Question 1

'Reducing the advertising budget will reduce short-term sales performance'. State the direction of this hypothesis.

Accepted Answer

A)  Directional 
B)  Non-directional 
C)  Both 
D)  Not enough information given. 
A)  Directional 
B)  Non-directional 
C)  Both 
D)  Not enough information given. A

Question 2

A null hypothesis.

Accepted Answer

A)  States that the experimental treatment will have an effect. 
B)  Is rarely used in experiments. 
C)  Predicts that an experimental treatment will have no effect on a dependent variable of interest. 
D)  None of the above. 
A)  States that the experimental treatment will have an effect. 
B)  Is rarely used in experiments. 
C)  Predicts that an experimental treatment will have no effect on a dependent variable of interest. 
D)  None of the above. C

Question 3

Which of the following terms best describes the sentence: 'organizations with employee training programmes will not employ fewer men or women'.

Accepted Answer

A)  A directional hypothesis 
B)  An operational definition 
C)  A null hypothesis 
D)  A non-directional hypothesis 
A)  A directional hypothesis 
B)  An operational definition 
C)  A null hypothesis 
D)  A non-directional hypothesis D

Question 4

If we calculated that the correlation (i.e. the effect size) of company size and sales revenue for various organizations was r = .42, which expression would best describe this relationship?

Accepted Answer

A)  Small 
B)  Small to medium 
C)  Large 
D)  Medium to large 
A)  Small 
B)  Small to medium 
C)  Large 
D)  Medium to large

Question 5

What is a significance level?

Accepted Answer

A)  The level at which statistics finally become meaningful 
B)  The impact that reporting statistics incorrectly could have. 
C)  A pre-set level of probability what the results are correct 
D)  A pre-set level of probability at which it will be accepted that results are due to chance (or not). 
A)  The level at which statistics finally become meaningful 
B)  The impact that reporting statistics incorrectly could have. 
C)  A pre-set level of probability what the results are correct 
D)  A pre-set level of probability at which it will be accepted that results are due to chance (or not).

Question 6

What does a significant test statistic tell us?

Accepted Answer

A)  There is an important effect. 
B)  The hull hypothesis is false. 
C)  There is an effect in the population of sufficient magnitude to be scientifically interesting. 
D)  All of the above, 
A)  There is an important effect. 
B)  The hull hypothesis is false. 
C)  There is an effect in the population of sufficient magnitude to be scientifically interesting. 
D)  All of the above,

Question 7

A Type I error is when?

Accepted Answer

A)  We conclude that there is a meaningful effect in the population when in fact there is not. 
B)  We conclude that there is not a meaningful effect in the population when in fact there is. 
C)  We conclude that the test statistic is significant when in fact it is not. 
D)  The data we have typed into SPSS is different than the data collected. 
A)  We conclude that there is a meaningful effect in the population when in fact there is not. 
B)  We conclude that there is not a meaningful effect in the population when in fact there is. 
C)  We conclude that the test statistic is significant when in fact it is not. 
D)  The data we have typed into SPSS is different than the data collected.

Question 8

What is the conventional level of probability that is often accepted when conducting statistical tests in social science and business?

Accepted Answer

A)  0.1 
B)  0.05 
C)  0.5 
D)  0.001 
A)  0.1 
B)  0.05 
C)  0.5 
D)  0.001

Question 9

A frequency distribution in which low scores are most frequent (i.e. bars on the graph are highest on the left-hand side) is said to be.?

Accepted Answer

A)  Positively skewed 
B)  Leptokurtic 
C)  Platykurtic 
D)  Negatively skewed 
A)  Positively skewed 
B)  Leptokurtic 
C)  Platykurtic 
D)  Negatively skewed

Question 10

Which of the following is true about a 95% confidence interval of the mean for a sample of grocery shoppers rating their favourite store?

Accepted Answer

A)  95 out of 100 sample means will fall within the limits of the confidence interval. 
B)  There is a 95% chance that the population mean will fall within the limits of the confidence interval. 
C)  95 out of 100 population means will fall within the limits of the confidence interval. 
D)  There is a .05 probability that the population mean falls within the limits of the confidence interval 
A)  95 out of 100 sample means will fall within the limits of the confidence interval. 
B)  There is a 95% chance that the population mean will fall within the limits of the confidence interval. 
C)  95 out of 100 population means will fall within the limits of the confidence interval. 
D)  There is a .05 probability that the population mean falls within the limits of the confidence interval

Question 11

The standard deviation is the square root of?

Accepted Answer

A)  The coefficient of determination 
B)  Sum of squares 
C)  Variance 
D)  Range 
A)  The coefficient of determination 
B)  Sum of squares 
C)  Variance 
D)  Range

Question 12

If research suggests that the mean number of insurance quotations a person makes in a year is 26 with a standard deviation of 4, what is the z-score for a score of 18?

Accepted Answer

A)  -2 
B)  11 
C)  2 
D)  -1.41 
A)  -2 
B)  11 
C)  2 
D)  -1.41

Question 13

Which of these statements is correct about one- and two-tailed tests?

