Question
In: Statistics and Probability
Claim: The mean pulse rate (in beats per minute) of adult males is equal to 69...
Claim: The mean pulse rate (in beats per minute) of adult males is equal to 69 bpm. For a random sample of 141 adult males, the mean pulse rate is 68.5 bpm and the standard deviation is 10.6 bpm. Find the value of the test statistic.
Claim: Fewer than 90% of adults have a cell phone. In a reputable poll of 1190 adults, 81% said that they have a cell phone. Find the value of the test statistic.
Solutions
Expert Solution
1) Ho : 
= 69 Vs H1 :
69
Test statistic t = (xbar -
)/(s/√n)
t = (68.5 -69)/(10.6/√141)
t = -0.56
2) here p= 0.90 , n = 1190 , p^ = 0.81
Test statistic Z = (p^ - p)/sqrt[p*q/n]
Z = (0.81-0.90)/sqrt[0.90*0.10/1190]
Z = -10.35
orchestra answered 2 years agoRelated Solutions
Claim: The mean pulse rate (in beats per minute) of adult males is equal to 69.4...
Claim: The mean pulse rate (in beats per minute) of adult
males is equal to 69.4 bpm. For a random sample of 170adult males,
the mean pulse rate is 70.6 bpm and the standard deviation is 11.4
bpm. Complete parts (a) and (b) below.
claim: the mean pulse rate (in beats per minute )of adult males us equal to 69.5...
claim: the mean pulse rate (in beats per minute )of
adult males us equal to 69.5 bpm. for a random sample if 128 adult
males, the mean pulse rate us 70.6 bpm and the standard deviation
is 10.8 bpm. complete parts (a) and (b) below. a.Express the
original claim in symbolic form.
The mean pulse rate of the entire population of adult men is 70 beats per minute....
The mean pulse rate of the entire population of adult
men is 70 beats per minute. A sample of 10 adult male patients is
given a new drug, and after several minutes, their mean pulse rate
is measured at 75 beats per minute with a standard deviation of 8
bpm. Do I have sufficient evidence to support my claim that this
drug is effective in raising the heart beat of male
patients?
a. State the null and alternative hypotheses using...
Resting Pulse Rate The mean resting pulse rate for men is 72 beats per minute. A...
Resting Pulse Rate The mean resting pulse rate for men is 72
beats per minute. A simple random sample of men who regularly work
out at Planet Fitness 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. Follow the
5-step example I posted (and the setup in question...
Listed below are pulse rates (beats per minute) from samples of adult males and females. Does...
Listed below are pulse rates (beats per minute) from samples
of adult males and females. Does there appear to be a difference?
Find the coefficient of variation for each of the two samples;
then compare the variation. Male 90 71 62 70 69 50 64 54 84 70 60
60 100 57 64 Female 64 81 80 70 72 85 87 84 86 89 93 72 87 78 77
The coefficient of variation for the male pulse rates is nothing%....
Use the accompanying data set on the pulse rates (in beats per minute) of males to...
Use the accompanying data set on the pulse rates (in beats per
minute) of males to complete parts (a) and (b) below.
80
82
83
62
93
83
74
77
50
84
59
72
53
90
59
43
64
64
64
79
51
62
55
68
74
82
52
80
80
72
76
59
Find the mean and standard deviation, and verify that the pulse
rates have a distribution that is roughly normal.
Explain why the pulse rates have a...
It is generally accepted that the mean heart rate (beats per minute; bpm) of an adult...
It is generally accepted that the mean heart rate (beats per
minute; bpm) of an adult human is between 65 bpm and 75 bpm, with a
single average value of 72 bpm. In this case study you will test
the hypothesis that the average heart rate of adults is 72 bpm (μ =
72 bpm) for all adults and then separately by gender. The
distribution of heart rates is approximately normal.
1.Complete the hypothesis test for all adults(Males and Females)...
Females have a mean pulse rate of 74 beats per minute (bpm) and a standard deviation...
Females have a mean pulse rate of 74 beats per minute (bpm) and
a standard deviation of 12.5
bpm. If fifty females are randomly selected,
what is the probability that their mean pulse rate
is greater than 79 bpm?
the mean resting pulse rate of men is 76 beats per minute. a simple random sample...
the mean resting pulse rate of men is 76 beats per
minute. a simple random sample of men who regularly work out at
Mitch's gym is obtained and their resting pulse rates 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 76
beats per minute. assume that the standard deviation of the resting
pulse rates of all men who workout at Mitch's gym...
PLEASE SHOW THE DIAGRAM 8. The mean pulse rate for adults is 72 beats per minute...
PLEASE SHOW THE DIAGRAM
8. The mean pulse rate for adults is 72 beats per minute
(www.healthepic.com) and let’s suppose that the standard deviation
is 10. Find:
a. The probability that a randomly chosen adult has a pulse rate
over 78 assuming that the rates are normally distributed.
The probability that a random sample of 19 adults will have a
mean score over 78.
PLEASE DON'T FORGET THE DIAGRAM
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