Check Your Progress an arena, steel bars with a mean ultimate tensile strength of In building 400 Megapascal (MPa) with a variance of 81 MPa were delivered by the manufacturer. The project engineer tested 50 steel bars and found out that the mean ultimate tensile strength is 390 MPa. The decision for the extension of the contract with the manufacturer the engineer. Test the hypothesis whether or not there is no significant depends difference between the two means using a two-tailed test with a = 0.01. 1. What are the appropriate hypotheses for the two-tailed test? 2. What is the test statistic to be used and the reasons for its selection? 3. What is the critical value c? What is the value of the test statistic or the computed value? 5 Formulate a conclusion about the given situation. onie

Q: Letter C is 59E, not 53E

A: We need to write (59E)twelve in base 10. (It is given that face value of E is 11)

Q: 25+2=

A: First we calculate 2^5.2^5= 2x2x2x2x2=32

Q: Table for 77 and 78 mph 4.5 5.7 7.8 9.6 13.4 rpm 1,500 2,000 2,500 3,000 3,500 mpg 8.2 6.9 4.8 4.1…

A: The given problem is to find the quadratic regression for the model from the given data of fuel…

Q: The number of guest represented is not 85

A: Min  = 15Q1 = 30Median = 45Q2 = 55Max = 100

Q: fray > こa, ○くa32a Poove that,

A:

Q: LEGO® is internationally recognised as the top selling, most innovative and best quality component…

A: We know that: 1 m=100 cm  1 m=1000 mm  1 cm=10 mm

Q: Blank of 80 is 50

A: Blank of 80 is 50

Q: Subtract the lollowing

A:

Q: Answer number 9

A: Data given  9 balls =5(Red)+4(green) balls  Two balls selected

Q: Evaluate 0 b 0 10

A:

Q: Simplify 3-8=

A: We have given to simplify  3-8=3-3-5 3-8=0-5 3-8=-5

Q: hi i need help with 15

A: Obtain the probability that the size of the family is 4 or more. The probability that the size of…

Q: 60 30 7

A: Use trigonometric ratio

Q: — 33 > 5а + 2

A:

Q: 30x-121=29

A:

Q: Use the functions below to find g (4) – h (2) g (x) = 2 h (x) = x - 6

A: 8) Given functions are: gx=12xfx=x-6 Now, put x=4 in gx and x=2 in fx g4=124=3 h2=2-6=-4 Therefore,…

Q: För éach graph, elco bn b. a. wok daimnyton

A: Note- Since you have asked multiple question, we will solve the first question for you. If you want…

Q: with

A:

Average

In mathematics, everyone must have heard the term average in one place or other. Almost all types of calculation require taking out an average. In everyday life, the term is used for denoting a certain amount that can be said to be a typical quantity for multiple people or objects. In other words, if a group of people possesses a certain object, then the average gives us an idea regarding the quantity of the object possessed by each person. However, this is solely based on mathematical calculation. It is important to note that most people will not strictly have the average value in a group.