Accepted Answer

A)  A statistical model that tests a directional hypothesis is called a one-tailed test, whereas one testing a non-directional hypothesis is called a two-tailed test 
B)  A statistical model that tests a non-directional hypothesis is called a one-tailed test, whereas one testing a directional hypothesis is called a two-tailed test. 
C)  A two-tailed test is a more powerful test than a one-tailed test. 
D)  A one-tailed test is a more accurate test than a two-tailed test. 
A)  A statistical model that tests a directional hypothesis is called a one-tailed test, whereas one testing a non-directional hypothesis is called a two-tailed test 
B)  A statistical model that tests a non-directional hypothesis is called a one-tailed test, whereas one testing a directional hypothesis is called a two-tailed test. 
C)  A two-tailed test is a more powerful test than a one-tailed test. 
D)  A one-tailed test is a more accurate test than a two-tailed test.

Question 14

The aim of experimental research is to?

Accepted Answer

A)  Be a phenomenon 
B)  Cause a phenomenon 
C)  Investigate what caused a phenomenon 
D)  Prevent a phenomenon 
A)  Be a phenomenon 
B)  Cause a phenomenon 
C)  Investigate what caused a phenomenon 
D)  Prevent a phenomenon

Question 15

Which of these statements about statistical power is not true?

Accepted Answer

A)  Power is the ability of a test to detect an effect. 
B)  We can use power to determine how big a sample is required to detect an effect of a certain size. 
C)  Power is linked to the probability of making a Type I error. 
D)  All of the above are true. 
A)  Power is the ability of a test to detect an effect. 
B)  We can use power to determine how big a sample is required to detect an effect of a certain size. 
C)  Power is linked to the probability of making a Type I error. 
D)  All of the above are true.

'Reducing the advertising budget will reduce short-term sales performance'. State the direction of this hypothesis.

A null hypothesis.

Which of the following terms best describes the sentence: 'organizations with employee training programmes will not employ fewer men or women'.

If we calculated that the correlation (i.e. the effect size) of company size and sales revenue for various organizations was r = .42, which expression would best describe this relationship?

What is a significance level?

What does a significant test statistic tell us?

A Type I error is when?

What is the conventional level of probability that is often accepted when conducting statistical tests in social science and business?

A frequency distribution in which low scores are most frequent (i.e. bars on the graph are highest on the left-hand side) is said to be.?

Which of the following is true about a 95% confidence interval of the mean for a sample of grocery shoppers rating their favourite store?

The standard deviation is the square root of?

If research suggests that the mean number of insurance quotations a person makes in a year is 26 with a standard deviation of 4, what is the z-score for a score of 18?

Which of these statements is correct about one- and two-tailed tests?

The aim of experimental research is to?

Which of these statements about statistical power is not true?

The Spine of Statistics

The Phoenix of Statistics

The Ibm Spss Statistics Environment

Exploring Data With Graphs

Non-Parametric Models

Correlation

Regression

Comparing

Moderation, Mediation and Multicategory Predictors

Comparing Several Means

Analysis of Covariance

Factorial Anova

Repeated-Measures Designs

Mixed Design Anova

Multiple Analysis of Variance Manova

Exploratory Factor Analysis

Categorical Data

Logistic Regression

Multilevel Linear Models

Filters

Exam 1: Why Is My Evil Lecturer Forcing Me to Learn Statistic

'Reducing the advertising budget will reduce short-term sales performance'. State the direction of this hypothesis.

A null hypothesis.

Which of the following terms best describes the sentence: 'organizations with employee training programmes will not employ fewer men or women'.

If we calculated that the correlation (i.e. the effect size) of company size and sales revenue for various organizations was r = .42, which expression would best describe this relationship?

What is a significance level?

What does a significant test statistic tell us?

A Type I error is when?

What is the conventional level of probability that is often accepted when conducting statistical tests in social science and business?

A frequency distribution in which low scores are most frequent (i.e. bars on the graph are highest on the left-hand side) is said to be.?

Which of the following is true about a 95% confidence interval of the mean for a sample of grocery shoppers rating their favourite store?

The standard deviation is the square root of?

If research suggests that the mean number of insurance quotations a person makes in a year is 26 with a standard deviation of 4, what is the z-score for a score of 18?

Which of these statements is correct about one- and two-tailed tests?

The aim of experimental research is to?

Which of these statements about statistical power is not true?

The Spine of Statistics

The Phoenix of Statistics

The Ibm Spss Statistics Environment

Exploring Data With Graphs

Non-Parametric Models

Correlation

Regression

Comparing

Moderation, Mediation and Multicategory Predictors

Comparing Several Means

Analysis of Covariance

Factorial Anova

Repeated-Measures Designs

Mixed Design Anova

Multiple Analysis of Variance Manova

Exploratory Factor Analysis

Categorical Data

Logistic Regression

Multilevel Linear Models

Filters