of Fit and Independence

Filters