One t-shirt is sold for every 5 people who attend a concert. what is one way to write the unit rate in words? 1 t-shirt for every 5 people 1 person per 5 t-shirts 5 t-shirts for each person 5 people per t-shirt

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