Part IV 1) The table shows the heights (in feet) of the waves at a beach and the numbers of surfers at
the beach.
3
6
5
1
4
Wave Height
Number of
Surfers
24
56
35
61
15
a) Plot the data from the table on the graph.
b) Write the equation of the line of best fit.
c) How many surfers might be at the beach if the waves
were 2 feet high?

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