INSTRUCTIONS OF COLORS HERE!
MW Homework 5 (version 1) [Autosaved] Q Search Sheet Home Insert Page Layout Formulas Data Review View 9 . . Store Bing Maps M . + A PivotTable Recommended Table Pictures Shapes My Add-ins People Graph Recommended . EE. . Sparklines Slicer Hyperlink New Text Header & PivotTables Charts Comment Box Footer N86 X V fx D G H K N Q R S 87 According to Thomson Financial, through January 25, 2006, the majority of companies reporting profits had beaten estimates. Now suppose that for the 4th quarter of 2012, 155 of a random sample of 260 companies reported profits that had beaten estimates. Use this latest information to answer the following questions. 93 Question 2A Can you conclude the proportion of companies in the 4th quarter of 2012 that beat estimates is greater than 55% at a 0.05? Hor p Step 1 H. : , " , 5.2. 2 H or P H. : z stat, t stat, z crit, t crit Step 2 Step 3: Fill in row 103 if the hypothesis is one tailed. z stat, t stat, z crit, t crit Reject Ho if <.>, " , 5,2, Fill in row 107 if the hypothesis is two tailed. The smaller number must be typed first. z stat, t stat, z crit, t crit z stat, t stat, z crit, t crit Reject Ho if or z stat, t stat, z crit, t crit <. step reject fail to ho tisetc tinsetc h or p>, ", 5,2, 2 Step 6 Step 7: Fill in row 117 if the Z table is appropriate. P-value Fill in row 121 if the t table is appropriate. The lower boundary must go on the left and the upper boundary on the right. P-value , ", 5,2, 8 Question 20 Construct a 98% confidence interval for the true proportion of companies in the 4th quarter of 2012 that beat estimates. 126 Lower Endpoint Upper Endpoint 127 128 139 HWNotes HWExcelDirections A HW A Texting Unemployed + Ready + 80%MW Homework 5 (version 1) [Autosaved] Q Search Sheet Home Insert Page Layout Formulas Data Review View Calibri (Body) * 11 . A- A =1 Wrap Text General Insert 2 * Delete AP. Paste B E Merge & Center 1 % ) 00 Conditional Format Cell Formatting as Table Styles Format Sort & Filter D1 X V fx LEGEND D E F G H LEGEND W N Answer must be typed to either 2 or 3 decimals depending on whether the Z or t table is appropriate. Please use the tables provided in STAT 3331 (not the tables in the textbook). Answer must be typed to four decimals UT Answer must be chosen from drop down menu Answer must be derived using cell references TISETC There is significant evidence to conclude 00 TINSETC There is not significant evidence to conclude 10 12 tions 1-3 by Using the TI-30XA (or other approved) Calculator 13 ry all decimals until you reach your answer, then round to four decimals. 14 15 16 17 18 all League (NFL) game, that the players spend a lot of time standing around between plays? The following data authanks fora similar meAhlAm I HWNotes HWExcelDirections A HW A Texting A Unemployed + Ready + 180%
