Mathematics, 10.07.2019 20:30 saraaaaaaaa20
What are the intercepts of the equation 7x β 2y β 14z = 56? (8, 0, 0), (0, 28, 0), (0, 0, 4) (8, 0, 0), (0, β28, 0), (0, 0, β4) (8, 0, 0), (0, 28, 0), (0, 0, β4) (8, 0, 0), (0, β28, 0), (0, 0, 4)
Answers: 1
Mathematics, 21.06.2019 18:20
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? Ο2stat=what is the p-value? p-value=is this value significant atΞ±=0.025?
Answers: 2
Mathematics, 21.06.2019 18:40
2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?
Answers: 1
Mathematics, 21.06.2019 19:30
Asurvey of 45 teens found that they spent an average of 25.6 hours per week in front of a screen (television, computer, tablet, phone, based on the surveyβs sample mean, which value could be the population mean? 2.3 hours 27.4 hours 75.3 hours 41.5 hours
Answers: 1
What are the intercepts of the equation 7x β 2y β 14z = 56? (8, 0, 0), (0, 28, 0), (0, 0, 4) (8, 0,...
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