Mathematics, 11.03.2020 04:35 balletbella0531
A professor believes the students in a statistics class this term are more creative than most other students attending the university. A previous study found that students at the university had a mean score of 35 on a standard creativity test, and the current class has an average score of 40 on this scale with an estimated population standard deviation of 7. The standard deviation of the distribution of means is 1.63. What is the t score?
A. (40 β 35) / 7 = 0.71
B. (40 β 35) / 1.63 = 3.07
C. (40 β 35) / 7Β² = 5 / 49 = 0.10
D. (40 β 35) / 1.63Β² = 5 / 2.66 = 1.88
Answers: 3
Mathematics, 21.06.2019 13:40
On any given day, the number of users, u, that access a certain website can be represented by the inequality 1125-4530 which of the following represents the range of users that access the website each day? u> 95 or u < 155 95> u> 155 u< 95 or > 155 95
Answers: 2
Mathematics, 21.06.2019 18:30
At the olympic games, many events have several rounds of competition. one of these events is the men's 100-meter backstroke. the upper dot plot shows the times (in seconds) of the top 8 finishers in the final round of the 2012 olympics. the lower dot plot shows the times of the same 8 swimmers, but in the semifinal round. which pieces of information can be gathered from these dot plots? (remember that lower swim times are faster.) choose all answers that apply: a: the swimmers had faster times on average in the final round. b: the times in the final round vary noticeably more than the times in the semifinal round. c: none of the above.
Answers: 2
Mathematics, 21.06.2019 21:10
Plot a point at the y-intercept of the following function on the provided graph. 3y=-5x+7 20 points
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A professor believes the students in a statistics class this term are more creative than most other...
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