subject
Mathematics, 03.12.2021 23:40 guadalupemarlene2001

It is essential in the manufacture of machinery to utilize parts that conform to specifications. In the past, diameters of ball-bearings produced by a certain manufacturer had a variance of 0.00156. To cut costs, the manufacturer instituted a less expensive production method. The variance of the diameters of 100 randomly sampled ball bearings produced by the new process was 0.00211. Do the data provide sufficient evidence to indicate that diameters of ball-bearings produced by the new process are more variable than those produced by the old process?

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 12:40
The figure above shows the lengths of thesides of a rectangle in cm. find the valuesof x and y and then the area of the rectangle.sides: top= 3x - yleft= 3y + 4bottom= 2x + yright= 2x - 3 use both methods, elimination and substitution, if possible.
Answers: 1
question
Mathematics, 21.06.2019 19:50
The graph shows the distance kerri drives on a trip. what is kerri's speed?
Answers: 3
question
Mathematics, 21.06.2019 20:00
Ke’ajah has a coupon for 1/3 off the regular price, t, of a tent. which expression represents the price of the tent using the coupon? select the two correct expressions. a. 1/3t b. 2/3t c. t - 1/3 d. t - 2/3 e. t - 1/3t f. t - 2/3t
Answers: 1
question
Mathematics, 21.06.2019 20:00
Aubrey read 29 books and eli read 52 books what number is equal to the number of books aubrey read?
Answers: 1
You know the right answer?
It is essential in the manufacture of machinery to utilize parts that conform to specifications. In...
Questions
question
History, 09.10.2019 00:40
question
Mathematics, 09.10.2019 00:40
question
Mathematics, 09.10.2019 00:40