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What questions? An increase in the number of skin cancer cases has raised the awareness of the importance of wearing sunscreen for protection. Suppose a

What questions?

image text in transcribed An increase in the number of skin cancer cases has raised the awareness of the importance of wearing sunscreen for protection. Suppose a foundation surveyed 75 men and found that 33 had not applied sunscreen in the past 12 months. A random sample of 80 women found that 21 had not applied sunscreen during the past year. Complete parts a and b below. a. Using a = 0.01, can we conclude that the proportion of men who have not applied sunscreen during the past year is different than the proportion of women? What are the correct null and alternative hypotheses? O A. Ho: P1 = P2 O B. Ho: P1 > P2 Hy: P1 P2 OE. Ho: P1 P2 H1: P1 = P2 Find the test statistic. x2 = (Round to two decimal places as needed.) Identify the critical value for a = 0.01. X8.01 = (Round to two decimal places as needed.) State the conclusion. Since the test statistic is the critical value, Ho. There is to conclude that the proportion of men who do not use sunscreen differs from the proportion of women. b. Determine the p-value for the chi-square test statistic using Excel and interpret its meaning. The p-value is. (Round to three decimal places as needed.) Interpret the p-value. to conclude that the proportion of men who do not use The p-value is the probability of assuming that Ho is true. Since the p-value is 4 Ho . There is sunscreen differs from the proportion of women. ? Click to select your answer(s). MacBook Air

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