The Journal of Travel conducted research by taking two large groups (viewed as populations) to determine whether there are a) The mean cost of a one-day trip for Group A is $ |and for Group B $. differences in the characteristics of the two groups of holiday travellers [Group A] travellers that are less than 50 years old. The standard deviation of the cost of a one day trip for Group A is (rounded to nearest cent) $| |and for Group A (Group B] travellers that are 50 or more years old. One item of interest was the amount spent for a one-day trip. The results are shown below. b) For which set of travelers would the median be a better measure of central tendency than the mean? Cost of one-day trip Group A: Under 50 years old (n=480) Group B: Over 50 years old (n=325) SO up to 50 6% 1% O A. All travellers 50 up to 100 13 5 9 O B. Under 50 Group A 100 up to 200 21 200 up to 300 29 13 O C. Over 50 Group B 300 up to 400 11 20 O D. Neither group 400 up to 500 12 17 500 up to 750 2 14 c) For Group A, 384 of those surveyed would have spent less than 750 up to 1000 10 O A. 5300 1000 up to 2000 O B. $500 2000 up to 3000 O C. $400 (Base your answer on results obtained by using your calculator.) O D. $750 d) The coefficient of variation for Group A is ] and for Group B is ] Group B is relatively more variable than Group A O True O False