Question: Question 4 20 marks Answer this question using the following information: P(0 Question 4 Answer this question using the following information: < z < 1.68)

Question 4 Answer this question using the following information: < z <

Question 4 20 marks Answer this question using the following information: P(0

Question 4 Answer this question using the following information: < z < 1.68) = 0.4535 "(0 < z < 2.12) 0.4830. where Z is thc standard normal random variable, 20 marks (a) (b) (C) A survey of 300 randomly selected customers of Company A found that (3 x R + 195) of them are satisfied with the service provided by the company. (i) Find the best point estimate of the proportion ofcustomers ofCompany A who are satisfied with thc service provided by the company. Correct your answers to 2 decimal places. (4 marks) (ii) Find the 96.6% confidence interval of the true proportion of customers who arc satisfied with the service provided by Company A. Correct your answers to 2 decimal places. (8 marks) The CEO ofa large company wishes to estimate, with 96.6% confidence. the true proportion ofcmployees of the company favouring a proposed flexible work policy. A previous study shows that 75% of the employees interviewed favoured the proposed policy. The CEO wishes to be accurate within (5 + of the true proportion. Find the minimum sample size required. (4 marks) The CEO in (b) has now moved to a new company and proposed the same policy there. There is no time to conduct a preliminary study. Find the minimum sample size required if the CEO wishes to be accurate within (5 + of the true proportion with a confidence of 90.7%. (4 marks)

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 (20 Marks) Answer the questions based on the information supplied. 3.1 REQUIRED Study the information given below and answer each of the following questions INDEPENDENTLY. 3.1.1 How many...

You work in a property management company. You are assigned to develop financial reports for a rental property, Spring Heights, which is a 50-unit apartment building in the city of Melbourne. The...

QUESTION 4 [20 Marks] Answer the two following unrelated question shown below PART A [15 Marks] The following information was obtained from the accounting records and financial statements of Sun &...

QUESTION 3 (20 Marks) Answer the questions based on the information supplied. 3.1 REQUIRED (3) (3) Study the information given below and answer each of the following questions INDEPENDENTLY Suantity...

QUESTION 3` (20 Marks) Answer the questions based on the information supplied. 3.1 REQUIRED Study the information given below and answer each of the following questions INDEPENDENTLY. 3.1.1 How many...

1.1 REQUIRED Use the first-in-first-out (FIFO) method to complete the table provided below for the stated transactions. (4 marks) INFORMATION The following transactions of Max Enterprises took place...

Question 4: (20 marks) Suppose you are promoted to the managerial position because of your particularly impressive performance as a management trainee (MT) (in Question 3). (a) Being a new manager...

Consider an encryption and decryption using Mini-AES as shown in Figure 1. Some detail processes are illustrated in Appendix, respectively NibhleSub ShiftRow MixColumn KeyAddition Plaintext S S...

Expand the following bond-line representations to show all the atoms including carbon and hydrogen. The figures are included in the solution.

Parent Corporation owns 90% of all the stock of SubOne Corporation. SubOne owns 85% of the stock of Sub Two Corporation. Individuals unrelated to either Parent or SubOne own the other 15% of Sub Two....

If a stock is priced at $ 0 . 2 0 , a 5 for 1 roll - up or consolidation should, ceteris paribus, cause the stock price to rise to $ 0 . 8 0

Problem 18-1 (Algo) Repair calls are handled by one repairman at a photocopy shop, Repair time, including travel time, is exponentially distributed, with a mean of 11 hours per call. Requests for...

2. Give an example where information that is emotionally interesting, specific and close in time and space, can be used to capture someones interest.

7. How can an interpreter influence the utterer (sender)?

9. Find a news article in a daily newspaper written by a journalist. How is this news article related to: (a) The writers expertise? (b) The context? (c) The personal characteristics of the writer?...