Question: Question 3. Normal Distribution (12 marks) a) The purchasing department of the RCMP must order uniform hats for new recruits. Past experience tells the Purchasing

$Question 3. \"Normal Distribution\" (12 marks) a) The purchasing department of$

Question 3. \"Normal Distribution\" (12 marks) a) The purchasing department of the RCMP must order uniform hats for new recruits. Past experience tells the Purchasing Manager that the circumferences of ofcers' heads are approximately normally distributed with mean 22.8 inches and standard deviation 1.1 inches. What proportion of ofcers has big heads (i.e., exceeding 24.5 inches in circumference)? (5 points). b) Now suppose that the nal exam scores are normally distributed with a mean of 60 and a standard deviation of 20. The instructor wishes to give 20% A's, 30% B's and the rest C or lower. (i) What nal score should be the cutoff between A and B? (Notice that the percentage of students who get A score is 20%).(5 points). (ii) What nal score should be the cutoff between B and C? (This one's easy!) (2 points)

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

Question 3. "Normal Distribution" (12 marks) a) The purchasing department of the RCMP must order uniform hats for new recruits. Past experience tells the Purchasing Manager that the circumferences of...

1. The purchasing department of the RCMP must order uniform hats for new recruits. Past experience tells the Purchasing Manager that the circumferences of officers' heads are approximately normally...

a) The purchasing department of the RCMP must order uniform hats for new recruits. Past experience tells the Purchasing Manager that the circumferences of officers heads are approximately normally...

Hi I need this question answered. I have the SWAT analysis done so I don't need that. I need Pestle analysis, 5 force analysis or VRIO analysis done and it needs to be on this case study: IKEA's...

Handy Household Products Ltd is a multiproduct company with several manufacturing plants. The Fremantle plantmanufactures and distributes two household cleaning and polishing compounds, standard and...

Hawthorn Leisure Works (HLW) offers tennis courts and other physical fitness facilities to its members. The clubhas 2000 members. Revenue is derived from annual membership fees and hourly court fees....

In the Intro to Purchasing and Supply Chain reading, Page 6, Figure 1-2, there is a comparison of Traditional Purchasing versus the Current Outlook. Provide three reasons why the Current Outlook is...

Business Research MethodologyQuestion Bank 1 1. When the marketing department of an organization attempts to determine the amount of time the managers in this department spend at their computers in...

As a CPA, you have received offers to audit new company (Francesca's Holding Group). You need to understand the previous years' financial statement (F/S), notes to F/S, predecessor opinion, and...

You are the vice-president of a large manufacturer. You work in the head office and main distribution centre, where the main activity is the shipping of inventory to the various stores in the chain....

Chemical energy is released or absorbed from reactions in various forms. The most easily measurable form of energy comes in the form of heat, or enthalpy. The enthalpy of a reaction can be calculated...

When securities are involved in the purchase of an insurance product, who can sign the application? The Insurance Agent The Financial Representative / Financial Advisor The Financial Representative /...

Cepeda Manufacturing Company is considering three new projects, each requiring an equipment investment of $22,000. Each project will last for 3 years and produce the following cash inflows. 1 7,000...