A study of the career paths of hotel general managers sent questionnaires to an SRS of...
A study of the career paths of hotel general managers sent questionnaires to an SRS of 160 hotels belonging to major U.S. hotel chains . There were 81 responses. The average time these 81 general managers had spent with their current company was 11.78 years. (Take it as known that the standard deviation of time with the company for all general managers is 3.2 years)
a. Calculate a 99.5% confidence interval for the mean numbers of years that general managers of major-chain hotels have spent with their current company
b. Suppose that we do not know that 
= 3.2, but the standard deviation of the sample is calculated to be
3.6. Calculate a 99% confidence interval for the mean number of
years that managers have spent with their current company under the
new conditions.
Homework Answers
rate it please.
Add Answer to:
A study of the career paths of hotel general managers sent
questionnaires to an SRS of...
A study of the career paths of hotel general managers sent questionnaires to an SRS of...
A study of the career paths of hotel general managers sent questionnaires to an SRS of 300 hotels belonging to major U.S. hotel chains. There were 183 responses. The average time these 183 general managers had spent with their current company was 10.35 years. (Take it as known that the standard deviation of time with the company for all general managers is 1.4 years.) (a) Find the margin of error for an 80% confidence interval to estimate the mean time...
A study of the career paths of hotel general managers sent questionnaires to a random sample...
A study of the career paths of hotel general managers sent questionnaires to a random sample of 97 hotels belonging to major U.S. hotel chains. The average time these 97 general managers had spent with their current company was 12.75 years. (Take it as known that the standard deviation of time with the company for all general managers is 1.8 years.) (a) Find the bound for an 80% confidence interval to estimate the mean time a general manager had spent...
(1 point) A study of the career paths of hotel general managers sent questionnaires to an...
(1 point) A study of the career paths of hotel general managers sent questionnaires to an SRS of 210 hotels belonging to major U.S. hotel chains. There were 96 responses. The average time these 96 general managers had spent with their current company was 12.98 years. Take it as known that the standard deviation of time with the company for all general managers is 4.3 years. Give your answers to at least 2 decimal places, and use at least 3...
10. 0/10 points Previous Answers YMSStat2 10..013. My A study of the career paths of otel...
10. 0/10 points Previous Answers YMSStat2 10..013. My A study of the career paths of otel general managers sent questionnaires to an SRS of 160 hotels belonging to major U.S. hotel chains. There were 109 responses. The average time these 109 general managers had spent with their current company was 11.5 years. How large a sample of hotel managers would be needed to estimate the mean within 1.08 year with 80% confidence? (Take it as known that the standard deviation...
Entered Answer Preview Result Message -2009.11, 2009.11 -2009.11, 2009.11 incorrect Your answer isn't a number (it...
Entered Answer Preview Result Message -2009.11, 2009.11 -2009.11, 2009.11 incorrect Your answer isn't a number (it looks like a list of numbers) 41686.9 41686.9 correct 45705.1 45705.1 correct At least one of the answers above is NOT correct. (1 point) Starting salaries of 95 college graduates who have taken a statistics course have a mean of $43,696. Suppose the distribution of this population is normal and has a standard deviation of $10,819. Using a 93% confidence level, find both of...
Successful hotel managers must have personality characteristics often thought of as feminine (such as "compassionate") as...
Successful hotel managers must have personality characteristics often thought of as feminine (such as "compassionate") as well as those often thought of as masculine (such as "forceful"). The Bem Sex-Role Inventory (BSRI) is a personality test that gives separate ratings for female and male stereotypes, both on a scale of 1 to 7. A sample of 148 male general managers of three-star and four-star hotels had mean BSRI masculinity score x = 5.28. The mean score for the general male...
IX 3 In a certain management study, 15 randomly selected managers were found to spend a...
IX 3 In a certain management study, 15 randomly selected managers were found to spend a mean of 2.40 hours each day on paperwork with a standard deviation of 1.30 hours. a. Construct a 90% Confidence Interval for the mean time spent on paperwork by all managers. b. State the meaning of the interval in the context of the problem. X Use the given data to construct a confidence interval at the requested level: x = 125, n = 317,...
In a certain management study, 15 randomly selected managers were found to spend a mean of...
