Question

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: 67, 66, 68, 72, 64, 69, 72

Population 2: 71, 71, 76, 69, 72, 70, 74, 77

pop1 <- c( 67, 66, 68, 72, 64, 69, 72 )

pop2 <- c(71, 71, 76, 69, 72, 70, 74, 77)

Is there evidence, at an α=0.055α=0.055 level of significance, to conclude that there those who exercise regularly have lower resting heart rates? (Assume that the population variances are equal.) Carry out an appropriate hypothesis test, filling in the information requested.

A. The value of the standardized test statistic:

C. The p-value is

D. Your decision for the hypothesis test:

**A.** Reject H1H1.

**B.** Do Not Reject H0H0.

**C.** Reject H0H0.

**D.** Do Not Reject H1H1.

Answer #1

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: 65, 64, 69, 73, 67, 64, 70
Population 2: 74, 78, 75, 69, 69, 73, 79, 74
Is there evidence, at an α=0.05α=0.05 level of significance, to
conclude that there those who exercise regularly have lower resting
heart rates? (Assume that the population variances are equal.)
Carry out an...

(1 point)
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: 72, 62, 64, 64, 65, 72, 68
Population 2: 72, 74, 69, 71, 69, 72, 68, 68
Is there evidence, at an α=0.065α=0.065 level of significance,
to conclude that there those who exercise regularly have lower
resting heart rates? (Assume that the population variances are
equal.) Carry...

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: 59, 69, 63, 59, 69, 68, 65
Population 2: 73, 69, 71, 76, 75, 68, 71, 69
Is there evidence, at an ?=0.05
α
=
0.05
level of significance, to conclude that there those who
exercise regularly have lower resting heart rates? (Assume that the
population variances are equal.)...

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: 71, 67, 61, 62, 67, 70, 68
Population 2: 71, 68, 71, 78, 76, 73, 71, 68
Is there evidence, at an α=0.075, level of significance, to
conclude that there those who exercise regularly have lower resting
heart rates? (Assume that the population variances are equal.)
Carry out an...

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: 69,69,70,65,69,70,72
Population 2: 74,71,70,69,68,69,75,68
Is there evidence, at an α=0.01 level of significance, to
conclude that there those who exercise regularly have lower resting
heart rates? (Assume that the population variances are equal.)
Carry out an appropriate hypothesis test, filling in the
information requested.
(a) The value of the standardized test...

Kuya heard that oldest children tend to be more miserable about
life than their youngest siblings (not taking into consideration
the number of siblings in between). Kuya gathered data from 33
families and measured their scores on a misery scale. The lower the
score, the more miserable the person tends to be.
MISERY SCALE
SCORES
Oldest
Youngest
62
62
80
67
70
62
56
66
86
71
79
63
68
64
67
64
62
73
74
71
68
70
69...

The mean resting pulse rate for men is 72 beats per minute. A
simple random sample of men who regularly work out at Mitch's Gym
is obtained and their resting pulse rates (in beats per minute) are
listed below. Use a 0.05 significance level to test the claim that
these sample pulse rates come from a population with a mean less
than 72 beats per minute. Assume that the standard deviation of the
resting pulse rates of all men who...

Zachary thinks that taking pets for a walk decreases
people’s heart rate over time. He has his participants take a
baseline heart rate and then has them walk their dogs for three
days. He then has the same participants take their resting heart
rate.
Participant
Baseline
Post Walk
1
75
71
2
66
66
3
57
55
4
64
66
5
67
60
6
77
74
7
70
73
8
71
70
9
76
72
10
80
77
11
76...

Given two dependent random samples with the following
results:
Population 1: 60 74 66 73 68 69 81 67
Population 2: 69 70 75 68 71 71 72 69
Can it be concluded, from this data, that there is a significant
difference between the two population means? Let d=(Population 1
entry)−(Population 2 entry). Use a significance level of α=0.02 for
the test. Assume that both populations are normally
distributed.
Step 1 of 5: State the null and alternative hypotheses for...

Question 9-15 are based on the random
sample below which is obtained to test the following hypothesis
about the population mean. Test the hypothesis that the mean is
less than 80.
80
100
81
93
80
57
98
90
71
56
58
78
59
55
55
77
72
78
56
94
98
59
93
86
89
62
60
66
59
71
96
97
94
69
64
77
87
77
64
90
90
95
98
99
56
69
72
81
95...

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