The power of the test represents probability of ______________.

correctly rejecting the null, when it is indeed false

Type I error occurs when the null ______________.

is actually true, but the test incorrectly rejects

If we fail to reject the null hypothesis, ____________.

We have failed to find evidence to support the alternative

If a test fails to reject the null hypothesis then _________________.

the test has failed to provide significant evidence for Ha

The alternative hypothesis______________.

Is based on new information provided by sample data

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spring 2015 Hypothesis Testing

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Hypothesis testing, type error, power,

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Questions 13

Answers

1
Hypothesis testing can result in ______ different outcomes
3
1
4
2
2
The power of the test represents probability of ______________.
correctly failing to reject the null, when it is true
correctly rejecting the null, when it is indeed false
incorrectly rejecting the null, when it is actually true
incorrectly failing to reject the null, when it is false
3
The statement of "no change from the traditional value," "no effect," "no relationship."
significance level
P-Value
alternative hypothesis
null hypothesis
4
Hypothesis testing is a technique used to draw statistically valid conclusions about
Sample Statistics
Random Errors
Population Parameters
Individuals
5
Type I error occurs when the null ______________.
All of the above
is actually true, but the test incorrectly rejects
Is actually false, but the test incorrectly fails to reject
is actually true, and the test correctly fails to reject
6
If we fail to reject the null hypothesis, ____________.
We have failed to find evidence to support the alternative
We have found evidence to support the alternative
all of the above
The null hypothesis is proved to be true
7
If we reject the null hypothesis then _____________.
the p-value must be smaller than the alpha level
all of the above
we have found significant evidence against the null
we have found significant evidence for the alternative
8
Hypothesis Testing always assumes that the ______________.
Probability of the alternative being true is less than 50%
Probability of the null being true is less than 50%
Alternative hypothesis is true
Null hypothesis is true
9
The probability of making Type I error is denoted ______.
1-β
β
α
σ
10
HypothesisTesting involves drawing inferences about 2 contrasting _____ relating to a parameter
Assumptions
Propositions
Data Sets
Theorems
11
Which of the following will increase the power of a test?
Increasing alpha
decreasing the significance level
decreasing the sample size
decreasing the effect size
12
If a test fails to reject the null hypothesis then _________________.
there is significant evidence against the null hypothesis
the test statistic is statistically significant
the p-value of the test must be smaller than α
the test has failed to provide significant evidence for Ha
13
The alternative hypothesis______________.
Is not deemed to be an important part of inferential stats
is accepted as correct in the absence of contradictory data
Is based on new information from the population data
Is based on new information provided by sample data

spring 2015 Hypothesis Testing Flashcards | StudBud