MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER On the Navajo Reservation, a random sample of 218 permanent dwellings in the Fort Defiance region showed that 64 were traditional Navajo hogans. In the Indian Wells region, a random sample of 155 permanent dwellings showed that 24 were traditional hogans. Let p, be the population proportion of all traditional hogans in the Fort Defiance region, and let p, be the population proportion of all traditional hogans in the Indian Wells region. n USE SALT (a) Find a 95% confidence interval for p.= p.. (Use 3 decimal places. ) lower limit upper limit (b) Examine the confidence interval and comment on its meaning. Does it include numbers that are all positive? all