Question

In a large hospital, a nursing director selected a random sample of 30 registered nurses and found that the mean of their ages was 30.2. The population standard deviation for the registered nurse ages is 5.6. She selected a random sample of 40 nursing assistants and found the mean of their ages was 31.7. The population standard deviation of the ages for the assistants is 4.3. At the 1% level of significance, test the claim that the mean age of registered nurses is different than the mean age of nursing assistants.

Answer #1

A random sample of 18 registered nurses in a large hospital
showed that they worked on average 44.8 hours per week. The
standard deviation of the sample was 2.4. Estimate the mean of the
population with 95% confidence. Assume the variable is normally
distributed. Round intermediate answers to at least three decimal
places. Round your final answers to one decimal place.

A random sample of 16 registered nurses in a large hospital
showed that they worked on average 44.3 hours per week. The
standard deviation of the sample was 2.3. Estimate the mean of the
population with 99% confidence. Assume the variable is normally
distributed. Round intermediate answers to at least three decimal
places. Round your final answers to one decimal place.

A random sample of 19 registered nurses in a large hospital
showed that they worked on average 44.6 hours per week. The
standard deviation of the sample was 2.1. Estimate the mean of the
population with 90%confidence. Assume the variable is normally
distributed. Round intermediate answers to at least three decimal
places. Round your final answers to one decimal place.

Question 2: In the Payne County medical center,
a surgical director selected a random sample of 37 nurses and found
that the mean of their ages was 39.40. The sample standard
deviation for the ages is 6.42. The director also selected a random
sample of 32 physical therapists and found the mean of their ages
was 36.77.
The sample standard deviation of ages for the physical
therapists is 4.48.
A. [3] Give one reason why this data should not be...

According to the Bureau of Labor Statistics, the mean salary for
registered nurses in Kentucky was $55,599. The distribution of
salaries is assumed to be normally distributed with a standard
deviation of $5,987. Someone would like to determine if registered
nurses in Ohio have a greater average pay. To investigate this
claim, a sample of 269 registered nurses is selected from the Ohio
Board of Nursing, and each is asked their annual salary. The mean
salary for this sample of...

Question 4 The registered nurses at Bossier General Hospital are
required to take an annual EKG test. The average score on the EKG
test is 89. The director of nursing examined 16 SICU registered
nurses’ scores. They had an average score of 94 with a standard
deviation of 8. At a level of significance of 0.05, what should you
conclude?
SICU nurses’ scores are not significantly different from the
group.
SICU nurses’ scores are significantly higher than the group.
SICU...

According to the Bureau of Labor Statistics, the mean salary for
registered nurses in Kentucky was $58,605. The distribution of
salaries is assumed to be normally distributed with a standard
deviation of $5,688. Someone would like to determine if registered
nurses in Ohio have a greater average pay. To investigate this
claim, a sample of 297 registered nurses is selected from the Ohio
Board of Nursing, and each is asked their annual salary. The mean
salary for this sample of...

1. A researcher claims that the mean age of women in California
at the time of a first marriage is higher than 26.5 years.
Surveying a simple random sample of 210 newlywed women in
California, the researcher found a mean age of 27.0 years. Assuming
that the population standard deviation is 2.3 years and using a 95%
level of confidence, determine if there is sufficient evidence to
support the researcher’s claim.
2. Nurses in a large teaching hospital have complained...

According to the Bureau of Labor Statistics, the mean salary for
registered nurses in Kentucky was $56,907. The distribution of
salaries is assumed to be normally distributed with a standard
deviation of $5,507. Someone would like to determine if registered
nurses in Ohio have a greater average pay. To investigate this
claim, a sample of 240 registered nurses is selected from the Ohio
Board of Nursing, and each is asked their annual salary. The mean
salary for this sample of...

Motivating Nurses at a Hospital You have been hired by the
director of a large suburban hospital to help resolve problems of
poor morale that have been plaguing the nursing staff.
Unfortunately, the nurses don’t find their jobs particularly
interesting. As a result, turnover and absenteeism have been high,
and patient care is at an all-time low. The problem is apparent to
everyone; both doctors and patients have been complaining. After
interviewing the nurses, you found that they believed that...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 14 minutes ago

asked 15 minutes ago

asked 22 minutes ago

asked 29 minutes ago

asked 31 minutes ago

asked 42 minutes ago

asked 43 minutes ago

asked 51 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago