Suppose you want to test the claim that 4, #2. Two samples are randomly selected from each population. The sample statistics are given below. At a level of significance of a =0.05, when should you reject Ho? two tail Zoss =1,96 n = 50, n2 = 60, x, = 17, x2 = 15, o, = 1.5, o2 = 1.9 -> O A. Reject H, if the standardized test statistic is less than - 2.33 or greater than 2.33. 196 1.96 O B. Reject H, if the standardized test statistic is less than -2.575 or greater than 2.575. O C. Reject Ho if the standardized test statistic is less than - 1.645 or greater than 1.645. D. Reject Ho if the standardized test statistic is less than - 1.96 or greater than 1.96.

b) Graph the solution in the case that b = 40 fish/year. Describe the solution. c) Graph the solution in the case that b = 60 fish/year. Describe the solution.

Evaluate (-0.5)(-7-1-7³-(-6)1) Select one: O a. -172 O b. -1221.5 O c. 172 O d. 1221.5 The graph of y--3x²+2x+2 is A C 9.

Gold is alloyed with different metals to make it hard enough to be used in jewelry. The amount of gold present in a gold ally is measured in 24ths called karats. 24-karat gold is 100% gold. Similarly, 12-karat gold is 50% gold. 
How many ounces of 4-karat gold should be added to 8 ounces of 8-karat gold to make an amount of 6-karat gold? Graph equations on coordinate axes with labels and scales. *