Mathematics, 17.03.2022 22:00 mollydoll
A scientist who studies sleep has developed a new technique to help people sleep each night. He
is conducting a study of 100 people and wants to determine if there is a significant difference in
Deople's amount of sleep before using the technique compared to after using the technique.
Which of the following describes the scientist's null and alternative hypotheses?
O null hypothesis: 4p = 0; alternative hypothesis: Lp 70
O null hypothesis: 4y = 0; alternative hypothesis: 4p = 0
O null hypothesis: 4-12 = 0; alternative hypothesis: 4-170
null hypothesis: 44-470; alternative hypothesis: 44-42 = 0
Answers: 3
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Aresearch study is done to find the average age of all u.s. factory workers. the researchers asked every factory worker in ohio what their birth year is. this research is an example of a census survey convenience sample simple random sample
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1. how do you find p(a and b) if a and b are dependent events for two or more actions, such as selecting two candies and drawing p(green, and then pink)?
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Which of the following is true about the following construction of a tangent to a circle from a point outside of the circle?
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A scientist who studies sleep has developed a new technique to help people sleep each night. He
is...
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