In a study of the relationship between pet ownership and physical activity in ol

Question

In a study of the relationship between pet ownership and physical activity in older adults, 612 subjects reported that they owned a pet, while 1937 reported that they did not. Give a 98% confidence interval for the proportion of older adults in this population who are pet owners. Also, pleast round to the fourth value or further :) thank you

6, -2 points MIntrostat6 B.E.026 My Notes Ask Your Teacher In a study of the relationship between pet ownership and physical activity in older adults, 612 subjects reported that they owned a pet, while 1937 reported that they did not. Give a 98% confidence interval for the proportion of older adults in this population who are pet owners. Lower mit Upper limit A Your work in question(s) 3 will also be submitted or saved. Submit Assignment

Explanation / Answer

here, p = 612/1937 = 0.315 , q = 0.685 , n = 1937

For 98% confidence interval z value is = 2.33

CI = p +/ - z * sqrt(pq/n)

= 0.315 + / - 2.33 * sqrt(0.315 * 0.685 / 1237)

= (0.2841 , 0 .3458)

Lower limit = 0.2841

Upper limit = 0.3458

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