PLEASE HELP AND FAST PLEASE 2. To help evaluate the original report, draw a normal curve for the data Marjin-O'Heara
collected. Include the values of the mean and the first three standard deviations in your
sketch. (4 points: 1 point for the curve, 3 points for correct critical values)
1
3. The client was hoping for a likability score of at least 5.2. Use your sample mean and
standard deviation identified in the answer to question 1 to complete the following table for the
margins of error and confidence intervals at different confidence levels. Note: No further
calculations are needed for the sample mean. (6 points: 2 points for each completed row)
Margin of error
Confidence
level
Center of Lower
confidence boundary of
interval
confidence
(sample mean) interval
Upper
boundary of
confidence
interval
68%
95%
99.7%