Question

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Required information The thicknesses of eight pads designed for use in aircraft engine mounts are measured. The results, in mm, are 41.83, 41.01, 42.68, 41.37, 41.83, 40.5, 41.70, and 41.42. Assume that the thicknesses are a sample from an approximately symmetric distribution. Can you conclude that the mean thickness is greater than 41 mm? Compute the appropriate test statistic and find the P-value. The appropriate test statistic and the P-value are and respectively. Round the P-value to four decimal places. We (Click to select) conclude that the mean thickness is greater than 41 mm. (Click to select) can cannot

Answer 1

TEXAS INSTRUMENTS TI-83 Plus T-Test 41 t=2.384286353 P=.6242875241 x=41.5425 Sx=.6435559694 n=8 STAT PLOT F1 TBLSET F2 FORMAT F3 CALC F4 TABLE F5 Y= WINDOW ZOOM TRACE GRAPH QUIT INS 2nd MODE DEL A-LOCK LINK LIST ALPHA X,1,0,n STAT TEST A ANGLE B DRAW C DISTR MATH APPS PRGM VARS CLEAR MATRIX D SIN-1 E cos-1 F TAN-1 GT H SIN COS TAN X-1 EE K } e M 72 7 ). 을 10X Nu PW Q[ R LOG 7 00 9 х et S L4 TL5 U L6 V] 20 LN 4 5 6 RCL Z L3 ө МЕМ STO X L1 Y L2 1 CATALOG í 2 3 + OFF ANS ? ENTRY SOLVE ON P ENTER

TEXAS INSTRUMENTS TI-83 Plus T-Test 242 t= -2.610711533 P=.6842772623 =41.5425 Sx=.6435559694 n=8 STAT PLOT F1 TBLSET F2 FORMAT F3 CALC F4 TABLE F5 Y= WINDOW ZOOM TRACE GRAPH QUIT INS 2nd MODE DEL A-LOCK LINK LIST ALPHA X,1,0,n STAT TEST A ANGLE B DRAW C DISTR MATH APPS PRGM VARS CLEAR MATRIX D SIN-1 E cos-1 F TAN-1 GT H SIN COS TAN X-1 EE K } e M 72 7 ) 을 10X Nu O PW Q[ R LOG 7 8 9 х et S L4 TL5 U L6 V] w LN 4 5 6 RCL X L1 Y L2 Z L3 ө МЕМ STO 1 2 3 + OFF ? ENTRY SOLVE CATALOG í 0 ANS -- ON ENTER