Mathematics, 26.01.2021 01:20 jacobmacalpine
Last year, the standard deviation of the ages of the students at UA was 1.81 years. Recently, a sample of 10 students had a standard deviation of 2.1 years. We are interested in testing to see if there has been a significant change in the standard deviation of the ages of the students at UA. At 95% confidence the null hypothesis
A. should be rejected
B. should not be rejected
C. should be revised
D. None of these alternatives is correct.
Answers: 2
Another question on Mathematics
Mathematics, 21.06.2019 14:30
Ablock of wood is a cube whose side is x in. long. you cut off a 1-inch thick piece from the entire right side. then you cut off a 3-inch thick piece from the entire top of the remaining shape. the volume of the remaining block is 2,002 in3. what are the dimensions of the original block of wood?
Answers: 2
Mathematics, 21.06.2019 16:00
Determine the mean and variance of the random variable with the following probability mass function. f(x)=( 729divided by 91) (1 divided by 9) superscript x baseline comma x equals 1,2,3 round your answers to three decimal places (e.g. 98.765).
Answers: 3
Mathematics, 21.06.2019 18:00
Explain how you can use the associative property to evaluate (7x50)x4.
Answers: 1
Mathematics, 21.06.2019 23:00
Mrs.sling bought a pound of green beans for $1.80. how much will mrs.tennison pay for 3 1/2 pounds of green beans?
Answers: 1
You know the right answer?
Last year, the standard deviation of the ages of the students at UA was 1.81 years. Recently, a samp...
Questions
English, 13.01.2021 22:40
Mathematics, 13.01.2021 22:40
Health, 13.01.2021 22:40
History, 13.01.2021 22:40
Mathematics, 13.01.2021 22:40
Mathematics, 13.01.2021 22:40
Biology, 13.01.2021 22:40
English, 13.01.2021 22:40
Mathematics, 13.01.2021 22:40
Mathematics, 13.01.2021 22:40
Mathematics, 13.01.2021 22:40
Social Studies, 13.01.2021 22:40
Mathematics, 13.01.2021 22:40
