You are planning a study to determine if mean height in a population has
changed. The po...
Mathematics, 21.05.2020 22:13 zahrast14
You are planning a study to determine if mean height in a population has
changed. The populations mean height in 1920 was 64 inches with a standard
deviation of 4 inches. The study needs a big enough sample to detect a change
of 1% with a power 0.8 and a significance of 0.05. How big should the sample
be?
A 307
B 70
C 69.09
D 306.25
Answers: 1
Another question on Mathematics
Mathematics, 21.06.2019 16:30
The length of the largest fish is 967.74 times greater than the length of the smallest fish. select a variable expression that shows the length of the largest fish, if 8 is the length of the smallest fish. a. s + 967.74 b. \[ \frac{967.74}{s} \] c. 967.74 - s d. 967. 74s
Answers: 1
Mathematics, 21.06.2019 20:00
Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.
Answers: 2
Mathematics, 21.06.2019 23:00
The length of an intercepted arc of a central angle of a circle is 4 cm. if the radius of the circle is 5 cm what is the measurement of the central angle to the nearest whole degree
Answers: 2
You know the right answer?
Questions
Mathematics, 26.08.2019 06:20
Spanish, 26.08.2019 06:20
History, 26.08.2019 06:20
English, 26.08.2019 06:20
Mathematics, 26.08.2019 06:20
Mathematics, 26.08.2019 06:20
History, 26.08.2019 06:20
English, 26.08.2019 06:20
Mathematics, 26.08.2019 06:20
Geography, 26.08.2019 06:20
Physics, 26.08.2019 06:20
