Question

FULL SCREEN PRINTER VERSION RACK NEXT Chapter 3, Section 1, Exercise 024 Topical Painkiller Ointment The use of topical painkiller ointment or gel rather than pills for pain relief was approved just within the last few years in the US for prescription use only. Insurance records show that the average copayment for a month's supply of topical painkiller ointment for regular users is $30. A sample of size 75 regular users found a sample mean copayment of $27.90 Tarkan, L., "Topical Gel Catches up with Pills for Relief," The New York Times, September 6, 2010, (a) Identify each of 30 and 27.90 as a parameter or a statistic 30 is a 27.90 is a SHOW SOLUTION EV

Answer 1

a) 30 is a pa arameter statistics, 4 27.90 is a le) The appropriate motion for 30 is M e) The 27.9 on n n x d) The shape of the plot will lee Normal (Bell shaped) and the center will lee at 30, 1000 dots in the e) There will be dotphoto AD 1000 we are bamples ploting 75 [a single dot for each wample ] of size