Mathematics, 04.12.2019 22:31, kokokakahi
How heavy a load (pounds) is needed to pull apart pieces of douglas fir 4 inches long and 1.5 inches square? here are data from students doing a laboratory exercise:
33190 31860 32590 26520 33280
32320 33020 32030 30460 32700
23040 30930 32720 33650 32340
24050 30170 31300 28730 31920
suppose that the strength of pieces of wood like these follows a normal distribution with standard deviation, 3000 pounds. let u (in greek) denote the mean load required to pull the wood apart.
a) give a 95% confidence interval for the mean load required to pull the wood apart.
suppose that the strength of pieces of woodl ike these follows a normal distribution with standard deviation being unknown to us.
b) give a 90% confidence interval for the mean load required to pull the wood apart.
Answers: 1
Mathematics, 21.06.2019 16:30, kelseybell2707
Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.
Answers: 1
Mathematics, 21.06.2019 22:00, kharmaculpepper
Question 13 (1 point) jerome is starting a new job. his contract states he will earn $42,000 the first year, and will get a 4% raise per year. which function s(x) represents jerome's salary after a certain number of years, x?
Answers: 1
Mathematics, 21.06.2019 23:00, SKYBLUE1015
Using only odd number for numerators write two different subtraction problems that have a difference of 3/4
Answers: 1
Mathematics, 22.06.2019 01:30, maymuu4life
As a self-employed seamstress, you know that it takes 7 yards of material to make 3 jackets. you bought 15 yards of material to make 7 jackets. did you buy enough material? if not, how much were you over or under?
Answers: 1
How heavy a load (pounds) is needed to pull apart pieces of douglas fir 4 inches long and 1.5 inches...
Mathematics, 11.03.2021 20:10
Mathematics, 11.03.2021 20:10
English, 11.03.2021 20:10
Mathematics, 11.03.2021 20:20
English, 11.03.2021 20:20