Hypothesis Testing One population

What is a hypothesis in hypothesis testing?

• A tentative explanation for an observed phenomenon

• A proven fact

• An untested assumption

• A guess

What is the null hypothesis in hypothesis testing?

• The hypothesis that is believed to be true

• The hypothesis that is being tested

• The hypothesis that is rejected

• The hypothesis that is accepted

What is the alternative hypothesis in hypothesis testing?

• The hypothesis that is believed to be true

• The hypothesis that is being tested

• The hypothesis that is rejected

• The hypothesis that is accepted

What is the significance level in hypothesis testing?

• The probability of rejecting the null hypothesis when it is true

• The probability of accepting the null hypothesis when it is false

• The probability of accepting the alternative hypothesis when it is true

• The probability of rejecting the alternative hypothesis when it is false

What is a Type I error in hypothesis testing?

• Accepting the null hypothesis when it is false

• Rejecting the alternative hypothesis when it is true

• Rejecting the null hypothesis when it is true

• Accepting the alternative hypothesis when it is false

What is a Type II error in hypothesis testing?

• Rejecting the null hypothesis when it is true

• Accepting the null hypothesis when it is false

• Rejecting the alternative hypothesis when it is true

• Accepting the alternative hypothesis when it is false

What is the p-value in hypothesis testing?

• The probability of rejecting the null hypothesis when it is true

• The probability of accepting the null hypothesis when it is false

• The probability of obtaining a test statistic as extreme or more extreme than the observed value, assuming the null hypothesis is true

• The probability of obtaining a test statistic as extreme or more extreme than the observed value, assuming the alternative hypothesis is true

What is the critical value in hypothesis testing?

• The value of the test statistic that separates the rejection region from the acceptance region

• The value of the test statistic that separates the alternative hypothesis from the null hypothesis

• The value of the test statistic that separates the upper tail of the distribution from the lower tail of the distribution

• The value of the test statistic that separates the significance level from the p-value

What is a one-tailed test in hypothesis testing?

• A test in which the null hypothesis is not equal to the alternative hypothesis

• A test in which the null hypothesis is equal to the alternative hypothesis

• A test in which the direction of the difference between the sample mean and the population mean is specified

• A test in which the direction of the difference between the sample mean and the population mean is not specified

What is the power of a statistical test?

• The probability of rejecting the alternative hypothesis when it is false

• The probability of rejecting the null hypothesis when it is false

• The probability of accepting the null hypothesis when it is true

• The probability of accepting the alternative hypothesis when it is true