Mathematics, 05.03.2020 19:55 kmart4062
A sample of 30 is taken from a population of Inconel weldments. The average thickness is 1.87 inches at a key location on the part. The sample standard deviation is 0.125 inches and will be used as an estimate of population standard deviation. Calculate the 99% confidence interval. (Hint: Z(a/2) is 2.58 for a 99% CI)a. (1.811, 1.929)b. (1.611, 1.729)c. (1.711, 1.829)d. (1.511, 1.629)
Answers: 2
Mathematics, 21.06.2019 13:20, Ghhkgu5120
There are 12 boy and13 girls in a class. if the teacher randomly chooses a student’s name out of a hat what is the probability it will be a girl
Answers: 2
A sample of 30 is taken from a population of Inconel weldments. The average thickness is 1.87 inches...
History, 20.07.2019 03:00
Physics, 20.07.2019 03:00
History, 20.07.2019 03:00
Mathematics, 20.07.2019 03:00