Mathematics, 26.08.2020 08:01 imorn4101
The quality control manager of a light bulb factory needs to estimate the average life of a large shipment of light bulbs. The process standard deviation is known to be 100 hours. A random sample of 64 light bulbs indicated a sample average life of 350 hours. Given the confidence interval calculated above. do you think the manufacturer has the right to state that the light bulbs last on average 400 hours?
a. No.
b. Yes.
c. Maybe.
d. Do not know
Answers: 2
Mathematics, 21.06.2019 17:00
Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .
Answers: 1
Mathematics, 21.06.2019 23:30
Which choice has the correct steps in graphing the solution set to the following inequality? -45_> 20x-5y
Answers: 1
Mathematics, 22.06.2019 00:50
Answer asap. you begin with 1/2 scoop of ice cream. since you're hungry, you ask the vendor for 2/7 more scoops of ice cream. then, you eat 5/8 scoops. how many scoops of ice cream are left on your cone? i will mark brainliest for first correct answer.
Answers: 2
Mathematics, 22.06.2019 01:00
#7. m is the midpoint of pq, the diameter of the circle o is 13in. and rm = 4in. find pm find pq
Answers: 1
The quality control manager of a light bulb factory needs to estimate the average life of a large sh...
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