7. A rendom sample of Joo cushomera, who viaited a deportment store,spnt an average of #77 at this store . Assume Hhat 6=#19. The 97% confidence interval for the population mean is! a) 74.56 to 79.44 b) 70.18 to 83-82 as c) 73.89 to 80-1) d) 72.88 to 81-12

Question 12

I want credit for this question, the solution is not clear. The image is incomplete and the answer also.

Part 1: Graph the lines on the grid below 1 y = %3D -1 y = 7" %3D -OF 9- 10 -9 -8 -7 6 -5 89 10 -7 10+ Clear All Draw: Part 2: Select the word that best describes the relationship between the two lines. O parallel O perpendicular O neither to