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Use the two-proportions z-test to perform the required hypothesis test. Assume that independent simple randomsamples have been selected from the two populations. Use the critical-value approach.
-In a random sample of 500 people aged 20-24, 22% were smokers. In a random sample of 450 people aged 25-29, 14% were smokers. Do the data provide sufficient evidence to conclude that the proportion of smokers in the 20-24 age group is different from the proportion of smokers in the 25-29 age group? Use a significance level of 0.01.
Mucus
A thick, slippery substance produced by mucous membranes and glands for protection and lubrication in various body parts, such as the nose, throat, and lungs.
Pulmonary Fibrosis
A lung disease that occurs when lung tissue becomes damaged and scarred, making it difficult for lungs to work properly.
Pleurisy
An inflammation of the pleura, the two layers of membranes surrounding the lungs and lining the chest cavity.
Alveoli
Tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place, crucial for breathing.
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