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STAT Q4: Formative Assessment #8

Quiz by JONALD ROSARIO

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10 questions
Show answers
  • Q1
    In hypothesis testing, what is the term used to describe the set of all values for which we will reject the null hypothesis?
    Confidence interval
    Acceptance region
    Rejection region
    Critical value
    30s
  • Q2
    What is the purpose of the rejection region in hypothesis testing?
    To accept the null hypothesis
    To determine when to reject the null hypothesis
    To establish the sample size
    To calculate the p-value
    30s
  • Q3
    If the test statistic falls into the rejection region, what decision is made regarding the null hypothesis?
    It is rejected
    A new test is needed
    It remains untested
    It is accepted
    30s
  • Q4
    In the context of hypothesis testing, what determines the size of the rejection region?
    The significance level (\u003cmath\u003e\alpha\u003c/math\u003e)
    The sample size
    The p-value
    The test statistic
    30s
  • Q5
    Which type of error occurs if a true null hypothesis is incorrectly rejected within the rejection region?
    Sampling error
    Type I error
    Non-sampling error
    Type II error
    30s
  • Q6
    What is the rejection region in hypothesis testing based on?
    The alternative hypothesis
    The sample mean
    The critical value(s)
    The null hypothesis
    30s
  • Q7
    How does increasing the significance level affect the size of the rejection region in hypothesis testing?
    Increasing the significance level decreases the size of the rejection region
    Increasing the significance level increases the size of the rejection region
    The larger the sample size, the smaller the rejection region
    There is no impact on the size of the rejection region
    30s
  • Q8
    What is the rejection region in hypothesis testing used to determine?
    The power of the test
    The effect size of the alternative hypothesis
    Whether to reject the null hypothesis
    The confidence interval of the sample mean
    30s
  • Q9
    Which statement best describes how the rejection region is related to the p-value in hypothesis testing?
    The rejection region is always twice the size of the p-value.
    The p-value determines the shape of the rejection region.
    P-values and rejection regions are unrelated.
    If the p-value is less than the significance level, the test statistic falls in the rejection region.
    30s
  • Q10
    Which type of error occurs if a false null hypothesis is incorrectly accepted, falling outside the rejection region?
    Sampling error
    Type II error
    Type I error
    Non-sampling error
    30s

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