With sample mean x = 12.5, sample size n = 40 and population standard deviation = 4 find 99% confidence interval for population mean. use formula for one mean z-interval procedure in section 8.2 of etext where zα/2 = 2.575 with sample mean x = 12.5, sample size n = 40 and population standard deviation = 4 find 99% confidence interval for population mean. use formula for one mean z-interval procedure in section 8.2 of etext where zα/2 = 2.575

Desmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? 8,000 + 24x 8,000 - 24x 8,000 + 2x 8,000 - 2xdesmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? 8,000 + 24x 8,000 - 24x 8,000 + 2x 8,000 - 2x