This equation shows how the total cost of visiting the history museum as a member is related to the number of visits.
C= V + 6
The variable v represents the number of visits to the history museum, and the variable c
represents the total cost of those visits. For a member of the history museum, what is the
total cost of 4 visits?

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