A leakage test was conducted to determine the effectiveness of

A leakage test was conducted to determine the effectiveness of a seal designed to keep the inside of a plug airtight. An air needle was inserted into the plug, and the plug and needle were placed under water. The pressure was then increased until leakage was observed. Let equal the pressure in pounds per square inch. Assume that the distribution of X is N(μ, σ2). The following n = 10 observations of X were obtained:
A leakage test was conducted to determine the effectiveness of

Use the observations to
(a) Find a point estimate of μ.
(b) Find a point estimate of σ.
(c) Find a 95% one-sided confidence interval for μ that provides an upper bound for μ.

Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...