Data Analysis and Decision Making

 

 

 

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Task#1: Human Resource Consulting (HRC) surveyed a random sample of 60 construction companies to find
information on the costs os their health care plans. One of the items being tracked is the annual deductible that
employees must pay. The Minnesota Department of Labor reports that historically the mean deductible amount
per employee is $502 with a standard deviation of $100.
1) Compute the standard error of the sample mean for HRC.
2) What is the chance HRC finds a sample mean between $477 and $527?
3) Calculate the likelihood that the sample mean is between $492 and $512.
4) What is the probability that the sample mean is greater than $550?
Task #2:
1) You plan to conduct a survey to find out what proportion of the workforce has two or more jobs. You decide
on the 95% confidence interval and a margin of error of 2%. A pilot survey reveals that 5 of the 50 sampled
hold two or more jobs. How many in the workforce should be interviewed to meet your requirements?
2) As part of the annual review of its accounts, a discount brokerage selected a random sample of 36
customers and reviewed the value of their accounts. The mean was $32,000 with a sample standard deviation
of $8,200. What is a 90% confidence interval for the mean account value of the population of customers?

Sample Solution

Bandura and Rotter, Molly Ringwald Character from Breakfast Club

The job of Bandura and Rotter, Molly Ringwald ‘s breakfast club The fortifying of Clair’s conduct relies to a great extent upon her endorsement from mainstream peer gatherings. She thinks she should be endorsed to be considered “well known” or better at school. Fortifying likewise follows her folks, so she can shop with her family. After she got some materialistic things, it improved her vibe. There is a battle with extreme incentive in this film.

This year was finished by John Hughes Classic ‘s breakfast club secondary school confinement parody dramatization, one of the well known young ladies, incredible competitors, peculiar competitors, otaku, and rebels. Wald, Emilio Estevez, Ally Sheedy, Anthony Michael Hall, and Judd Nelson go through the day at the library. There are numerous alerts about evident reactions on these readings: there isn’t sufficient opportunity to plan, and for this situation where the spell projecting is limited by the individuals around you, your entertainer is better than the age bunch It is a lot more established. Likewise, all watchers are perusing the content. There will unquestionably be a presentation, however it is more similar to a trial than a total piece. This is a chance to tune in to nostalgic works, entertainer who changed shape, lines you know in the new condition and how they sound like there.

The job of Bandura and Rotter, Molly Ringwald ‘s breakfast club The reinforcing of Clair’s conduct relies generally upon her endorsement from well known friend gatherings. She accepts that she should be endorsed to be considered “mainstream” or better at school. Fortifying likewise follows her folks, so she can shop with her family. After she got some materialistic things, it improved her vibe. – In the morning meal club, Allison Reynolds’ job is called bushel. Chief John Hughes concurs that the job of Allison Reynolds adjusts to the generalizations of the container or that Hughes challenges Allison may not adjust to generalize by any means.

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