Sara is playing a game that includes a spinner. The spinner is divided into 4 sections: one red, one blue, one green, and one yellow section. After 25 spins she has landed on red 8 times, blue 4 times, green 7 times, and yellow 6 times. Based on her results, predict how many times Sara will land on yellow if she spins 100 times.

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