Department secretary has found the average number of complaints per week over the past few years is 1.4. However after a change in major requirements, the complaints over last 8 weeks averaged M = 3.0, with SS = 16.  Has there been a significant increase in the number of student complaints over the past 8 weeks?  What kind of t-test?______________ Test using alpha = .05 and write an APA style conclusion. 1) H0:   H1: 2) Critical value: one or two-tailed? df= __ alpha = .05  __________   3) Calculations: SS given so start w/ variance   s2   SM   t = M –µ SM 4) Is there a difference? Reject the Null?     Write a sentence with APA stats.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 2BGP
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  • Department secretary has found the average number of complaints per week over the past few years is 1.4. However after a change in major requirements, the complaints over last 8 weeks averaged M = 3.0, with SS = 16.  Has there been a significant increase in the number of student complaints over the past 8 weeks? 
  • What kind of t-test?______________ Test using alpha = .05 and write an APA style conclusion.
  • 1) H0:
  •   H1:
  • 2) Critical value: one or two-tailed? df= __ alpha = .05  __________
  •  
  • 3) Calculations: SS given so start w/ variance
  •  
  • s2
  •  
  • SM
  •  
  • t = M –µ
  • SM
  • 4) Is there a difference? Reject the Null?     Write a sentence with APA stats. 

 

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