Cara wants to buy jeans at a store that is giving 10% off everything. The tag on the jeans is marked down 50%. The original price is $49.98. Cara says that the total cost will be the same whether you apply the percents separately or together. Do you agree with her? Why or why not? ​

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