Mathematics, 26.08.2019 17:10 jonzyjones3114
Random samples of resting heart rates are taken from two groups. population 1 exercises regularly, and population 2 does not. the data from these two samples is given below: population 1: 70, 63, 63, 66, 73, 70, 63 population 2: 72, 78, 69, 74, 74, 74, 72, 78 is there evidence, at an α=0.01 level of significance, to conclude that there those who exercise regularly have lower resting heart rates? (use the conservative method for computing degrees of freedom). carry out an appropriate hypothesis test, filling in the information requested. a. the value of the standardized test statistic: -2.17 b. the p-value is .04 c. your decision for the hypothesis test: a. reject h1. b. reject h0. c. do not reject h0. d. do not reject h1.
Answers: 2
Mathematics, 22.06.2019 02:30
Why can't my rank go i have 1723 points, but my rank is only at ambitious, which is only 250 points! like, (p.s. i know this isn't related to math, but i just don't know why it's doing this and i would really appreciate if someone could tell me whats going on with this)
Answers: 1
Mathematics, 22.06.2019 03:20
Which situation could best be represented by this linear equation? 24x + 38y = 520 > if x represents the number of bracelets and y represents the number of rings, there were 24 more bracelets sold than rings. the total sales were $520. if x represents the number of bracelets and y represents the number of rings, there were 38 more bracelets sold than rings. the total sales were $520. if x represents the number of bracelets sold at $24 each and y represents the number of rings sold at $38 each, the total sales were $520 if x represents the number of bracelets and y represents the number of rings, there were 520 bracelets and rings sold. bracelets were $24, and rings were $38. e
Answers: 1
Mathematics, 22.06.2019 03:20
Arepresentative from plan 1 wants to use the graph below to sell health plans for his company. how might the graph be redrawn to emphasize the difference between the cost per doctor visit for each of the three plans? the scale on the y-axis could be changed to 0–100. the scale on the y-axis could be changed to 25–40. the interval of the y-axis could be changed to count by 5s. the interval of the y-axis could be changed to count by 20s.
Answers: 2
Random samples of resting heart rates are taken from two groups. population 1 exercises regularly, a...
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