# Question: A company manufactures five volt power supplies However since there

A company manufactures five- volt power supplies. However, since there are manufacturing tolerances, there are variations in the voltage design. The standard deviation in the design voltage is 5%. Using a 99% confidence level, determine whether or not the following samples fall within the confidence interval:

(a) 100 samples, the estimate of μX = 4.7

(b) 100 samples, the estimate of μX= 4.9

(c) 100 samples, the estimate of μX= 5.4

refer to Equation (7.39)

(a) 100 samples, the estimate of μX = 4.7

(b) 100 samples, the estimate of μX= 4.9

(c) 100 samples, the estimate of μX= 5.4

refer to Equation (7.39)

**View Solution:**## Answer to relevant Questions

You collect a sample size N1 of data and find that a 90% confidence level has width, w. What should the sample size N2 be to increase the confidence level to 99.9% and yet maintain the same interval width, w? Let be a random sum of discrete IID random variables. Further, let HN (z) and HX (z) be the probability- generating functions of N and X, respectively. Find the probability- generating function of S assuming that N is ...Suppose the variance of an IID sequence of random variables is formed according to Where ů is the sample mean. Find the expected value of this estimate and show that it is biased. Show by example that the random process Z (t) = X (t) + Y (t) may be a wide sense stationary process even though the random processes X (t) and Y (t) are not.Let and be independent, wide sense stationary random processes ...Consider a discrete- time wide sense stationary random processes whose autocorrelation function is of the form Assume this process has zero- mean. Is the process ergodic in the mean?Post your question