MATH-UA 21 According to a reputable source, 74.5% of American

1?According to a reputable source, 74.5% of American households pay for cable TV. You believe that the market penetration of cable TV is higher in your city. You survey 760 households in your city and find that 608 of them currently pay for cable TV. Test if the proportion who pay for cable is higher in your city using ? = 0.0252?A researcher studied whether pregnant women who consumed more than 800 mg of caffeine per day had babies with a lower birth weight (in lbs). The results are in the table below:Caffeinated women’s babies weights7.56.75.26.87.47.75.66.9Non-caffeinated women’s babies weights7.87.68.17.57.17.27.9Test to determine if the use of caffeine lowered birth weights using ? = 0.05

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