Question 12 (1 point) Market researchers recently studied the age of the person in a household who is primarily responsible for purchasing toothpaste. A sample of 21 respondents' ages that purchase Other brands (i.e. not Crest) is provided here and in the file: Week 2 Data.xisx on the sheet: Toothpaste Age; Variable: Other Ages Ages for Purchasers of Other Brands 28 22 44 33 55 63 45 31 60 54 53 58 52 52 66 35 25 48 59 61 52 Using technology, which of the following represents the middle 50% of ages (IQR) for the Other Brands ages? 9.87 years 12.99 years 16 years O24.5 yearsQuestion 11 (1 point) Market researchers recently studied the age of the person in a household who is primarily responsible for purchasing toothpaste. A sample of 21 respondents' ages that purchase Crest brand is provided here and in the file: Week 2 Data.xlsx on the sheet: Toothpaste Age; Variable: Crest Ages Ages for Purchasers of Crest Brand 34 35 23 44 52 46 28 48 28 34 33 52 41 32 34 49 50 45 29 59 38 Calculate the middle 50% of the ages...i.e. the interquartile range (IQR) (you may used technology). Which of the following represents the middle 50% for the Crest Brand ages? 24.5 years 12.99 years 9.87 years 16 yearsQuestion 13 (1 point) Answer the following question using the Interquartile Range (IQR) values from the previous two problems. Which of the following statements are true based on the IQR values calculated for the Crest and Other Brand age data. Select all that are true statements made by studying the IQR (spread). ()a) According to the IQR, the Other Brand purchasers are OLDER, on average than the Crest Brand purchasers. (]b) According to the IQR, the age data for the Other Brand is less spread out (has less variability) than the age data for the Crest Brand. ()c) According to the IQR, the age data for the Other Brand is more spread out (has more variability) than the age data for the Crest Brand