9. A consumer group is investigating two brands of popcorn, R and S. The population proportion of kernels that will pop for Brand R is 0.90. The population proportion of kernels that will pop for Brand S is 0.85. Two independent random samples were taken from the population. The following table shows the sample statistics. _ Number of Kernels in Samples Proportion from Sample that Popped The consumer group claims that for all samples of size 100 kernels from Brand R and 200 kernels from Brand S, the mean of all possible differences in sample proportions (Brand R minus Brand S) is 0.03. Is the consumer group's claim correct? (.9 Yes. The mean is 0.92 0.89 = 0.03. . No. The mean is w = 0.905. G) No. The mean is w = 0.015. (9 No. The mean is w = 0.875. G) No. The mean is 0.90 0.35 = 0.05