More than 25 years after the death of Elvis Presley, more than 40% of Americans are still fans of “The King.” Given all of the rumors, theories, and alleged sightings, 7% of Americans think Elvis is...

More than 25 years after the death of Elvis Presley, more than 40% of Americans are still fans of “The King.” Given all of the rumors, theories, and alleged sightings, 7% of Americans think Elvis is still alive.29 A sample of visitors to Graceland was obtained and asked if they believe Elvis is still alive. There responses were classified as alive (L) or dead (D). Is there any evidence to suggest that the order of observations is not random? Use the runs test with the normal approximation and a  =0.05.

Perhaps due to the increase in use of debit and credit cards, only 20% of Americans always carry cash.30 A sample of shoppers at the Quaker Bridge Mall in Lawrence, New Jersey was obtained and asked if they were carrying cash. The sequence of responses is given in the following table [cash (C) and no cash (N)].