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Worksheetscategorizing Stat Problems
Total questions: 20
Worksheet time: 30mins
When road conditions are snowy, how much faster do people who have four wheel drive vehicles drive compared to those who have two wheel drive vehicles? 45 four wheel drive vehicles and 40 two wheel drive vehicles were clocked.
Confidence Interval for a Population Mean
Confidence Interval for a Proportion
Confidence Interval for the Diff. Between 2 Means (Independent Samples)
Confidence Interval for Paired Data (Dependent Samples)
A police chief is interested in estimating the average amount of money that is stolen during a bank robbery. She investigates 42 recent bank robberies.
Confidence Interval for a Population Mean
Confidence Interval for a Proportion
Confidence Interval for the Diff. Between 2 Means (Independent Samples)
Confidence Interval for Paired Data (Dependent Samples)
Confidence Interval for the Difference Between 2 Proportions
A child psychologist wants to estimate the mean difference between the number of words children can recall when they hear them and the number of words they can recall when then see them on a written page. Fifty-two children were each read to and asked how many words they recalled and then they were asked to look at a book and asked how many words they recalled.
Confidence Interval for a Population Mean
Confidence Interval for a Proportion
Confidence Interval for the Diff. Between 2 Means (Independent Samples)
Confidence Interval for Paired Data (Dependent Samples)
Confidence Interval for the Difference Between 2 Proportions
What is the president's approval rating? 1500 US citizens were asked whether they approved of the job that the president was doing.
Confidence Interval for a Population Mean
Confidence Interval for a Proportion
Confidence Interval for the Diff. Between 2 Means (Independent Samples)
Confidence Interval for Paired Data (Dependent Samples)
Confidence Interval for the Difference Between 2 Proportions
Forty-five LTCC students were asked how much money they spent on textbooks and how much money they spent on tuition. Estimate the mean difference between the average amount of money students spend on books and how much they spend on tuition.
Confidence Interval for a Population Mean
Confidence Interval for a Proportion
Confidence Interval for the Diff. Between 2 Means (Independent Samples)
Confidence Interval for Paired Data (Dependent Samples)
Confidence Interval for the Difference Between 2 Proportions
Are African Americans taller than Caucasians? 10,000 African Americans and 10,000 Caucasians were measured.
Hypothesis Test for a Population Mean
Hypothesis Test for a Population Proportion
Hyp. Test for the Difference Between 2 Means (Independent Samples)
Hyp. Test for Paired Data (Dependent Samples)
Hyp. Test for the Difference Between 2 Proportions
Does meditation lower stress? The average stress level is 42. 87 people who meditated averaged 38. What can be concluded?
Hypothesis Test for a Population Mean
Hypothesis Test for a Population Proportion
Hyp. Test for the Difference Between 2 Means (Independent Samples)
Hyp. Test for Paired Data (Dependent Samples)
Hyp. Test for the Difference Between 2 Proportions
Are tourists on the North Shore more likely to rent a boat than tourists on the South Shore? 50 North Shore tourists and 50 South Shore tourists were surveyed.
Hypothesis Test for a Population Mean
Hypothesis Test for a Population Proportion
Hyp. Test for the Difference Between 2 Means (Independent Samples)
Hyp. Test for Paired Data (Dependent Samples)
Hyp. Test for the Difference Between 2 Proportions
Is a man who walks into a car dealership more likely to purchase an automobile than a woman? 70 men and 60 women were observed.
Hypothesis Test for a Population Mean
Hypothesis Test for a Population Proportion
Hyp. Test for the Difference Between 2 Means (Independent Samples)
Hyp. Test for Paired Data (Dependent Samples)
Hyp. Test for the Difference Between 2 Proportions
A study was done to see how much gas Americans consume. 600 Americans were asked how far they lived from their work and how many gallons of gas they used each week. Find a confidence interval for the mean amount of gas that is used by Americans who live 15 miles from work.
Prediction for a Single Value of y for a Fixed x
Chi-Square Goodness of Fit Test
Chi-Square Test for Independence
Chi-Square Test for Homogeneity
A biologist measured the blood sugar level of 500 mice that were fed various amounts of sugar. Estimate the mean blood sugar level of mice that are fed 3 grams of sugar.
Prediction for a Single Value of y for a Fixed x
Chi-Square Goodness of Fit Test
Chi-Square Test for Independence
Chi-Square Test for Homogeneity
Is the type of television show that a person chooses to watch related to the brand of deodorant that a person uses? 1500 people were surveyed.
Prediction for a Single Value of y for a Fixed x
Chi-Square Goodness of Fit Test
Chi-Square Test for Independence
Chi-Square Test for Homogeneity
Is the distribution of bird species in the Tahoe area the same as in the Yosemite area? 720 Tahoe area birds and 814 Yosemite area birds were observed.
Prediction for a Single Value of y for a Fixed x
Chi-Square Goodness of Fit Test
Chi-Square Test for Independence
Chi-Square Test for Homogeneity
Does the political affiliation of congress reflect the known political affiliation of the American Public?
Prediction for a Single Value of y for a Fixed x
Chi-Square Goodness of Fit Test
Chi-Square Test for Independence
Chi-Square Test for Homogeneity
Seventy-four South Tahoe residents were asked how many cups of coffee they drank each week and how many glasses of water they drank each week. Estimate the mean difference between the average number of cups of coffee South Tahoe residents drink and the average number of glasses of water they drink.
Confidence Interval for the Diff. Between 2 Means (Independent Samples)
Confidence Interval for Paired Data (Dependent Samples)
Hypothesis Test for a Population Proportion
Hyp. Test for the Difference Between 2 Means (Independent Samples)
When road conditions are snowy, how much faster do people who have four wheel drive vehicles drive compared to those who have two wheel drive vehicles? 45 four wheel drive vehicles and 40 two wheel drive vehicles were clocked.
Confidence Interval for the Diff. Between 2 Means (Independent Samples)
Confidence Interval for Paired Data (Dependent Samples)
Hypothesis Test for a Population Proportion
Hyp. Test for the Difference Between 2 Means (Independent Samples)
How much better has the NASDAQ done than the Dow Jones industrial this year? The daily point gains and losses have been charted since January 2.
Confidence Interval for the Diff. Between 2 Means (Independent Samples)
Confidence Interval for Paired Data (Dependent Samples)
Hypothesis Test for a Population Proportion
Hyp. Test for the Difference Between 2 Means (Independent Samples)
How much more time do men spend listening to music compared to women? 52 men and 52 women were surveyed.
Confidence Interval for the Diff. Between 2 Means (Independent Samples)
Confidence Interval for Paired Data (Dependent Samples)
Hypothesis Test for a Population Proportion
Hyp. Test for the Difference Between 2 Means (Independent Samples)
Are people who drink coffee more stressed than those who do not drink coffee? 300 coffee drinkers and 200 non-coffee drinkers were tested for stress level (on a 100 point scale).
Confidence Interval for the Diff. Between 2 Means (Independent Samples)
Confidence Interval for Paired Data (Dependent Samples)
Hypothesis Test for a Population Proportion
Hyp. Test for the Difference Between 2 Means (Independent Samples)
Do more than 99.9% of women who are given the vaccine stay free of ovarian cancer? 30,000 women were observed.
Confidence Interval for the Diff. Between 2 Means (Independent Samples)
Confidence Interval for Paired Data (Dependent Samples)
Hypothesis Test for a Population Proportion
Hyp. Test for the Difference Between 2 Means (Independent Samples)
