Mathematics, 27.11.2019 19:31 jonquil201
The average number of pages for a simple random sample of 40 physics textbooks is 435. the average number of pages for a simple random sample of 30 mathematics textbooks is 410. assume that all page length for each types of textbooks is normally distributed. the standard deviation of page length for all physics textbooks is known to be 40, and the standard deviation of page length for all mathematics textbooks is known to be 40.
part one: assuming that on average, mathematics textbooks and physics textbooks have the same number of pages, what is the probability of picking samples of these sizes and getting a sample mean so much higher for the physics textbooks (one-sided p-value, to four places)?
part two: assuming that on average, mathematics textbooks and physics textbooks have the same number of pages, what is the probability of picking samples of these sizes and getting sample means as far apart as we did (two-sided p-value, to four decimal places)
Answers: 3
Mathematics, 21.06.2019 13:20
Which of the following is the rational exponent expression of 6 root f
Answers: 1
Mathematics, 21.06.2019 15:30
State whether weight is a function of height for the six students and explain. a. yes, height is a function of weight because two students weigh 165 pounds but have different heights. b. no, height is not a function of weight because two students weigh 165 pounds but have different heights. c. yes, weight is a function of height because for each value of height there is one corresponding value of weight. d. no, weight is not a function of height because there is not enough data to determine a function.
Answers: 1
Mathematics, 21.06.2019 16:00
5× 1/2 = ? a) more than 5 because you are multiplying by a whole number b) 5/10 because you multiply the numerator and denominator by 5 c) less than 5 because you are multiplying by a number that is more than 1 d) less than 5 because you are multiplying by a number that is less than 1
Answers: 3
Mathematics, 21.06.2019 18:00
14. (05.02 lc) what is the value of y in the solution to the following system of equations? (5 points) 2x + y = −4 5x + 3y = −6
Answers: 1
The average number of pages for a simple random sample of 40 physics textbooks is 435. the average n...
Mathematics, 08.01.2021 01:30
Mathematics, 08.01.2021 01:30
Social Studies, 08.01.2021 01:30
Mathematics, 08.01.2021 01:30
Business, 08.01.2021 01:30
Mathematics, 08.01.2021 01:30
Social Studies, 08.01.2021 01:30
Social Studies, 08.01.2021 01:30
Spanish, 08.01.2021 01:30
Arts, 08.01.2021 01:30