Mathematics, 25.05.2021 02:00, kathlynskare06
20 POINTS
A high school senior wonders if being blindfolded affects a person’s typing accuracy. He randomly selects 17 students from his large school. For one of the treatments, the senior reads a statement to each student and asks them to type it while wearing a blindfold. For the other treatment, the student is asked to type a similar statement without wearing a blindfold. The order of treatments is determined with the flip of a coin. The mean difference (blindfolded – not blindfolded) in the number of correct words is 6.12 words with a standard deviation of 5.98 words.
Assuming the conditions for inference have been met, is there evidence of a difference, on average, in typing accuracy while wearing a blindfold and not wearing a blindfold? Use a significance level of α = 0.05.
A) Because the P-value is less than α, there is evidence of a difference, on average, in typing accuracy while wearing a blindfold and not wearing a blindfold.
B) Because the P-value is greater than α, there is evidence of a difference, on average, in typing accuracy while wearing a blindfold and not wearing a blindfold.
C) Because the P-value is less than α, there is not sufficient evidence of a difference, on average, in typing accuracy while wearing a blindfold and not wearing a blindfold.
D) Because the P-value is greater than α, there is not sufficient evidence of a difference, on average, in typing accuracy while wearing a blindfold and not wearing a blindfold.
Answers: 3
Mathematics, 21.06.2019 15:00, Broov
Asap the total attendance for all of a baseball league in 2012 was about 7.5×107 fans, while the attendance for the tornadoes in 2012 was about 1.5×106 fans. about how many times more was the attendance for the entire baseball league than the attendance for just the tornadoes? 50 times more 10 times more 2 times more 5 times more
Answers: 2
20 POINTS
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