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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

Compound inequalities. , i’m being timed

Drag each value to the correct location on the equation. not all values will be used. a company sells lab equipment. the daily revenue and costs are modeled by the functions below where x is the number of units sold. determine the function representing the total daily profit, p(x), after selling x units. 0.32 -0.32 -52 52 340 200