It costs you $10 to draw a sample of size n = 1 and measure the attribute

Question:

It costs you $10 to draw a sample of size n = 1 and measure the attribute of interest. You have a budget of $1,500.
a. Do you have sufficient funds to estimate the population mean for the attribute of interest with a 95% confidence interval 5 units in width? Assume σ = 14.
b. If you used a 90% confidence level, would your answer to part a change? Explain.