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: 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.) Carry out an appropriate
hypothesis test, filling in the information requested.

A. The value of the standardized test statistic:

B. The p-value is

D. Your decision for the hypothesis test:

A. Do Not Reject ?0

H

0

.

B. Reject ?1

H

1

.

C. Do Not Reject ?1

H

1

.

D. Reject ?0

H

0

.

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: 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...

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...

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...

(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...

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...

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...

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...

Test the given claim. Use the P-value method or the traditional
method as indicated. Identify the null hypothesis, alternative
hypothesis, test statistic, critical value(s) or P-value,
conclusion about the null hypothesis, and final conclusion that
addresses the original claim.
7) 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...

1) Independent random samples, each containing 90 observations,
were selected from two populations. The samples from populations 1
and 2 produced 21 and 14 successes, respectively.
Test H0:(p1?p2)=0 against
Ha:(p1?p2)?0. Use
?=0.07.
(a) The test statistic is
(b) The P-value is
(c) The final conclusion is
A. We can reject the null hypothesis that
(p1?p2)=0 and accept that
(p1?p2)?0.
B. There is not sufficient evidence to reject the
null hypothesis that (p1?p2)=0.
2)Two random samples are taken, one from among...

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