Asample containing years to maturity and yield for corporate bonds are contained in the data given below. years to maturity yield years to maturity yield 19.50 7.758 24.00 2.778 23.00 8.145 20.00 4.132 11.75 7.542 21.00 3.882 16.50 2.469 5.75 2.242 28.50 2.596 17.00 3.235 2.50 2.835 9.25 1.786 21.75 6.441 16.50 2.935 8.75 4.372 23.25 3.524 27.00 3.164 4.50 3.425 16.00 8.038 18.00 4.886 15.50 0.942 29.00 6.483 5.00 1.567 26.50 6.342 13.25 8.032 22.75 1.611 25.25 2.257 1.00 6.918 5.50 2.974 15.00 3.834 18.25 7.869 2.25 8.055 14.75 7.786 22.00 1.071 27.25 3.311 15.50 1.655 17.25 2.654 21.00 1.515 23.00 5.609 19.00 2.179 a. what is the sample mean years to maturity for corporate bonds and what is the sample standard deviation? mean (to 4 decimals) standard deviation (to 4 decimals) b. develop a confidence interval for the population mean years to maturity. round the answer to four decimal places. , years c. what is the sample mean yield on corporate bonds and what is the sample standard deviation? mean (to 4 decimals) standard deviation (to 4 decimals) d. develop a confidence interval for the population mean yield on corporate bonds. round the answer to four decimal places. , percent check my work

65°

step-by-step explanation:

the total measure of a triangle is 180 degrees. 62 + 53 is 115.

180 - 115 = 65

the results from a pre-test for students for the year 2000 and the year 2010 are illustrated in the box plot. what do these results tell us about how students performed on the 29 question pre-test for the two years?

if we compare only the lowest and highest scores between the two years, we might conclude that the students in 2010 did better than the students in 2010. this conclusion seems to follow since the lowest score of 8 in 2010 is greater in value than the lowest score of 6 in 2000. also, the highest score of 28 in 2010 is greater in value than the highest score of 27 in 2000.

but the box portion of the illustration gives us more detailed information. the middle bar in each box shows us that the median score of 20 in 2000 is greater in value than the median score of 17 in 2010. further, we note that the box and whiskers divide the illustration into four pieces. each of these four pieces represents the same portion of students. so, the upper half of the students in 2000 scored in the same score range as the upper one-fourth of the students in 2010, see the illustration at a score of 20.

by considering the upper one-fourth, upper half, and upper three-fourths instead of just the lowest and highest scores, we would conclude that the students as a whole did much better in 2000 than in 2010. we would conclude that as a whole the students in 2010 are less prepared than the students in 2000.

in this section, we discuss box-and-whisker plots and the five key values used in constructing a box-and-whisker plot. the key values are called a five-number summary, which consists of the minimum, first quartile, median, third quartile, and maximum.

step-by-step explanation:

y + 11 = (1/4)(x + 16)

step-by-step explanation: