The mean height of he trees at "Festival of Trees" is getting larger each year

()Grades for David Mercado Belt X _ Classes X Classwork for 4 DeLeonPardini, X * Course Hero X + X C classroom.google.com/u/1/w/MjUOODU3MDQ1Mjc1/t/all OF David Mercadobeltran - Assignment 18 T Tests and Intervals.pdf K Open with Annotate with Kami K Open with Kami ... Assignment #18 - T Tests and Confidence intervals 1. The mean height of he trees at "Festival of Trees" is getting larger each year. The organizers want to make sure the trees do not become top-heavy, tip-over, and become dangerous to spectators. The festival claims the mean height is at most 6.3 feet which is within safety limits for heights. The Board of Directors tests a random sample of 36 trees. The mean height is x= 6.6 feet with a standard deviation of s= 0.5 feet. a. Create a significance test at the a=0.02 to determine if the trees will meet the festival's mean safety limit. 2 Page 4 - + o 8:47 PM O 4/10/2021 LJ()Grades for David Mercado Belt X _ Classes X Classwork for 4 DeLeonPardini, X * Course Hero X + X G classroom.google.com/u/1/w/MjUOODU3MDQ1Mjc1/t/all 4 DeLeonPardini, AP S b. Construct the corresponding confidence interval to determine how much the actual mean height might vary from 6.3 feet based on the same information from above. 2 o 8:47 PM O 4/10/2021 LJ:23 Grades lW Dal-\"d MEVGdD BE X H Classes X a Classwork furri DELeonPardir X H Course Hero X l + 7 X 6 ) G i classroomgooglecom/u/i,v'wajUUODU3MDQiMjciftfall 1k * o 000 2. A raearcher conducted a study to investigate whether local car dealers tend to d1arge women more than men for their cars. The mean purchase pride of cars bought by men is $25,341.25. Using information from the county tax collector's records, the researcher randomly selected 8 women from among all women who had purchased a car. The amount paid by ead1 of the H women for their car purchases is listed in the table below. Subject 1 2 3 4 5 a 7 3 $20,100 $17,400 $22,300 $32,500 $17,710 $21,500 $29,500 $46,300 a. Do the data provide convincing evidence that, on average, women pay more than men in the county for their cars? ()Grades for David Mercado Belt X _ Classes X Classwork for 4 DeLeonPardini, X * Course Hero X + X G classroom.google.com/u/1/w/MjUOODU3MDQ1Mjc1/t/all 4 DeLeonPardini,AP S b. Complete the appropriate confidence interval for this problem. 2 Page 4 14 - + o 8:47 PM O 4/10/2021 LJ