Question

eBook A seven-year medical research study reported that women whose mothers took the drug DES during pregnancy were twice as likely to develop tissue abnormalities that might lead to cancer as were women whose mothers did not take the drug a. This study compared two populations. What were the populations? - Select your answer b. Do you suppose the data were obtalned In a survey or In an experiment? Select your answer * c.For the population of women whose mothers took the drug DES during pregnancy, a sample of 3980 women showed that 63 developed tissue abnormalities that might lead to cancer. Provide a descriptive statistic (to 1 declmal) that could be used to estimate the number of women out of 1000 in this population who have tissue abnormalities. out of 1,000 women developed tissue abnormalities d. For the population of women whose mothers did not take the drug DES during pregnancy, what is the estimate (to 1 decimal) of the number of women out of 1000 who would be expected to have tissue abnormalities? (Hint: remember that women whose mothers took the drug were twice as likely to develop tissue abnormalities.) out of 1,000 women developed tissue abnormalities e. True or false: Medical studles often use a relatively large sample (In thls case, 3980) because disease occurrences can be rare and difficult to observe when only Isolated populatlons are consldered Select your answer- Check My Work Icon Koy

Answer 1

Solution

a. This study considered 2 populations - women whose mothers took the drug DES during their pregnancy and women whose mothers did not take the drug DES during their pregnancy

b.The data were obtained in a survey - It is called a survey since the sample size is huge and the data gathered is descriptive in nature.On the other hand,in the case of experiment,the sample size obtained is very small and the data is obtained from them by performing hypothetical analysis on them.

c.Out of 3980 women whose mothers took the drug 63 women developed the abnormalities i.e., descriptive statistic (probability / possibility)  is 0.158 ~0.1 / 0.2

158 out of 1000 women developed abnormalities

d.Given that women in condition c were having double the chances of getting the abnormalities which implies that for women whose mothers did not take drug,the descriptive statistic f developing abnormality is ~ 0.158 /2 i.e., ~ 0.079

So approximately,79 out of 1000 women developed abnormalities

e.True

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