Mathematics, 11.12.2021 05:50 fmw812
CASE :
An electrical company claims that the average life of the bulbs it manufactures is 1200 hours with a standard deviation of 250 hours. If a random sample of 100 bulbs is chosen, what is the probability that the sample mean will be :
a. greater than 1150 hours?
b. less than 1250 hours?
c. between 1150 and 1250 hours ?
REMINDERS :
1. Make sure that you follow the step-by-step solutions in solving probability problems of sample means.
2. Don't forget to shade and label the probability distribution (graph).
Answers: 2
Another question on Mathematics
Mathematics, 21.06.2019 16:00
Find the required measurements of the following trapezoids. a = 8 cm b = 16 cm h = 10 cm
Answers: 2
Mathematics, 21.06.2019 18:00
Describe the relationship between the angles of similar triangles and the sides of similar triangles
Answers: 1
Mathematics, 21.06.2019 18:30
Suppose your school costs for this term were $4900 and financial aid covered 3/4 of that amount. how much did financial aid cover? and how much do you still have to pay?
Answers: 1
Mathematics, 21.06.2019 22:30
Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.
Answers: 3
You know the right answer?
CASE :
An electrical company claims that the average life of the bulbs it manufactures is 1200 hou...
Questions
Mathematics, 27.02.2021 03:30
Mathematics, 27.02.2021 03:30
Mathematics, 27.02.2021 03:30
Geography, 27.02.2021 03:30
Mathematics, 27.02.2021 03:30
Mathematics, 27.02.2021 03:30
Biology, 27.02.2021 03:30
English, 27.02.2021 03:30
