Using 69% confidence level, find the confidence interval using your sample proportion

Subject:MathPrice:2.86 Bought8

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Using 69% confidence level, find the confidence interval using your sample proportion. (HINT: Use the sample proportion, and sample size in the example - though change the z-critical value for your new confidence level) 

95% confidence level

Sample Proportion less than Sample Mean: 4/10 or .40

P: .40

Q: .60

Sample Size: 10

Z-Critical Value: 1.959963985

Margin Error: 0.28402577

Lower Margin: 0.41597423= 42%

Higher Margin: 0.9840257= 98%