Write the equation of a circle with center (-10, 16) and radius 2. a
(x + 10)2 + (y - 16)2 = 4

b
(x -10)2 + (y + 16)2 = 4

c
(x + 10)2 + (y - 16)2 = 2

d
(x -10)2+ (y + 16)2 = 2

Arandom sample of 45 observations results in a sample mean of 68. the population standard deviation is known to be 23 a. compute the margin of error at a 959% confidence interval. b. compute the 95% confidence interval for the population mean c. compute the 90% confidence interval for the population mean. d. compute the 75% confidence interval for the population mean