Question
In: Statistics and Probability
what role does significant value and significant level play in accepting or rejecting the null hypothesis?
what role does significant value and significant level play in accepting or rejecting the null hypothesis?
Solutions
Expert Solution
A hypothesis test evaluates two mutually exclusive statements about a population to determine which statement is best supported by the sample data. A test result is statistically significant when the sample statistic is unusual enough relative to the null hypothesis that we can reject the null hypothesis for the entire population.
The common alpha values of 0.05 and 0.01 are simply based on tradition. For a significance level of 0.05, expect to obtain sample means in the critical region 5% of the time when the null hypothesis is true.
Using these tools to decide when to reject the null hypothesis increases your chance of making the correct decision.
orchestra answered 2 years agoRelated Solutions
A Type 1 error is defined as: Rejecting a False Null Hypothesis Rejecting a True Null...
A Type 1 error is defined as:
Rejecting a False Null Hypothesis
Rejecting a True Null Hypothesis
Failing to Reject a False Null Hypothesis
Failing to Reject a True Null Hypothesis
b.) The probability for which a Type 1 error may
occur in a hypothesis test is referred to as:
Z-value
Test Statistic
Critical Value
Level of Significance
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he question was; what is the probability of rejecting the null hypothesis? Using the equation of...
he question was; what is the probability of rejecting the null
hypothesis? Using the equation of the central limit theorem and the
concepts of the normal distribution we made the following
computation.
Therefore, the probability of rejection of the null hypothesis,
as well as the likelihood of rejection and wrongly rejection is
5.74%.
Questions:
1. If you change the sample size to 36 samples, the probability
of rejecting the null hypothesis and committing type I error is
higher?
True
False...
What role does a hypothesis play in the scientific method?
What role does a hypothesis play in the scientific
method?
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Rejecting and Failing to Reject the Null Hypothesis. What is the
difference between failing to reject the null hypothesis and having
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Explain how the ideas of hypothesis testing and rejecting the null hypothesis can be related to...
Explain how the ideas of hypothesis testing and rejecting the
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Rejecting the null hypothesis that the population slope is equal
to zero or no relationship and concluding that the relationship
between x and y is significant does not enable one to conclude that
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why.
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Is this a true statement why or why not?
Rejecting the null hypothesis that the population slope is equal
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significant relationship between x and y. That being said, this
information simply provides us with the measure of the strength of
the relationship between the two variables. It informs us of how
the variables are correlated, if they are...
Rejecting the null hypothesis that the population slope is equal to zero or no relationship and...
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to zero or no relationship and concluding that the relationship
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a cause-and-effect relationship is present between x and y. Explain
why?
here is my Null Hypothesis and Alternative Hypothesis: Null Hypothesis: There is no significant difference in...
here is my Null Hypothesis and Alternative Hypothesis:
Null Hypothesis: There is no significant difference in the
housing expenses between married and unmarried households.
Alternative Hypothesis: There is a significant difference in the
housing expenses between married and unmarried households.
what are the type I and type II errors?
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