Lab 5: Inferential
Overall, Barry's prices are not the same as Mary's prices.
Based on a two-tailed statistical test to infer about the population, what is your conclusion? Overall, Barry's prices are similar to Mary's prices Overall, Barry's prices are not the same as Mary's prices. Overall, Mary's prices are significantly higher than Barry's prices Nothing can be inferred as the sample size is really small
Not Science and music Social science and special education?
Based on the connecting letter report, salaries of which college majors are significantly different? Language and music Social science and music Social science and special education Science and music
You reject the null hypothesis
Based on the results obtained from the ANOVA analysis of Salary data across majors, You reject the alternative hypothesis Based on the results obtained from the ANOVA analysis of Salary data across majors, You reject the alternative hypothesis You reject the null hypothesis You accept the null hypothesis You could not reject the null hypothesis
Not $133 to $114
Interquartile range in Mary's price quote is from: $125 to $105 $133 to $114 $114 to $105 $133 to $97
Barry's average price is higher than Mary's average price
Refer data: pricequote.jmp Using descriptive statistics, what can you conclude? Barry's average price is higher than Mary's average price Barry's average price is lower than Mary's average price Mary's pricing is more reasonable than that of Barry. Variation in Mary's price is higher than Barry's price
Not Average salaries of all college majors are very different
Refer data:SalaryANOVA.jmp. What is the null hypothesis of the ANOVA analysis of Salary data across majors, Average salaries of all college majors are sligtly different Average salaries of all college majors are the same Average salaries of all college majors are very different None of the selection is correct
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Support your answer for Q9 by providing an appropriate screenshot.
Less than 0.05
The conclusion inferred in Q4 is supported by t-test where the obtained p-value is. Less than 0.986 Less than 0.05 Equal to 2.52 More than 0.0284
Not Overall, Barry's prices are more than Mary's prices
To develop a two-tailed statistical test to find the answer to Q4, what is the null hypothesis? Overall, Barry's prices are at least $9 higher than Mary's prices Overall, Barry's prices are more than Mary's prices Overall, Barry's prices are less than Mary's prices Overall, Barry's prices are the same as Mary's prices.
Not Mary's price has larger spread in the population
Use a box plot to compare overall all difference in price quoted by Barry and Mary. What is your conclusion? Mary's price has larger spread in the population Barry's price has larger spread in the population Barry's price has a larger spread in the sample Mary's price has a larger spread in the sample