In a certain management study, 15 randomly selected managers
were
found to spend a mean of 2.40 hours each day on paperwork with a
standard deviation of 1.30 hours.
Construct a 90% Confidence Interval for the mean time spent on
paperwork by all managers.
State the meaning of the interval in the context of the
problem.
Use the given data to construct a confidence interval at the
requested level:
x = 125, n = 317, confidence level 95% (Hint: Refer...
What would you recommend regarding the issue solution and give the best solution ? Case study...
What would you recommend regarding the issue solution and give the best solution ? Case study to answer all these question is as follow : When Robert Foster arrived at Home Improvement Inc. in December 2000, the deck seemed stacked against the new CEO. He had no retailing experience and, in fact, had spent an entire career in industrial, not consumer, business. His previous job was running Standard Electric’s power systems division, whose multimillion-dollar generating plants for industry and governments...
(1 point) A study of the career paths of hotel general managers sent questionnaires to an SRS of 210 hotels belonging to major U.S. hotel chains. There were 96 responses. The average time these 96 general managers had spent with their current company was 12.98 years. Take it as known that the standard deviation of time with the company for all general managers is 4.3 years. Give your answers to at least 2 decimal places, and use at least 3...
10. 0/10 points Previous Answers YMSStat2 10..013. My A study of the career paths of otel general managers sent questionnaires to an SRS of 160 hotels belonging to major U.S. hotel chains. There were 109 responses. The average time these 109 general managers had spent with their current company was 11.5 years. How large a sample of hotel managers would be needed to estimate the mean within 1.08 year with 80% confidence? (Take it as known that the standard deviation...
Entered Answer Preview Result Message -2009.11, 2009.11 -2009.11, 2009.11 incorrect Your answer isn't a number (it looks like a list of numbers) 41686.9 41686.9 correct 45705.1 45705.1 correct At least one of the answers above is NOT correct. (1 point) Starting salaries of 95 college graduates who have taken a statistics course have a mean of $43,696. Suppose the distribution of this population is normal and has a standard deviation of $10,819. Using a 93% confidence level, find both of...
IX 3 In a certain management study, 15 randomly selected managers were found to spend a mean of 2.40 hours each day on paperwork with a standard deviation of 1.30 hours. a. Construct a 90% Confidence Interval for the mean time spent on paperwork by all managers. b. State the meaning of the interval in the context of the problem. X Use the given data to construct a confidence interval at the requested level: x = 125, n = 317,...
In a certain management study, 15 randomly selected managers
were
found to spend a mean of 2.40 hours each day on paperwork with a
standard deviation of 1.30 hours.
Construct a 90% Confidence Interval for the mean time spent on
paperwork by all managers.
State the meaning of the interval in the context of the
problem.
Use the given data to construct a confidence interval at the
requested level:
x = 125, n = 317, confidence level 95% (Hint: Refer...
Most questions answered within 3 hours.
-
Cranium, Inc., purchases term papers from an overseas supplier
under a continuous review system. The average...
asked 2 hours ago -
1- What is the freezing point of pure water (in degrees
Celsius)?
2-
he molar mass...
asked 3 hours ago -
Determine the direction of the force that will act on the charge
in each of the...
asked 3 hours ago -
You purchase your daily coffee at the Chemist’s Coffeehouse and
have a choice of two cups:...
asked 6 hours ago -
Which of the following pairs of chemicals could be used to make
a buffer solution?
A.)...
asked 5 hours ago -
Problem 16-51 Sales
Activity Variance (LO 16-3)Odessa, Inc., reports the following
information concerning operations for the...
asked 6 hours ago -
Pictured on the right are thee point charges Q1 = 18.4 μC, Q2 =
-30.6 μC,...
asked 6 hours ago -
A graduate student is conducting research in psychology and
needs to obtain the IQ scores of...
asked 7 hours ago -
R2.84: There are 2 defective products in a production lot of 10.
An inspector randomly selected...
asked 8 hours ago -
Consider the following equilibrium system: COCl2(g) CO(g) +
Cl2(g) A 10.00 L evacuated flask is filled...
asked 8 hours ago -
1) What are the two distinct steps that one needs to perform
when developing a data...
asked 9 hours ago -
2) Write a C++ program that uses a class called “Degree” to
obtain the trigonometric
values...
asked 10 hours ago