The alternate hypothesis...

is based on new information provided by a sample

You're testing that p = .84. Which represents a type 2 error?

failing to reject that p = .84 when it's not .84

The level of significance is ______________________.

the probability of rejecting H0 when it's true

If we fail to reject the null hypothesis, ____________.

we have failed to find evidence to support H1

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Hypothesis Testing Review

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Ch 8 Review

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Questions 14

Answers

1
What type of test would be most appropriate for the following situation?
1-propztest
z-test
t-test
2-propttest
2
Find the alternate hypothesis for the situation: From 2014 to 2015, the proportions of students who can drive changed
p1 > p2
p1 ≠ p2
p1 < p2
p1 = p2
3
What would be the P-value if your test statistic is z = -2.34 on a two-tailed test?
0.0192
0.9904
0.0096
1.9808
4
The alternate hypothesis...
is denoted H0
is accepted as correct in the absence of contradictory data
is based on historic information from the population data
is based on new information provided by a sample
5
You're testing that p = .84. Which represents a type 2 error?
Rejecting that p = .84 when it actually is .84
failing to reject that p = .84 when it's not .84
Rejecting that p = .84 when it is not .84
failing to reject that p = .84 when it is .84
6
The level of significance is ______________________.
the probability of making a type II error
always 0.05 or 0.01
the probability of rejecting H0 when it's true
the same as a confidence level
7
The probability of making a type I error is ____.
ρ
p-hat
β
α
8
Hypothesis testing is a technique used to draw statistically valid conclusions about ________.
individuals
population parameters
sample statistics
random errors
9
If we reject the null hypothesis then _____________.
we have found significant evidence for the alternative
the p-value is smaller than α
all of the above
we have found significant evidence against H0
10
If the hypotheses is H₀: p = .25, H₁: p > .25, what is the tail?
Right Tail
Positive Tail
Two Tail
Left Tail
11
If the p-value is 0.0372 and α = 0.05 you would...
Reject H1
Fail to reject H0
Accept H0
Reject H0
12
If we fail to reject the null hypothesis, ____________.
all of the above
we have failed to find evidence to support H1
we have found evidence to support the alternate hypothesis
the null hypothesis is proven true
13
A type I error means you ____________________.
Reject a true H0
Fail to reject a true H0
Reject a false H0
Fail to Reject a false H0
14
What would be the P-value if your test statistic is z = 1.45 on a right-tailed test?
.07353
.14706
.92647
.08

Hypothesis Testing Review Flashcards | StudBud