Imagine that a circuit breaker opened the circuit every time that u operated the light, coffee maker, and microwave at the same time. what could be causing this?

Asynthetic fiber used in manufacturing carpet has tensile strength that is normally distributed with mean 75.5 psi and standard deviation 3.5 psi. how is the standard deviation of the sample mean changed when the sample size is increased from n equals 8 to n equals 47