1. Does the bat make a difference? This was a question of interest at the regional little league monthly meeting. To test whether the more expensive bats do increase the average distance hit, ten little league batters of the same age were randomly chosen. The batters hit ten balls with the top of the line bat and after a rest; hit ten balls with the lower price bat. The data below represents the dis- tance hit in feet for the batters. At the 5% significance level, does the evidence suggest that the top of the line bat does increase the average distance hit versus the lower price bat? samites talogq adT Top of the Line Bat 69.9 59.2 58.9 58.7 63.2 62.5 66.5 70.4 65.9 55.5 Lower 59.2 61.2 52.6 54.3 58.1 62.3 56.5 62.4 53 61.8 Price Bat

Rodney wants to test the relationship between college graduation rank and annual income. If income is measured on a ratio scale, the appropriate relationship test for Rodney to use is the: a. Spearman r b. Pearson r c. independent-samples t test d. chi square test of independence

The four levels of measurement scale are Nominal, Ordinal, Interval and Ratio. What can be computed with each type (Frequency, Median, Mean, Standard Deviation, Standard error, Ratio, Coefficient of variation)?

A consumer research company wants to estimate the average cost of an airline ticket for a round trip within the continental United States. A random sample of 50 airfares was gathered giving an average price of $438. Identify the variable. A. Random sample of 50 airfares C. Consumer research company B. Airline Fare D. Quantitative E. $38