Problem #2 a) Find the Sample Size asociated with the following Margin of Errors, m (12-pis) Given 100 Margin of Error, m: 5 CL - 90% What is Z-value for 90% CL by Margin of Error, ma 5 CL - (1/2-pla) Z- What is Z-value for 95% CL -2'amy = c) Margin of Error, m : 5 CL - 99% What is Z-value for 99% CL dj Compare the Sample Sizes for each case, as the Confidence Level increases, (1/2-pu) what happens to the Sample Size? What happens to the Sample Size if the Margin of Error is decreased to 57 Problems #3 (1-pts) Given 95% Confidence Interval for mothers who smoke is 5.7ibs to 6.5 Ibs The mean weight for all newborns is 7.2 Ihs Is there a Significant Difference at the 0.03 Significance Level between the two groups? Yes or No Why' Problems #4 Use SPSS for the following - Access the file "Calcium Levels.say" (12-pis) Does the Calcium data appear to be Normally Distributed? Yes or No (1/2-pb) Does the Box Plot show any Outliers? (12-pis) Median Mean Sad Deviation 95%% Confidence Interval UCL Now segregate the Calcium data by Sex (1-pts) For Miles (I-pi) For Females Mean Mean Sad Deviation Sid Deviation Sid Error Sid Error 95% Confidence Interval 95% Confidence Interval LCL UCL LCL UCL (1-pts) Is there a Significant Difference at the 0,05 Significance Level between the two groups? Yes or No Why?a. Z=1.645 SE = 1.7333 m =2.85 LCL= 109.95 UCL = 115.65 b. Z=1.96 SE = 1.7333 m =3.397 LCL= 109.403 UCL = 116.197 c. Z= 2.576 SE = 1.7333 m =4.464 LCL= 108.336 UCL = 117.264 d. As the confidence level increases, the margin of error also increases