A proposed null hypothesis states that there is no difference in the water consumption of households in two districts. The sample mean difference is 8.5 liters, and the standard deviation of the distribution of the difference in sample means is 4.5 liters. The null hypothesis must be accepted if we choose the confidence interval.

Plzzz answer both questions and i will give you 100 points

Two cities a and b are 1400km apart and lie on the same n-s line. the latitude of city a is 23 degrees. what is the latitude of city b. the radius of the earth is approximately 6400km.

Which of the following transformations will make coincide with ? a. counter-clockwise rotation 90º about a, followed by a translation 5 units to the right b. translation 5 units to the right, followed by a reflection across the y-axis c. translation 5 units to the right, followed by a reflection across the x-axis d. translation 1 unit up and 5 units to the right, followed by a reflection across the x-axis