Here are the scores of 13 students on a history test. 60, 65, 67, 67, 75, 76, 79, 80, 83, 85, 87, 88, 91
Notice that the scores are ordered from least to greatest.
Give the five-number summary and the interquartile range for the data set.
Five-number summary
Minimum:
60
Lower quartile:
67
Median:
79
Upper quartile:
85
Maximum:
91
Interquartile range: 0

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

Two florida panthers were weighed. one weighs 6x+21 pounds and the two together weigh 14x+11 pounds how much does he other panther weigh alone

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables