Mathematics, 31.07.2021 20:10 hgghukghj1814
A medical researcher designs a drug to treat high blood pressure. She believes that people of different genders may respond differently to the new drug. What type of sample should be utilized to control for the possibility of different reactions based on gender?
A. stratified random sample
B. systematic sample
C. self-selecting sample
D. random sample
Answers: 2
Mathematics, 21.06.2019 21:40
The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?
Answers: 2
Mathematics, 22.06.2019 00:00
Which of the following statements are true about the graph of f (x) = 1/4 coz ( x + π/3) - 1? select two of the following that apply.
Answers: 1
A medical researcher designs a drug to treat high blood pressure. She believes that people of differ...
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