Probability of undesirable side effects
The theoretical probability of undesirable side effects resulting from taking Grebex is 2 in 19. If 570 people take Grebex to lower their blood pressure, how many will encounter undesirable side effects?
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You find that this sample of workers averages $26 650 of personal life insurance. The population standard deviation is $12 000. Does the salesperson's claim appear valid? Use a level of significance of 5%.
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