Mathematics, 12.04.2021 23:50, billydavey555
Twelve runners are asked to run a 10-kilometer race on each of two consecutive weeks. In one of the races the runners wear one brand of shoe and in the other a second brand. The brand they wear in each race is determined at random. All runners are timed and are asked to run their best in each race. The results in minutes are given below. Assume normality of the populations. Is there sufficient evidence that the mean time using brand 1 is different than the mean times using brand 2?
Runner Brand 1 Brand 2
1 31.23 32.02
2 29.33 28.98
3 30.50 30.63
4 32.20 32.67
5 33.08 32.95
6 31.52 31.53
7 30.68 30.83
8 31.05 31.10
9 33.00 33.12
10 29.67 29.50
11 30.55 30.57
12 32.12 32.30
Answers: 3
Mathematics, 21.06.2019 19:00, issaaamiaaa15
You got a job selling magazines door-to-door. you are paid $100 per day plus $1.50 for each magazine you sell. which recursive formula models this situation?
Answers: 1
Mathematics, 21.06.2019 23:40, tanviknawale
The function f(x)= -(x+5)(x+1) is down. what is the range of the function?
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Twelve runners are asked to run a 10-kilometer race on each of two consecutive weeks. In one of the...
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