Oil field pipes are internally coated in order to prevent corrosion. Researchers at a university investigated the influence that coating may have on the surface roughness of oil field pipes. A scanning probe instrument was used to measure the surface roughness of each section in a sample of 12 sections of coated interior pipe. The data (in micrometers) are shown in the table to the right. A Minitab analysis of the data is given below. Complete parts a and b. 2.54 1.44 2.15 1.99 1.45 1.68 2.32 1.35 2.18 One-Sample T: ROUGHD Mean 2.33 95% CI (1.69745, 2.20088) SE Mean StDev 2.15 1.81 Variable 0.11437 0.39617 12 1.94917 ROUGH a. Locate a 95% confidence interval for the mean surface roughness of coated interior pipe on the accompanying Minitab printout (Type integers or a decimals.) frec st Enter your answer in the edit fields and then click Check Answer Chock Answer Clear Al remaining e here to search

Q: Find csc(270)

A:

Q: tion LIc Simplify: - 5/3-4/343 – 3/75 Submit Question

A: To simplify:

Q: [(et (et + 5)dt

A:

Q: PLEASE SHOW STEPS  for only part (a) & (b)

A:

Q: Please tell me how to solve this problem. Thank you.

A:

Q: -1 = tanO/2

A: over

Q: 22 Perform the indicated operations (a) (4-2i) (4 + 2i) (b) (2 + 4i) ²

A: A) (4 - 2i) (4 + 2i) We know the formula (a+b) (a-b) = a2 - b2 So, expiration becomes, = 42 - (2i) 2…

Q: Find the value of AC

A: Step 1:Understand Similarity and RatiosTriangle ABD is similar to triangle ABC. Hence, the ratio of…

Q: • tan 8.

A: Consider a trigonometric function: T=tan 7π8

Q: đ = , b = , = , d = Find đ +?

A: Given,  a→ = 2, 4b→ = -3, 5c→ = 1, -4d→ = -5, -3 We have to find a→+ c→.

Q: 22 V2 V3

A:

Q: Please answer

A: The solution are next step

Q: đ = , 5 = , = , d = Find č ·b

A: Answer

Q: the value 61 is wrong its 62. Please recheck your work once

A: First 2 step is correct.

Q: Please use Venn diagram shading to solve- AU(BnC)

A: The detailed solution is as follows below:

Q: How do you solce part d?

A: Let, X= the number of incoming calls involving a fax messages among 25 incoming calls. This…

Q: Find if y = dy Inx dx x2

A: Given: y=lnxx2   Find: dydx=

Q: What is the sec2.4

A: The objective of the question is to find the secant of 2.4. The secant of an angle in trigonometry…

Matrices

‘Matrices’ is the plural form of the word matrix, and it is basically a spreadsheet in the form of a box. In mathematics, various functions can be carried out with matrices. Generally, a matrix comes in the shape of a square or rectangle. The elements are distributed horizontally in the form of rows, and vertically in the form of columns.