Aspinner has five sections, labeled a, b, c, d, and e. the spinner is spun 84 times, and the results are recorded in the table.
what is the experimental probability of the spinner’s landing on a? round to the nearest percent, if necessary.
outcome a b c d e
number of trials 14 20 18 15 17
a.22%
b.20%
c.17%
d.14%.

Do graduates from uf tend to have a higher income than students at fsu, five years after graduation? a random sample of 100 graduates was taken from both schools. let muf be the population mean salary at uf and let mufsu be the population mean salary at fsu. how should we write the alternative hypothesis?

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle

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?