Will mark me plz a jeweler needed two diamonds of exactly the same weight to make a ring. the first stone she selected weighed 0.642 carat, the second weighed 0.599 carat, and the third weighed 0.625 carat. by how much did the heaviest stone outweigh the lightest? 0.043 carat 0.042 carat 0.041 carat 0.04 carat

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?