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Question: A report from the office of the superintendent claims that the average reading test score of 4th …



A report from the office of the superintendent claims that the
average reading test score of 4th grade students in the school
district is 76. A group of parents suspects that the real mean is
lower than this reported score so they draw a random sample
consisting of 37 4th grade student reading scores. they find that
the sample mean is 74 and the sample standard deviation is 4.5. To
test the superintendent’s office claim, state the correct null and
alternative hypotheses: a) H0 : LaTeX: /muμμ LaTeX: /ge≥≥ 76 VS Ha
: LaTeX: /muμμ LaTeX: <<< 76 b) H0 : LaTeX: /muμμ LaTeX:
/ge≥≥ 74 VS Ha : LaTeX: /muμμ LaTeX: <<< 76 c) H0 : LaTeX:
/muμμ LaTeX: /ge≥≥ 76 VS Ha : LaTeX: /muμμ LaTeX: /le≤≤ 76 d) H0 :
LaTeX: /muμμ = 76 VS Ha : LaTeX: /muμμ LaTeX: /le≤≤ 76 e) H0 :
LaTeX: /muμμ LaTeX: /le≤≤ 76 VS Ha : LaTeX: /muμμ LaTeX:
>>> 76 d) a) b) e) c) Previous Next

  

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