subject
Mathematics, 09.12.2019 19:31 eturner518

The manufacturer of hardness testing equipment uses steel-ball indenters to penetrate metal that is being tested, however, the manufacturer thinks it would be better to use a diamond indenter so that all ypes of metal can be tested. because of differences between the two types of indenters, it is suspected that the two methods will produce different hardness readings. the metal speciments to be tested are large enough so that two indentions can be made. therefore, the manufacturer uses both indenters on each specimen and compares the hardness readings. construct a 95% confidence interval to judge whether the two indenters resul in different measurements. note: a normal probability plot and boxplot indicate that the differences are approximately normally distributed with no outliers. specimen steel ball diamond1 51 532 57 553 61 634 70 745 68 696 54 567 65 688 51 519 53 56construct a 95% confidence interval to judge whether the two indenters result in different measurements, where the differences are computed as "diamond minus steel ball"the 95% confidence interval to judge whether the two indeners result in different measurements is?

ansver
Answers: 3

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 16:00, michellealvarez985
Quadrilateral wxyz is on a coordinate plane. segment yz is on the line x+y=7 and segment xw is on the line x+y=3. which statement proves how segments yz and xw are related
Answers: 1
image
Mathematics, 21.06.2019 18:50, karen718
Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15
Answers: 1
image
Mathematics, 21.06.2019 21:30, foreverandalways80
Joanie wrote a letter that was 1 1/4 pages long. katie wrote a letter that was 3/4 page shorter then joagies letter. how long was katies letter
Answers: 1
image
Mathematics, 21.06.2019 23:20, wereallmadhere111
Question 4 of 102 pointsjuliana had $96, which is eight times as much money as al had. how mucmoney did al have? select the correct solution method below, representingals money with x.
Answers: 2
You know the right answer?
The manufacturer of hardness testing equipment uses steel-ball indenters to penetrate metal that is...

Questions in other subjects:

Konu
Mathematics, 03.06.2020 03:57