Xavier is a salesperson who is paid a fixed amount of $455 per week. he also earns a commission of 3% on the sales he makes. if xavier wants to earn more than $575 in one week, how many dollars (x) in sales must he make?
a. x > 1,060
b. x > 4,000
c. x < 3,600
d. x < 1,060

A. find the power of the test, when the null hypothesis assumes a population mean of mu = 450, with a population standard deviation of 156, the sample size is 5 and the true mean is 638.47 with confidence intervals of 95 b. find the power of the test, when the null hypothesis assumes a population mean of mu = 644, with a population standard deviation of 174, the sample size is 3 and the true mean is 744.04 with confidence intervals of 95% c. find the power of the test, when the null hypothesis assumes a population mean of mu = 510, with a population standard deviation of 126, the sample size is 10 and the true mean is 529.44 with confidence intervals of 95