Can you help me understand how to solve this problem?

Can you help me understand how to solve this problem?.

Can you help me understand how to solve this problem? 

According to Catalyst, 15.4% of executive positions in Fortune 500 companies are held by women. Suppose a random sample of 180 Fortune 500 executives is selected.     

(a)      What is the standard error of the proportion?

(b)     What is the probability that, in this sample, more than 20% are women?

Can you help me understand how to solve this problem?

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