(Solution Library) The Greensburg Chamber of Commerce wants to know whether the mean weekly salary of nurses is larger than that of grade school teachers. To
Question: The Greensburg Chamber of Commerce wants to know whether the mean weekly salary of nurses is larger than that of grade school teachers. To investigate, they collected the following sample information. Is it reasonable to conclude that the mean weekly salary of nurses is higher? Use the 0.01 significance level. Show hypotheses, pooled variation, decision rule, sample value, decision, and graph.
Teachers ($) 545 526 527 575 484 509 502 520 529 530 542 532 S=22.8
Nurses ($) 541 590 521 471 550 559 525 529
S=34.4
Hypothesis. Pooled variation. What is the Decision rule? Sample value?
Decision Graph.
Deliverable: Word Document 
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[Solution Library] The National Highway Association is studying
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The Choice of the Null and Alternative Hypotheses: What is the Claim? - MathCracker.com