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According to U.S census estimates there were about 20 million children between 8 and 12 years...

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Advance Math

According to U.S census estimates there were about 20 millionchildren between 8 and 12 years old( referred to as tweens) in theunited states in 2009. A recent survey of 1, 223 8- to 12 -year-oldchildren ( S. Jayson , it's cooler than ever to be a tween.''USAtoday February 4, 2009 pp, 1A, 2A) reported the following results,Suppose that the survey was based on 600 boys and 623 girls.

What tween did in the past week Boys girls

Played a game on a video 498 243

Game system

Read a book for fun 276 324

Gave product advice to parents 186 181

Shopped a mall 144 262

For each type of activity, determine whether there is adifference between boys and girls at the 0.05 level ofsignificance.

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