Below You Are Given the Values Obtained from a Random $\mu$

Below you are given the values obtained from a random sample of 4 observations taken from an infinite population.

a.Find a point estimate for $\mu$ . Is this an unbiased estimate of $\mu$ ? Explain.
b.Find a point estimate for $\sigma$ ². Is this an unbiased estimate of $\sigma$ ²? Explain.
c.Find a point estimate for $\sigma$ .
d.What can be said about the sampling distribution of
? Be sure to discuss the expected value, the standard deviation, and the shape of the sampling distribution of 11ecf06b_be84_96e5_b512_aff0a4e65f1e_TB2075_11
.