a. Is the proportion of medical doctors who are female in the US different from the proportion of medical doctors who are female in Russia?

b. What percentage of US adults believe that COVID-19 was engineered by humans?

c. Is the difference between the mean birth weight for female newborns in the US different from the mean birth weight for male newborns in the US?

d. What is the average BMI (body mass index) for adult males in the US?

3. Indicate whether each question is best assessed by using a confidence interval or a hypothesis test. For a hypothesis test, write hypotheses. For a confidence interval, write the notation for the parameter that is being estimated. a. Is the proportion of medical doctors who are female in the US different from the proportion of medical doctors who are female in Russia? b. What percentage of US adults believe that COVID-IQ was engineered by humans? c. Is the difference between the mean birth weight for female newborns in the US different from the mean birth weight for male newborns in the US? d. What is the average BMI (body mass index) for adult males in the US