Suppose that a committee is studying whether or not there is waste of time in our judicial system. It is interested in the mean amount of time individuals waste at the courthouse waiting to be called for service. The committee randomly surveyed 81 people. The sample mean was 8 hours with a sample standard deviation of 4 hours.
Define the Random Variables
and
, in words.
Which distribution should you use for this problem? Explain your choice.
Construct a 95% confidence interval for the population mean time wasted.
State the confidence interval.
Sketch the graph.
Calculate the error bound.
Explain in a complete sentence what the confidence interval means.
Suppose that an accounting firm does a study to determine the time needed to complete one person’s tax forms. It randomly surveys 100 people. The sample mean is 23.6 hours. There is a known standard deviation of 7.0 hours. The population distribution is assumed to be normal.
Define the Random Variables
and
, in words.
Which distribution should you use for this problem? Explain your choice.
Construct a 90% confidence interval for the population mean time to complete the tax forms.
State the confidence interval.
Sketch the graph.
Calculate the error bound.
If the firm wished to increase its level of confidence and keep the error bound the same by taking another survey, what changes should it make?
If the firm did another survey, kept the error bound the same, and only surveyed 49 people, what would happen to the level of confidence? Why?
Suppose that the firm decided that it needed to be at least 96% confident of the population mean length of time to within 1 hour. How would the number of people the firm surveys change? Why?
A sample of 16 small bags of the same brand of candies was selected. Assume that the population distribution of bag weights is normal. The weight of each bag was then recorded. The mean weight was 2 ounces with a standard deviation of 0.12 ounces. The population standard deviation is known to be 0.1 ounce.
Define the Random Variable
, in words.
Define the Random Variable
, in words.
Which distribution should you use for this problem? Explain your choice.
Construct a 90% confidence interval for the population mean weight of the candies.
State the confidence interval.
Sketch the graph.
Calculate the error bound.
Construct a 98% confidence interval for the population mean weight of the candies.
State the confidence interval.
Sketch the graph.
Calculate the error bound.
In complete sentences, explain why the confidence interval in (f) is larger than the confidence interval in (e).
In complete sentences, give an interpretation of what the interval in (f) means.
Communication is effective because it allows individuals to share ideas, thoughts, and information with others.
effective communication can lead to improved outcomes in various settings, including personal relationships, business environments, and educational settings. By communicating effectively, individuals can negotiate effectively, solve problems collaboratively, and work towards common goals.
it starts up serve and return practice/assessments.it helps find voice talking therapy also assessments through relaxed conversation.
miss
Every time someone flushes a toilet in the apartment building, the person begins to jumb back automatically after hearing the flush, before the water temperature changes. Identify the types of learning, if it is classical conditioning identify the NS, UCS, CS and CR. If it is operant conditioning, identify the type of consequence positive reinforcement, negative reinforcement or punishment
nature is an hereditary factor while nurture is an environmental factor which constitute an individual personality. so if an individual's parent has a deviant behavior and was also brought up in an deviant environment, observation of the behavior and the inborn trait we make the individual deviant.
Samuel
I am taking this course because I am hoping that I could somehow learn more about my chosen field of interest and due to the fact that being a PsyD really ignites my passion as an individual the more I hope to learn about developing and literally explore the complexity of my critical thinking skills