In Born togetherReared apart: the Landmark Minnesota twin study (2012), Nancy Segal discusses the efforts of research psychologists at the University of Minnesota to understand similarities and differences between twins by studying sets of twins who were raised separately. The Excel Online file below contains critical reading SAT scores for several pairs of identical twins (twins who share all of their genes), one of whom was raised in a family with no other children (no siblings) and one of whom was raised in a family with other children (with siblings). Construct a spreadsheet to answer the following questions.

i0.2 Excel Activity 4a , Condence Interval of Mean Difference, Hypothesis Test for Two Means (Structured) Due tn 3 recent change by Micrnsoft ynu will need tn open the XLMiner Analysis Tnanak add-in manually from the heme rihbnn. Screenshot of Tnanai-c - E Open spreadsheet a. What is the mean difference between the critical reading SAT scares fer the twins raised with he siblings and the twins raised with siblings? S (tr: 2 decimals) I1. vaide a 90% condence interval estimate of the mean difference between the critical reading SAT scores fur die twins raised with no siblings and the twins raised with siblings. i:- S) no 2 decimals) c. Cunduct a hypothesis test of equality bf the critical reading SAT scbres for the twins raised with no siblings and the twins raised with siblings. p-value is |:| (to 4 decimals) At a = .05, what is yuur conclusiun? that there is a difference between the mean scores fur the nu sibling and with sibling groups. SAT Score SAT Score With Change in SAT No Siblings Siblings Score (di) Part a 420 416 After reading these instructions delete all text in this shaded area. 575 516 593 663 Use the XLMiner Analysis ToolPak to conduct your analysis. 407 440 454 509 After deleting all text in this shaded area, set the output range in 450 518 the ToolPak to the top left cell of this area (E2). CO 494 498 595 675 Your analysis output should fit into this shaded area. 10 547 505 11 688 690 12 601 431 13 633 688 14 500 498 15 630 572 16 574 459 17 597 605 18 503 553 19 638 653 20 495 515 21 603 634 Formula 22 Part b 23 The 90% confidence interval #N/A 24 C.I.Lower Limit 25 C.I.Upper Limit #N/A 26 27 Part c Degrees of Freedom #N/A 28 29 Test statistic #N/A 30 31 #N/A 32 p-value 33 0.01 34 Significance Level (Alpha) 35 Can we conclude that there is difference between the mean scores? (Enter "Can 36 conclude" or "Cannot conclude") #N/A 37 38