6. If the sampled population is nonnormal, the t-test of the population mean y is still valid, provided that the condition is not extreme.
a. True
b. False

The given dot plot represents the average daily temperatures, in degrees fahrenheit, recorded in a town during the first 15 days of september. if the dot plot is converted to a box plot, the first quartile would be drawn at __ , and the third quartile would be drawn at link to the chart is here