do it in full step

ECON 380: business statics Assignment 5 Due Date :4/5/2021 Problem 1: (50 points) The Dublin retailer age study provided the following data on the ages of customers from independent random samples taken at the two store locations Inner city store Out of town store n1 = 35 12 = 48 Sample mean = 39 years Sample mean = 34 years Population standard deviation = 9 years Population standard deviation = 10 years Perform hypothesis testing to investigate the difference between the population mean ages at the town stores (using a = 0.05) , what is your conclusion ? (Show your work in detail ) Problem 2: (50 points) SAT test is a commonly used test for university entrance. Scores for independent samples of students is shown below . The first sample shows scores for students whose parents are college graduates . The second sample shows scores for students whose parents are high school graduates Students parents College graduate High school graduates 480 487 490 492 534 533 580 478 650 526 479 425 554 410 486 485 550 515 528 390 572 578 524 497 592 Perform hypothesis testing to determine whether the sample data support the hypothesis that students show a higher population mean SAT scores if their parents were college graduates (using a = 0.10) what is your conclusion? (Show your work in detail)