=+is higher than that for EC connections (as stated in the article)? Carry out the appropriate test
Question:
=+is higher than that for EC connections (as stated in the article)? Carry out the appropriate test using a significance level of .01. In reaching your conclusion, what type of error might you have committed? Note:
SAS reports the P-value for a two-tailed test.
Type N Mean Std Dev Std Error 1 20 17.4990 0.55012821 0.12301241 2 20 16.9000 0.48998389 0.10956373 Type Variances T DF Prob>|T|
1 Unequal 3.6362 37.5 0.0008 2 Equal 3.6362 38.0 0.0008
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Related Book For 
Applied Statistics For Engineers And Scientists
ISBN: 9781133111368
3rd Edition
Authors: Jay L. Devore, Nicholas R. Farnum, Jimmy A. Doi
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