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
Mathematics, 21.06.2019 21:50, roxanneee2145
5. which description does not guarantee that a quadrilateral is a squar ajo is a parallelogram with perpendicular diagonals 0% has all sides congruent and all angles congruent o has all right angles and has all sides congruent 10% is both a rectangle and a rhombus 30%
Answers: 2
Mathematics, 22.06.2019 00:30, jayline2003
y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?
Answers: 1
Mathematics, 22.06.2019 01:30, nickeymcorrea
The pyraminx is a rubik's cube-type toy in the shape of a tetrahedron. the pyraminx shown below has edges 15\,\text{cm}15cm long and vertical height h=12.2\,\text{cm}h=12.2cm. the triangle drawn with dashed lines is a right triangle. what is the distance rr? round your answer to the nearest tenth.
Answers: 1
A scientist who studies sleep has developed a new technique to help people sleep each night. He
is...
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