The options for filling the blanks are given just before the blank. BRICK POROSI

Question

The options for filling the blanks are given just before the blank.

BRICK   POROSITY   DIAMETER

A            18                12

B           18.3              9.7

C           16.3              7.3

D            6.9              5.3

E           17.1             10.9

F           20.4             16.8

Extending the life of an aluminum smelter pot. An investigation of the properties of the bricks used to line aluminum smelter pots was published in The American Ceramic Society Bulletin (Feb. 2005) Six different commercial bricks were evaluated. The life length of a smelter pot depends on the porosity of the brick lining (the less porosity, the longer life); consequently, the researchers measured the apparent porosity of each brick specimen, as well as the mean pore diameter of the brick. You fit a straight-line model relating the apparent porosity y (in percent) of the brick to mean pore diameter x (in micrometers) using the data are given in the table above.

.

a- Find a 95% confidence interval for the true slope of the line.

95% confidence interval for the true slope is Fill in the Blank 01---- ± Fill in the Blank 02----- (write your answer with 4 decimals (example: 0.1234 or 1.2345)).

Reach conclusion;

Write 1 if; “The confidence interval fails to conclude that the slope of the line differs from 0.”
Write 2 if; “The confidence interval concludes that the slope of the line differs from 0.”

Fill in the Blank 03------- (Write either 1 or 2)

b- Conduct a test (at a = .05) to determine if the true slope of the line differs from 0.

State the hypothesis;

                                                       Options: (Beta 0, Beta 1, Beta 2, Beta 1 and 2, Beta 0 and 1, Beta 0 and 2)                        (<, >,=, not equal, >=,<=)       A Value(1.23 or 0.12)




Answer: H0: Fill in the Blank 04--- Fill in the Blank 05--          Fill in the Blank 06--

             Ha: Fill in the Blank 07-- Fill in the Blank 08--           Fill in the Blank 09--

State the critical region;

Fill the table by selecting only one option in each column. If your answer is one tailed, just fill the first row.

Options (z, t, F)         (<, >,=, not equal,>=,<=)      A Value(1.234 or 0.123)

Answer Fill the Blank 10 Fill in the Blank 11         Fill in the Blank 12

           Fill in the Blank 13 Fill in the Blank 14        Fill in the Blank 15

Calculated test statistics is Fill in the Blank 16 ---(You must write your answer with 3 decimals (example: 0.123 or 1.234)).

Reach conclusion:

Write 1 if H0 is rejected.

Write 2 if H0 can NOT be rejected.

Fill in the Blank 17 (Write either 1 or 2)----

Write 1 if; “The test of hypothesis fails to conclude that the slope of the line differs from 0.”

Write 2 if; “The test of hypothesis concludes that the slope of the line differs from 0.”

Fill in the Blank 18 (Write either 1 or 2)-----

.c- According to the conclusions reached above, determine if the straight-line model is useful or not in predicting the apparent porosity percentage of a brick.

Write 1 if your answer is “useful.”

Write 2 if your answer is “NOT useful.”

Fill in the Blank 19 (Write either 1 or 2)-----
                                                       Options: (Beta 0, Beta 1, Beta 2, Beta 1 and 2, Beta 0 and 1, Beta 0 and 2)                        (<, >,=, not equal, >=,<=)       A Value(1.23 or 0.12)
Fill in the Blank 19 (Write either 1 or 2)-----

Explanation / Answer

X

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.