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Assignment help 1859

Please see attached for the following questions. Instructions for Exercises 12.2 ) Make an Excel scatter plot. What does it suggest aboutthe population correlation between X and Y? (b) Make an Excel worksheet to calculate SSxx , SSyy , and SSxy . Use these sums to calculate the sample correlation coefficient. Check your work by using Excel’s function =CORREL(array1,array2). (c) Use Appendix D to find t.05 for a two-tailed test for zero correlation. (d) Calculate the t test statistic. Can you reject ? = 0? (e) Use Excel’s function =TDIST(t,deg_freedom,tails)to calculate the two-tail p-value.12.3 Data Set Telephone Hold Time (min.) for Concert Tickets CallWaitOperators (X)


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