An srs of 400 high school seniors gained an average of ¯ x = 24.23 points in their second attempt at the sat mathematics exam. assume that the change in score has a normal distribution with standard deviation σ = 48.78 . we want to estimate the mean change in score μ in the population of all high school seniors.(a)give a 95% confidence interval for μ based on this sample.(b)based on your confidence interval in part (a), how certain are you that the mean change in score μ in the population of all high school seniors is greater than 0? (hint: does the interval in part (a) include

c

step-by-step explanation:

it isn't d, because the interquartile range is from 27-57. and the interquartile range is basically half the data, it's pretty obvious.

it isn't b, because like i said earlier, the interquartile range is from 27-57. 57-27 is 30. the real range has to be longer

not a either. although it looks like it, 3/4 of the data is not greater than 27. but if c is wrong than this should be correct

the correct answer is c, because 13 is the point in which the plot starts

answer: 2 answers

step-by-step explanation: the first one means to spread the product throughout the marketplace such that a large number of people can buy it.  

the second means the process of making a product or service available for the consumer or business user that needs it.

mark this brainliest and i will be glad to .

fd

step-by-step explanation:

i think the length is 12 and the width is 17