Data set (looking for SAS help or handwritten help)! loc var fertilizer yield Waseca velvet a 146.6 Waseca trebi a 150.7
Posted: Mon Nov 15, 2021 11:02 am
Data set (looking for SAS help or handwritten
help)!
loc var fertilizer yield
Waseca velvet a 146.6
Waseca trebi a 150.7
Waseca manchuria a 191.5
Waseca peatland a 145.7
Morris velvet a 82.3
Morris trebi a 78.4
Morris manchuria a 131.3
Morris peatland a 89.6
Duluth velvet a 119.8
Duluth trebi a 124
Duluth manchuria a 140.8
Duluth peatland a 124.8
Waseca velvet b 100.4
Waseca trebi b 112.2
Waseca manchuria b 147.7
Waseca peatland b 108.1
Morris velvet b 103.1
Morris trebi b 116.5
Morris manchuria b 139.9
Morris peatland b 129.6
Duluth velvet b 98.9
Duluth trebi b 96.2
Duluth manchuria b 125.5
Duluth peatland b 85.7
Part 1: Barley data. Immer et al. (1934) conducted an experiment to compare the yield of four varieties of barley (manchuria, velvet, trebi and peatland) when paired with two different fertilizers (“A” and “B”). Three locations in Minnesota were selected for the experiment. At each location, 8 plots were established, and the variety x fertilizer combinations were randomized to the plots such that each unique variety x fertilizer combination appeared exactly once at each location. The yield of each plot was measured at the end of the growing season. The data are contained in the file barley.txt, which can be found on the course website. The data set contains the following variables: loc The loc]ation: Waseca, Morris, or Duluth var The (var]iety of barley fertilizer The type of fertilizer provided yield The response. The investigator is interested in characterizing the differences among the barley varieties, between the fertil- izer treatments, and any possible interaction between barley variety and fertilizer. The location is considered a blocking factor. The investigator is interested in drawing inferences that apply to these three specific loca- tions, suggesting that the blocking factor should be modeled using a fixed effect. Use PROC GLM to answer question 1.
1. (6 points) Provide a brief verbal answer to each question below. Support your answer with an appro- priate test statistic and p-value. Show some work or computer code. 2 points each. (a) Is there evidence that the effect of the fertilizer treatment differs among the barley varieties? (b) Is there evidence that the mean yield differs among the barley varieties? (c) Is there evidence that the yield differs between the two fertilizers?
help)!
loc var fertilizer yield
Waseca velvet a 146.6
Waseca trebi a 150.7
Waseca manchuria a 191.5
Waseca peatland a 145.7
Morris velvet a 82.3
Morris trebi a 78.4
Morris manchuria a 131.3
Morris peatland a 89.6
Duluth velvet a 119.8
Duluth trebi a 124
Duluth manchuria a 140.8
Duluth peatland a 124.8
Waseca velvet b 100.4
Waseca trebi b 112.2
Waseca manchuria b 147.7
Waseca peatland b 108.1
Morris velvet b 103.1
Morris trebi b 116.5
Morris manchuria b 139.9
Morris peatland b 129.6
Duluth velvet b 98.9
Duluth trebi b 96.2
Duluth manchuria b 125.5
Duluth peatland b 85.7
- Data Set Looking For Sas Help Or Handwritten Help Loc Var Fertilizer Yield Waseca Velvet A 146 6 Waseca Trebi A 150 7 1 (203.58 KiB) Viewed 79 times
- Data Set Looking For Sas Help Or Handwritten Help Loc Var Fertilizer Yield Waseca Velvet A 146 6 Waseca Trebi A 150 7 2 (71.23 KiB) Viewed 79 times
1. (6 points) Provide a brief verbal answer to each question below. Support your answer with an appro- priate test statistic and p-value. Show some work or computer code. 2 points each. (a) Is there evidence that the effect of the fertilizer treatment differs among the barley varieties? (b) Is there evidence that the mean yield differs among the barley varieties? (c) Is there evidence that the yield differs between the two fertilizers?