Stats multiple choice
Show transcribed image text What will increase the width of a confidence interval Decrease confidence level. Increase confidence level. Increase number in sample. Decrease variance. In a hypothesis test, if the computed P-value is less than 0.001, there is very strong evidence to Fail to reject the null hypothesis. Reject the null hypothesis. Retest with a different sample. Identify the most appropriate test to use for the following situation: In an experiment on relaxation techniques, subject's brain signals were measured before and after the relaxation exercises. We wish to determine if the relaxation exercise slowed the brain waves. One sample t test. Two sample t test. Two sample p test. Matched pairs. Identify the type of sampling: A sociologist wants to know the opinions of employed adult women about government funding for day care. The sociologist selects a state at random, then chooses a city at random from that state. Within that city, she obtains a list of the 520 members of a local business and professional women's club and selects 50 of these women at random to question. Voluntary Response Sampling SRS Multistage Sample Stratified Sample Convenience Sampling Block Design
What will increase the width of a confidence interval Decrease confidence level. Increase confidence level. Increase number in sample. Decrease variance. In a hypothesis test, if the computed P-value is less than 0.001, there is very strong evidence to Fail to reject the null hypothesis. Reject the null hypothesis. Retest with a different sample. Identify the most appropriate test to use for the following situation: In an experiment on relaxation techniques, subject's brain signals were measured before and after the relaxation exercises. We wish to determine if the relaxation exercise slowed the brain waves. One sample t test. Two sample t test. Two sample p test. Matched pairs. Identify the type of sampling: A sociologist wants to know the opinions of employed adult women about government funding for day care. The sociologist selects a state at random, then chooses a city at random from that state. Within that city, she obtains a list of the 520 members of a local business and professional women's club and selects 50 of these women at random to question. Voluntary Response Sampling SRS Multistage Sample Stratified Sample Convenience Sampling Block Design
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