1.Blood pressure:High blood pressure has been identified as a risk factor for heart attacks and strokes. The proportion of U.S. adults with high blood pressure is0.4. A sample of41U.S. adults is chosen.. Round the answer to at least four decimal places.

Itisappropriate to use the normal curve since np =10 andn1 p ___(Choose one)10

Find the probability that more than44%of the people in this sample have high blood pressure. _______

A new sample of65adults is drawn. Find the probability that more than38%of the people in this sample have high blood pressure._______

Find the probability that the proportion of individuals in the sample of65who have high blood pressure is between0.23and0.35______

Find the probability that less than24%of the people in the sample of65have high blood pressure.______

Would it be unusual if more than39%of the individuals in the sample of65had high blood pressure? It

(Choose one)be unusual if more than39%of the individuals in the sample of65had high blood pressure since the probability is._____

2.Below,nis the sample size,pis the population proportion of successes, andXis the number of successes in the sample. Use the normal approximation and the TI-84 Plus calculator to find the probability. Round the answer to at least four decimal places.

n=85, p =0.48

P>(X>32)=

3. Stress at work: In a poll conducted by the General Social Survey,81%of respondents said that their jobs were sometimes or always stressful. One hundred and seventy-five workers are chosen at random. Use the TI-84 Plus calculator as needed. Round your answer to at least four decimal places.

(a) Approximate the probability that150or fewer workers find their jobs stressful.

(b) Approximate the probability that more than140workers find their jobs stressful.

(c) Approximate the probability that the number of workers who find their jobs stressful is between146 and 150 inclusive.

Please complete

IfXis a binomial random variable and ifnp>10 and n (1- p) >10, thenXis approximately normal withX=(Choose one)andX=Square root

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