he Situation Crest is among the leading toothpaste brands. Crest$$s dream is to lead the way in the passionate pursuit of perfect oral health so that everyone can have a healthy, beautiful smile for life. Crest toothpaste is reviewing plans for its annual survey of toothpaste purchasers. With each case that follows, calculate the sample size pertaining to the key variable under consideration. Where information is missing, provide reasonable assumptions. Market share of Crest toothpaste last year $23\%$ share $4\%95\%$ Percentage of people who brush their teeth $2$x per day Unknown $5\%99\%$ Likelihood to switch toothpaste brands the next time they purchase toothpaste $($scale of $1-7$ where $1=$ extremely likely and $7=$ not at all likely$)$ Unknown $(1)/(2)$ a point on the scale $95\%$ Follow Up Questions $1.$ Which of the following is the correct sample size for a study to measure Crest$$s market share? a$.425$ b$.600$ c$.737$ d$.1040$ quizlet