Question 21 In order to determine whether you will reject the null hypothesis, the test statistic value must be compared against which of the following? Group of answer choices A.p-value B.obtained value C.critical value D.significance level
Question 21 In order to determine whether you will reject the null hypothesis, the test statistic value must be compared against which of the following? Group of answer choices A.p-value B.obtained value C.critical value D.significance level
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question 21
In order to determine whether you will reject the null hypothesis, the test statistic value must be compared against which of the following?
Group of answer choices
A.p-value
B.obtained value
C.critical value
D.significance level
Flag question: Question 22
When your findings yield a 1 in 20 chance that differences were not due to the hypothesized reason, what is the corresponding p value?
Group of answer choices
A.0.50
B.0.05
C.0.10
D.0.20
Flag question: Question 23
When a researcher sets the decision rule p value at 0.05, what is the probability of making a Type I error?
Group of answer choices
A.20%
B.10%
C.1%
D.5%
Flag question: Question 24
Compared with a 95% confidence interval, a 99% confidence interval would result in which of the following?
Group of answer choices
A.a wider range of values in the confidence interval
B.the same range of values in the confidence interval
C.a smaller range of values in the confidence interval
D.a range that cannot be determined in the confidence interval
Flag question: Question 25
When we test differences between the mean scores of two unconnected groups, which statistical techniques should we select?
Group of answer choices
A.independent-samples t-test
B.dependent-samples t-test
C.analysis of variance
D.regression
Flag question: Question 26
Given the sample value, a confidence interval is the best estimate of the range of a population value.
Group of answer choices
A.True
B.False
Flag question: Question 27
The critical value is the value that results from the use of a statistical test.
Group of answer choices
A.True
B.False
Flag question: Question 28
It is possible to control for every possible factor when conducting a study.
Group of answer choices
A.True
B.False
Flag question: Question 29
Inferential statistics is a set of tools that are used to infer the results based on the sample to a population.
Group of answer choices
A.True
B.False
Flag question: Question 30
You have conducted a one-sample Z-test and arrived at a value of 5.7 for the z value. What is your conclusion?
Group of answer choices
A.to reject the null hypothesis
B.cannot make a determination
C.to accept the null hypothesis
D.to reject the research hypothesis
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Follow-up Question
Examine the given statement, then express the null hypothesis Ho and the alternative hypothesis H1 in the symbolic form:
(1) The mean weight of women who won a beauty pageant is equal to 120 lbs.
(2) There are more then 97% of LBCC students have computers.
(3( There are at least 50% of LBCC students have a job while studying>
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