Answer:
D) 0.78, 0.029
Step-by-step explanation:
Central Limit Theorem:
For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean and standard deviation
About 78% of the US, population claims that they visit the dentist at least once a year.
This means that
Random sample of 200 people:
This means that
Mean and standard deviation of the sampling distribution:
By the Central Limit Theorem
Mean
Standard deviation
So the correct answer is given by option D.