Lipstick Dilemma, Advanced Statistics

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For a career woman, wearing lipstick has become an integral part of her daily life. It is not unusual for a woman to look for a lipstick that will stay on her lips and not smudge off on to cups or her teeth. Not only that, a lipstick should be able to radiate a sense of feminism. The world of entertainment has always been curious if the ‘durability’ is at least as good as the ‘feel’ that a lipstick could offer.
In order to investigate this matter, the ‘Worldly Adornment’ magazine research team trialed 15 lipsticks using 20 women who are regular lipstick wearers. Each day for a period of 10 days, the 20 trial lists applied a different lipstick at l0 a.m. and then assessed it every two hours for the

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