Mathematics, 26.02.2020 19:27 chriscook9965
In a random sample of 80 teenagers, the average number of texts handled in one day is 50. The 96% confidence interval for the mean number of texts handled by teens daily is given as 46 to 54. a. What is the standard deviation of the sample? b. If the number of samples were doubled
Answers: 2
= 50 and Sample size, n = 80 
is given by ; 
= 17.421Another question on Mathematics
Mathematics, 21.06.2019 14:00
9. (y^-5)^10y^10 a. y^-60 b. y^60 c. y^-150 d. y^150 find the simplified form of each expression. 10. (4/7^5)^2 a.8/14^10 b.16/49^25 c.16/49y^10 d.8/14y^25 11. determine if the number 3.43 times 10^-6 is written in scientific notation. if not, explain. a. yes; the number is written scientific notation. b. no; the first factor is not a number between 1 and 10. c. no; it is not written as a number times a power of 10
Answers: 3
Mathematics, 21.06.2019 20:00
Aball is dropped from a height of 10m above the ground. it bounce to 90% of its previous height on each bounce. what is the approximate height that the ball bounce to the fourth bounce?
Answers: 2
Mathematics, 21.06.2019 20:30
East black horse $0.25 total budget is $555 it'll cost $115 for other supplies about how many flyers do you think we can buy
Answers: 1
You know the right answer?
In a random sample of 80 teenagers, the average number of texts handled in one day is 50. The 96% co...
Questions
Mathematics, 07.05.2020 03:58
Computers and Technology, 07.05.2020 03:58
Mathematics, 07.05.2020 03:58
History, 07.05.2020 03:58
Engineering, 07.05.2020 03:58
English, 07.05.2020 03:58
Mathematics, 07.05.2020 03:58
Mathematics, 07.05.2020 03:58
