Mathematics, 05.05.2020 05:33 mawawakaiii
One indicator of physical fitness is a resting pulse rate. Ten men volunteered to test an exercise device advertised on television by using it three times a week for 20 minutes and ten other similar men did not exercise. Their resting pulse rates (beats per minute) were measured after 6 weeks. Results are summarized below. Researchers want to know if there is evidence that exercise can reduce resting pulse rates.
exercise group mean = 82.40
non-exercise group mean = 85.20
standard error for the difference in the two sample means = 6
1. With the difference in population means defined as "exercise mean minus non-exercise mean" which of the following presents the correct test statistic?
O (82.4 - 85.2) / 6
O (85.2 - 82.4) / 6
O (82.4 - 85.2) / √ (6)
O (85.2 - 82.4) / √ (6)
Answers: 2
Mathematics, 21.06.2019 14:10
Apackage of bacon holds 15 strips of bacon. the pancake house uses 17 packages of bacon in the morning and 21 packages in the afternoon. how many more strips were used in the afternoon than the morning?
Answers: 1
Mathematics, 21.06.2019 16:00
Which segments are congruent? o jn and ln o jn and nm o in and nk onk and nm
Answers: 3
Mathematics, 21.06.2019 19:00
Find the equation of the line with slope =8 and passing through (6,53) write your equation in the form y=mx+b
Answers: 1
One indicator of physical fitness is a resting pulse rate. Ten men volunteered to test an exercise d...
Chemistry, 12.04.2021 22:20
Mathematics, 12.04.2021 22:20
English, 12.04.2021 22:20
Social Studies, 12.04.2021 22:20
History, 12.04.2021 22:20
English, 12.04.2021 22:20
English, 12.04.2021 22:20
Biology, 12.04.2021 22:20