Question
In: Statistics and Probability
Although studies continue to show smoking leads to significant health problems, 30% of adults in a...
Although studies continue to show smoking leads to significant health problems, 30% of adults in a country smoke. Consider a group of 250 adults, and use the normal approximation of the binomial distribution to answer the questions below.
(a)What is the expected number of adults who smoke?
75 adults
(b)What is the probability that fewer than 65 smoke? Use the normal approximation of the binomial distribution to answer this question. (Round your answer to four decimal places.)
(c)What is the probability that from 80 to 85 smoke? Use the normal approximation of the binomial distribution to answer this question. (Round your answer to four decimal places.)
(d) What is the probability that 100 or more smoke? Use the normal approximation of the binomial distribution to answer this question. (Round your answer to four decimal places.)
This question has been answered but the answers are incorrect
Solutions
Expert Solution
The probability that fewer than 65 smoke is
The probability that from 80 to 85 smoke is
The probability that 100 or more smoke is
orchestra answered 1 year agoRelated Solutions
Although studies continue to show smoking leads to significant health problems, 20% of adults in the...
Although studies continue to show smoking leads to significant
health problems, 20% of adults in the United States smoke. Consider
a group of 300 adults.
If required, round your answers to four decimal places. Use
Table 1 in Appendix B. If your answer is zero, enter "0".
c. What is the probability that from 35 to 70
smoke? Used continuity correction factor.
A binomial probability distribution has p = .20 and
n = 100.
If required, round your answers to...
Loss of hearing can be a significant problem for older adults. Although hearing aids can correct...
Loss of hearing can be a significant problem for older adults.
Although hearing aids can correct the physical problem, people who
have lived a hearing impairment often develop poor communication
strategies and social skills. To address this problem, a home
education program has been developed to help people who are
receiving hearing aids for the first time. The program emphasizes
communication skills. To evaluate the program, overall life
satisfaction was measured before treatment, again at the end of the
training...
Slowing Down Global Warming Reputable scientific studies continue to show that the Earth is warming at...
Slowing Down Global Warming Reputable scientific studies
continue to show that the Earth is warming at an unsustainable rate
because of a rise in the release of CO2 and methane gases. Reflect
on your daily life. How may the rise of these gases influence how
you live your life? What steps can you take to cut down the amount
of these gases released into the atmosphere?
Show all five steps: The harmful effects of smoking tobacco have been illustrated in medical studies...
Show all five steps: The harmful effects of
smoking tobacco have been illustrated in medical studies yet many
individuals still choose to smoke. The Centers for Disease Control
estimate that approximately 13% of students aged 18 – 24 smoke
tobacco. Using only the students in the “22 or younger” age group
test to see if the proportion of students smoking tobacco is lower
in Maryland. Let α= 0.01.
Data from StatCrunch: 1,129 students aged 22 or younger surveyed
51 "yes",...
Health problems of family members The father has a chronic cough. Smoking (10 per day) The...
Health problems of family members
The father has a chronic cough. Smoking (10 per day)
The mother's menstrual bleeding is irregular. She's afraid of
getting pregnant again. He does not use a family planning
method.
10-year-old child (girl) has very low school success, has no
appetite and is poor (weight and height percentile 5%).
8-year-old boy has asthma. The family takes the child for
control every 6 months (weight and height percentile 25%).
7-year-old boy healthy (weight and height percentile...
Studies show that massage therapy has a variety of health benefits and it is not too...
Studies show that massage therapy has a variety of health
benefits and it is not too expensive. A sample of 11 typical
one-hour massage therapy sessions showed an average charge of 59.
The population standard deviation for a one-hour session is 5. What
assumptions about the population should we be willing to make if a
margin of error is desired? Using 95% confidence, what is the
margin of error ( 2 decimals)? Using 99% confidence, what is the
margin of...
Studies show that massage therapy has a variety of health benefits and it is not too...
Studies show that massage therapy has a variety of health
benefits and it is not too expensive. A sample of 10 typical
one-hour massage therapy sessions showed an average charge of $59.
The population standard deviation for a one-hour session is σ =
$5.50. Develop a 95% confidence interval for the mean cost of
massage therapy sessions.
Studies show that massage therapy has a variety of health benefits and it is not too...
Studies show that massage therapy has a variety of health
benefits and it is not too expensive. A sample of 11 typical
one-hour massage therapy sessions showed an average charge of $58.
The population standard deviation for a one-hour session is σ =
$5.1
a. What assumptions about the population should
we be willing to make if a margin of error is desired?
- (The population has uniform distribution / The population is
at least approximately normal is required /...
QUESTION 1 Considering the fact that many of the health problems of older adults are chronic...
QUESTION
1
Considering the fact that many of the health problems of older
adults are chronic rather than acute, which of the following is a
concern regarding the medical system?
Medicare does not have special provisions for chronic
illnesses.
Costs of prescription drugs are still not subsidized for the
elderly.
The medical system is still based on a “cure” rather than a
“care” model.
Home-visits are not emphasized over hospital stays.
Question 2
Essay Question: Please answer in complete sentences....
Studies show that massage therapy has a variety of health benefits. A sample of 48 typical...
Studies show that massage therapy has a variety of health
benefits. A sample of 48 typical one-hour massage therapy sessions
showed an average charge of $72. The population standard deviation
for a one-hour session is $5.46. Estimate with 94% confidence the
average charge of all one-hour massage therapy sessions. (Round to
2 decimal places.) Complete the following sentence to provide an
interpretation of the confidence interval in the context of the
problem: We are 94% confident that the charge of...
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- Define a char variable. Read a char value from the keyboard into the variable. Print the...
- If you wanted to store a birthday within code, what class would you use in Java?...
- Explain what is meant by the Theme Park internal and external business environment and use the...
- Description Write a program that prints out your name, the course ID of this class, what...
- A project has an initial cost of $65,475, expected net cash inflows of $12,000 per year...
- Make a program that lets the user enter a positive or negative integer as many times...
- using java, parse a text file to be able to list the word(s) with the highest...
ADVERTISEMENT