Question

a medical researcher says that less than 80% of adults in a certain country think that healthy children should be required to be vaccinated. in a random sample of 600 adults in that country, 78% think that healthy children should be required to be vaccinated. at $alpha = 0.01$, is there enough evidence to support the researchers claim? complete parts (a) through (d) below. (a) identify the claim and state $h_0$ and $h_a$. identify the claim in this scenario. select the correct choice below and fill in the answer box to complete your choice. (type an integer or a decimal. do not round ) a. the percentage of adults in the country who think that healthy children should be required to be vaccinated is not % b. more than % of adults in the country think that healthy children should be required to be vaccinated. c. less than % of adults in the country think that healthy children should be required to be vaccinated d. % of adults in the country think that healthy children should be required to be vaccinated

Explanation:

The medical researcher's statement is "less than 80% of adults in a certain country think that healthy children should be required to be vaccinated". So, we look for the option that matches this claim structure.

Answer:

C. Less than 80% of adults in the country think that healthy children should be required to be vaccinated.