I need this question I only have 30min left !!!

Check My Work (2 remmng) The USA Today reports that the average expenditure on Valentine's Day is $10019. Do male and female consumers differ in the amounts they spend? The average expenditure in a sample survey of 47 male consumers was $135.67, and the average expenditure in a sample survey of 36 female consumers was $68.64. Based on past surveys, the standard deviation for male consumers is assumed to be $33, and the standard deVIation for female consumers is assumed to be $20. a. What is the point estimate of the difference between the population mean expenditure for males and the population mean expenditure for females (to 2 decimals)? b. At 99% condence, what is the margin of error (to 2 decimals)? [:19 c. Develop a 99% confidence interval for the difference between the two population means (to 2 decimals). Use zitable. (SQ-9: Hide Feedback