Mario has been hired by a popular restaurant chain to develop a new section for its Web site that will promote its new express menu service. The project manager has made it clear that money is not an issue, but time is. The deadline is approaching, and there is a great deal of work needed to complete the site coding and a requested multimedia feature. Mario must also allow plenty of time for the testing phase. Based on these factors, what is Mario's best strategy for obtaining the graphical media he will need for the site?

Given the resulting p-values, would you reject or fail to reject the null hypotheses (assuming a 0.05 significance level)? what does your decision mean in the context of this problem? would you proceed with changing the design of the arrow, or would you keep the original design?

Write a method named addall that could be placed inside the hashintset class. this method accepts another hashintset as a parameter and adds all elements from that set into the current set, if they are not already present. for example, if a set s1 contains [1, 2, 3] and another set s2 contains [1, 7, 3, 9], the call of s1.addall(s2); would change s1 to store [1, 2, 3, 7, 9] in some order. you are allowed to call methods on your set and/or the other set. do not modify the set passed in. this method should run in o(n) time where n is the number of elements in the parameter set passed in.

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