Is it appropriate to use the Student's t statistic to construct a 95% confidence interval for the mean shade of Mezza Perla tile? If so, construct the confidence interval. If not, explain why not.

The article “An Automatic Visual System for Marble Tile Classification describes a measure for the shade of marble tile in which the amount of light reflected by the tile is measured on a scale of 0-255. A perfectly black tile would reflect no light and measure 0, and a perfectly white tile would measure 255. A sample of nine Mezza Perla tiles were measured, with the following results:
204.999 206.149 202.102 207.048 203.496
206.343 203.496 206.676 205.831


Yes it is appropriate, since there are no outliers.

Trades & Technology

You might also like to view...

Matched processors for two orthogonal signals for multiple access.

The following worksheet specifies a pair of 10-sample CDMA orthogonal data signals: sA sub "1" in B5:B14 and sB sub "1" in C5:C14. Random transmitted bits DA sub "t" and DB sub "t" are computed in B1 and D1. The transmitted signal sAT sub "i" (in D5:D14) = sA "sub "i" if DAt=1 and =-sA sub "i" if DAt=0. The transmitted signal sBTi (in E5:E14) = sBi if DBt=1 and =-sBi if DBt=0. The Gaussian noise sequence Ni SD ? sub "N" is specified in F1. The detected signal X sub "i" is computed in G5:G14. The matched processor component sAiX sub "i" is computed in H5:H14 and VA is computed in H16. The detected bit DAr is computed in B2 from VA. The matched processor component sB sub "i" X sub "i" is computed in I5:I14 and VB is computed in I16. The detected bit DB sub "r" is computed in D2 from VB.


a. What is the formula in B1?
b. What is the formula in D1?
c. What is the formula in D2?
d. What is the formula in F2?
e. What is the formula in D10?
f. What is the formula in E10?
g. What is the formula in F10?
h. What is the formula in G10?
i. What is the formula in H10?
j. What is the formula in H16?
k. What is the formula in B2?
l. What is the formula in I10?
m. What is the formula in I16?
n. What is the formula in D2?
o. What is the formula in L1?
p. What is the formula in L4?
q. Compose ResetMA.
r. Compose XmitMA.
s. Compose AutoMA.

Trades & Technology

Calculate the volume of a cylindrical shape, in cubic centimeters, when r = 48 cm and h = 14 cm. Carry the answer to two decimal places.

Trades & Technology

AutoCAD, IDEAS, and Pro-E/Creo are examples of

a. solid modeling software. b. civil engineering drawings. c. electrical drawings. d. electronic drawings.

Trades & Technology

After each GTAW bead is completed on a fillet weld, what must be done to the bead prior to starting the next

bead? a. Let it cool. b. Preheat it. c. Clean it with a grinder. d. Clean it with a wire brush.

Trades & Technology