The following are two sets of class scores (you may consider these scores to be normally distributed). julia received the two scores marked with an asterisk. did she do better or worse on the second test? why?

first test 48 *56 61 60 39 49 5 57 52 51
second test 75 81 63 *74 59 88 77 79 76 69 67

can somebody offer an explanation as to how to formulate my answer for this question?

Given the function f(x) = 3x + 1, evaluate f(a + 1). a. 3a + 1 b. a + 2 c. 3a + 4

Do social recommendations increase ad effectiveness? a study of online video viewers compared viewers who arrived at an advertising video for a particular brand by following a social media recommendation link to viewers who arrived at the same video by web browsing. data were collected on whether the viewer could correctly recall the brand being advertised after seeing the video. the results are given below.correctly recalled the brandarrival 409153browsing20484b. conduct the hypothesis test, using the 0.025 level of significance.what is the value of the test statistic? χ2stat=what is the p-value? p-value=is this value significant atα=0.025?

Find the equation of the line with slope =8 and passing through (6,53) write your equation in the form y=mx+b