1 answer

In a recent poll, a random sample of adults in some country (18 years and older)...

Question:

In a recent poll, a random sample of adults in some country (18 years and older) was asked, When you see an ad emphasizing t

In a recent poll, a random sample of adults in some country (18 years and older) was asked, "When you see an ad emphasizing that a product is "Made in our country," are you more likely to buy it, less likely to buy it, or neither more nor less likely to buy it?" The results of the survey, by age group, are presented in the following contingency table. Complete parts (a) through (c). Purchase likelihood 18-34 35-44 45-54 55+ Total More likely 211 303 307 400 1221 Less likely 20 6 20 18 64 Neither more nor less likely 280 216 157 103 756 Total 511 525 484 521 2041 (a) What is the probability that a randomly selected individual is 45 to 54 years of age, given the individual is less likely to buy a product emphasized as "Made in our country"? The probably is approximately 0.313 The probability is approximately 0.313. (Round to three decimal places as needed.) 0.3125 round (b) What is the probability that a randomly selected individual is less likely to buy a product emphasized as "Made in our country," given the individual is 45 to 54 years of age? The probability is approximately (Round to three decimal places as needed.)

Answers

b) P(Less likely | 45 to 54 years of age)

= n(Less likely and 45 to 54 years of age) / n(45 to 54 years of age)

= 20/484

= 0.041

.

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