A survey asks a random sample of 300 adults in Ohio if they support an increase in the state sales tax from 5% to 6%, with the additional revenue going to education. Let X be the number of people in the sample who say they support the increase. Suppose that 40% of all adults in Ohio support the increase. The probability that X is more than 150 is...

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anonymous · Answer

I want to help you, not to solve the problem for you. Then answer a few questions first for I want to know your level:
1)What type of probability density function are you supposed to use here after realizing it is a problem of proportions?
2)What does the Central Limit Theorem say and what would be the sample proportion standard deviation according to answer #1 and what the Theorem says?

When you answer these questions, more will come to guide you to the solution