How often do we trust a brand recommended online? Let p represent the proportion of the time a consumer trusts a brand that showed up on their social media feed. USE SALT (a) If you have no preliminary estimate for p, how many participants should you include in a random sample to be 80% sure that the point estimate p will be within a distance of 0.09 from p? (Round your answer up to the nearest whole number.) Xparticipants (b) Suppose that a report stated that 73% of consumers trust a brand recommended on their social media feed. Using this estimate for p, how many participants should you include in a random sample to be 80% sure that the point estimate will be within a distance of 0.09 from p? (Round your answer up to the nearest whole number.) Need Help? X participants Read It Submit Answer