Small Sample Case The requirements for McNemar’s test include the condition that b 1 c $ 10 so that the distribution of the test statistic can be approximated by the chisquare distribution. Refer to the example in this section and replace the table data with the values given below. McNemar’s test should not be used because the condition of b 1 c $ 10 is not satisfied with b 5 2 and c 5 6. Instead, use the binomial distribution to find the probability that among 8 equally likely outcomes, the results consist of 6 items in one category and 2 in the other category, or the results are more extreme. That is, use a probability of 0.5 to find the probability that among n 5 8 trials, the number of successes x is 6 or 7 or 8. Double that probability to find the P-value for this test. Compare the result to the P-value of 0.289 that results from using the chi-square approximation, even though the condition of b 1 c $ 10 is violated.

What do you conclude about the two treatments?