Author Question: An experiment was conducted to compare the mean iron content in iron ore pieces determined by three ... (Read 125 times)

maegan_martin · **on:** Feb 14, 2020

Question 1

The results of a Tukey multiple comparison are summarized below.

Treatment

Sample Mean

B

35.4

C

31.5

A

20.7

a.	How many pairwise comparisons of the three treatments are there?

b. Which treatments are significantly different from each other?
c. Which treatments are not significantly different from each other?

Question 2

An experiment was conducted to compare the mean iron content in iron ore pieces determined by three different methods: (1) mechanical, (2) manual, and (3) laser. Five 1-meter long pieces of iron ore were removed from a conveyor belt, and the iron content of each piece was determined using each of the three methods. The data are shown below. How should the data be analyzed?

◦ completely randomized design with three treatments
◦ randomized block design with three treatments and five blocks
◦ randomized block design with five treatments and three blocks
◦ 3 × 5 factorial design

mcabuhat · **Reply #1 on:** Feb 14, 2020

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