A random sample of 100 baseballs has been selected from each of two large crates of baseballs. One crate of baseballs was produced by Allen Sports Products; the other was produced by Baron Athletic Supply. Ten of the baseballs (10%) in the Allen sample and 18 of the baseballs (18%) in the Baron’s sample were determined to be too light to be used in Major League Baseball games. Use a chi square test to test the hypothesis that the proportion of baseballs that are too light is the same for both crates. Use a significance level of 5%.
Answer to relevant QuestionsFor the following cases, indicate the level of measurement—nominal, ordinal, interval, or ratio— for the data involved: Variable a. Movie ratings: G, PG, PG-13, R, X b. Commuting distances c. Floors in a building: ...Ward’s Automotive Group reported US sales of automobiles (in millions of units) for the years 2003 to 2012 as follows: Compute the range, the MAD, the variance, and the standard deviation for the data. Interpret each of ...The table shows worldwide box office revenue (in $millions) for some of film director Steven Spielberg’s biggest movies. a. Determine the mean, the median and the mode for the revenue data. b. Interpret each of these ...JetBlue Airways sponsored a survey of 834 Long Beach, California, voters to measure general community support for building new facilities at Long Beach Airport. Participants were asked, “Do you support replacing temporary ...The A & M convenience store in Rockmont, Illinois, has kept track of customer arrivals during the early morning hours of 1 a.m. to 4 a.m., collecting a sample of 300 hours of data. Below is a table showing the results of the ...
Post your question