Question
In: Statistics and Probability
The medical reports from the track team in university x showed that, over the last few...
The medical reports from the track team in university x showed that, over the last few years, its first-year athletes have had a resting heart rate of μ= 53 beats per minute, with σ= 10. What is the probability that this year the sample of freshman (n=25) have a mean heart rate of 57 or lower (M<=57)?
a. 2.28%
b. 34.5%
c. 97.7%
d. 65.6%
Solutions
Expert Solution
Solution :
Given that,
mean = 
= 53
standard deviation = 
= 10
n = 25
= 53
= /
n = 10/
25=2
P(M 
57) = P[(M -
) /
< (57-53) /2 ]
= P(z <2 )
Using z table
= 0.9772
=97.7%
orchestra answered 1 year agoRelated Solutions
Kathleen is a 1.68 m, 59 kg, 20-year-old university student. Over the last few years she...
Kathleen is a 1.68 m, 59 kg, 20-year-old university student.
Over the last few years she has gained, then lost, five to seven
kilograms several times. Recently, she has been trying hard to keep
her weight down. Like many university students, Kathleen goes out
every weekend and tends to overindulge. During the week she lives
the life of a serious student, eating very little and getting seven
to eight hours of sleep every night. By Friday, she is ready to...
Over the last few months, the Bank of Ghana (BoG) has cracked the whip at the...
Over the last few months, the Bank of Ghana (BoG) has cracked
the whip at the banking industry in a bid to restore sanity in the
industry. In August 2017, the UT and Capital Banks were liquidated
for failing to meet the BoG’s minimum capital ratio. The operations
of UniBank, Royal Bank, Beige Bank, Sovereign Bank, and
Construction Bank ended. In their place the BoG announced a new
bank called the Consolidated Bank, as part of measures to ensure
the...
QUESTION Over the last few months, the Bank of Ghana ( has cracked the whip at...
QUESTION
Over the last few months, the Bank of Ghana ( has cracked the whip
at the banking industry in a bid to restore sanity in the industry.
In August 2017, the UT and Capital Banks were liquidated for
failing to meet the bank of Ghana’s minimum capital ratio. The
operations of UniBank, Royal Bank, Beige Bank, Sovereign Bank, and
Construction Bank ended. In their place the bank of Ghana announced
a new bank called the Consolidated Bank, as part...
Over the last few months, the Bank of Ghana (BoG) has cracked the whip at the...
Over the last few months, the Bank of Ghana (BoG) has cracked
the whip at the banking industry in a bid to restore sanity in the
industry. In August 2017, the UT and Capital Banks were liquidated
for failing to meet the BoG’s minimum capital ratio. The operations
of UniBank, Royal Bank, Beige Bank, Sovereign Bank, and
Construction Bank ended. In their place the BoG announced a new
bank called the Consolidated Bank, as part of measures to ensure
the...
Over the last few months, the Bank of Ghana (BoG) has cracked the whip at the...
Over the last few months, the Bank of Ghana (BoG) has
cracked the whip at the banking industry in a bid to
restore sanity in the industry. In August 2017, the UT and Capital
Banks were liquidated for failing to meet
the BoG’s minimum capital ratio. The operations of UniBank, Royal
Bank, Beige Bank, Sovereign Bank, and
Construction Bank ended. In their place the BoG announced a new
bank called the Consolidated Bank, as part
of measures to ensure the...
in the last few decades, the auto industry has shifted from one in which a few,...
in the last few decades, the auto industry has shifted from one
in which a few, large companies primarily manufactured in their
domestic markets and sold in their domestic markets, to one in
which a few large companies serve the world market, manufacturing
around the globe to capture competitive advantages wherever they
can.
3-a) Why do companies like Toyota and Nissan have large
operations in the U.S. market? Why don’t American companies have a
large presence in Japan?
3-b) Why...
Over the last few decades, the income sources for banks have changed. Outline the changes and...
Over the last few decades, the income sources for banks have
changed. Outline the changes and discuss why non-interest income
has become so important to banks?
Over the last few decades, the income sources for banks have changed. Outline the changes and...
Over the last few decades, the income sources for banks have
changed. Outline the changes and discuss why non-interest income
has become so important to banks?
A random sample of 40 students taken from a university showed that their mean GPA is...
A random sample of 40 students taken from a university showed
that their mean GPA is 2.94 and the standard deviation of their
GPAs is .30. Construct a 99% confidence interval for the mean GPA
of all students at this university
Data on demand over the last few years are available as follows: Time Period Demand 7...
Data on demand over the last few years are available as follows:
Time Period
Demand
7 years ago
7
6 years ago
28
5years ago
21
4 years ago
42
3 years ago
35
2 years ago
56
Last year
49
a. What is this year's forecast using trend-adjusted (double) smoothing with alpha=.2 and beta=.1, if the forecast for the last year was 56, the forecast for two years ago was 46, and the trend estimate for last year's forecast...
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- Follow up question to the recommendations made to Jerry , how do I get to $44.96?...
- Communication as a Reminder of Non-Separateness The first Asiacentric proposition is that communication is a process...
- Contribute Wiki on the topic: Role of information technology to communicate effectively in modern business.
- Last month Empire Company had a $40,850 profit on sales of $301,000. Fixed costs are $88,580...
- "The Myth of Sisyphus" Please respond to the following: Explain what Camus means by stating that...
- Write a program in C++ to find the number of comparisons using binarySearch and the sequential...
- Case Study Read the case then answer the three questions below: Frank became chief financial officer...
ADVERTISEMENT