TABLE 11-7
A student team in a business statistics course designed an experiment to investigate whether the brand of bubblegum used affected the size of bubbles they could blow. To reduce the person-to-person variability, the students decided to use a randomized block design using themselves as blocks. Four brands of bubblegum were tested. A student chewed two pieces of a brand of gum and then blew a bubble, attempting to make it as big as possible. Another student measured the diameter of the bubble at its biggest point. The following table gives the diameters of the bubbles (in inches) for the 16 observations.

-Referring to Table 11-7, the null hypothesis for the F test for the block effects should be rejected at a 0.05 level of significance.

Question

TABLE 11-7
A student team in a business statistics course designed an experiment to investigate whether the brand of bubblegum used affected the size of bubbles they could blow. To reduce the person-to-person variability, the students decided to use a randomized block design using themselves as blocks. Four brands of bubblegum were tested. A student chewed two pieces of a brand of gum and then blew a bubble, attempting to make it as big as possible. Another student measured the diameter of the bubble at its biggest point. The following table gives the diameters of the bubbles (in inches) for the 16 observations.
 
-Referring to Table 11-7, the null hypothesis for the F test for the block effects should be rejected at a 0.05 level of significance.

Quizplus · Accepted Answer

The decision to reject the null hypothesis depends on the calculated F-value and the critical F-value at a 0.05 level of significance, which are not provided in the statement.

TABLE 11-7 a Student Team in a Business Statistics Course Designed an Designed