I ____ ( like ) to take tea daily tense
Added by Raquel R.
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Subject: I Verb: like Object: to take tea daily Show more…
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Is drinking tea good for your health? Researchers in China studied a sample of 100,902 adults and classified them as habitual tea drinkers (3 or more cups per week) and never/non-habitual tea drinkers (less than 3 cups per week). These subjects were followed for several years, and the number of subjects who had strokes was recorded. Of the 31,885 habitual tea drinkers, 854 had strokes. Of the 69,017 subjects who were never/non-habitual tea drinkers, 2949 had strokes. Let group 1 be the group who were habitual tea drinkers and group 2 be the group who were never/non-habitual tea drinkers. a. Use the 5% significance level to state the contextual conclusion if there is a significant difference in the proportion of subjects who were habitual tea drinkers who had strokes. It is given that the 95% confidence interval is 0.0183 to 0.0345. Does the interval support the claim that tea drinking is good for your health?
Adi S.
Drinking tea appears to offer a strong boost to the immune system. In a study, it was observed that the production of interferon gamma, a molecule that fights bacteria, viruses, and tumors, appears to be enhanced in tea drinkers. In the study, eleven healthy non-tea-drinking individuals were asked to drink five or six cups of tea a day, while ten healthy non-tea- and non-coffee-drinkers were asked to drink the same amount of coffee, which has caffeine but not the L-theanine that is in tea. The groups were randomly assigned. After two weeks, blood samples were exposed to an antigen, and the production of interferon gamma was measured. The results are shown in the following data. The question of interest is whether the data provide evidence that production is enhanced (mean is more) in tea drinkers than coffee drinkers. Both populations are not normally distributed, but they both have the same shape. Use an appropriate test with a 10% significance level. Tea: 5 11 13 18 20 47 48 52 55 56 Coffee: 4 4 3 11 15 16 21 21 38 52
A survey was conducted on 1200 tea fans to determine daily tea consumption in order to confirm previous studies. Previous studies have indicated that 80% of Turkish people drink tea. The results of previous studies (left) and the inquiry (right) are below. At α=0.05, is there enough evidence to conclude that the distributions are the same? Response % of Tea Drinkers 2 glasses per day 15% 1 glass per day 13% 3 glasses per day 27% 5+ glasses per day 45% Response Frequency 2 glasses per day 206 1 glass per day 193 3 glasses per day 262 5+ glasses per day 539
Madhur L.
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