Math 533 Course Project Part B Essay

|A random group of apartments was selected from a city to analyze the number of bedrooms they have. Is there evidence to reject |

Decision Rule: The calculated test statistic of -3.024 does fall in the rejection region of z<-1.645, therefore I would reject the null and say there is sufficient evidence to indicate mu<50.

Ryerson Automobile Insurance Company wants to estimate the mean time it takes for workers who are employed in downtown Toronto to get to work. A sample of 10 workers reveals the following number of minutes traveled.

Rather what I want you do is to highlight what you see for three individual variables (no more than 1 graph for each, one or two measures of central tendency and variability (as appropriate), and two or three sentences of interpretation). For the 10 pairings, identify and report only on three of the pairings, again using graphical and numerical summary (as appropriate), with interpretations. Please note that at least one of your pairings must include Location and at least one of your pairings must not include Location.

This proposal will discuss all key aspects needed to ensure a seamless transition and implementation of an automated sales force CRM, or Customer Relationship

The information is collected on percent of population that is black and percent of population that is Spanish speaking. The family income is divided by seven classes and the percent of the families in each of the classes, median yearly family income, median home value, median rent per month, percentage of the population with no cars, percentage of

Problem 2.4: Consider the sample from a bank database shown in Figure 2.14; it was selected randomly from a larger database to be the training set. Personal Loan indicates whether a solicitation for a personal loan was accepted and is the response variable. A campaign is planned for a similar solicitation in the future, and the bank is looking for a model that will identify likely responders. Examine the data carefully and indicate what your next step would be.

9. If there were 32 subjects in the experimental group and 36 subjects in the control group, why is the income data only reported for 30 subjects in the experimental group and 34 subjects in the control group?

A. The simulated function given in the Excel spreadsheet “Hamptonshire Express: Problem_#1” allows the user to find the optimal quantity of newspapers to be stocked at the newly formed Hamptonshire Express Daily Newspaper. Anna Sheen estimated the daily demand of newspapers to be on a normal standard distribution; stating that daily demand will have a mean of 500 newspapers per day with a standard deviation of 100 newspapers per day. Using the function provided, the optimal stocking quantity, which maximizes expected profit, is determined to be approximately 584 newspapers. If 584 newspapers were to be ordered, Hamptonshire Express will net an

The customers in this case study have complained that the bottling company provides less than the advertised sixteen ounces of product. They need to determine if there is enough evidence to conclude the soda bottles do not contain sixteen ounces. The sample size of sodas is 30 and has a mean of 14.9. The standard deviation is found to be 0.55. With these calculations and a confidence level of 95%, the confidence interval would be 0.2. There is a 95% certainty that the true population mean falls within the range of 14.7 to 15.1.

2. The data set represents the income levels of the members of a golf club. Find the probability that a randomly selected member earns at least $100,000.

30. The manager of the local National Video Store sells videocassette recorders at discount prices. If the store does not have a video recorder in stock when a customer wants to buy one, it will lose the sale because the customer will purchase a recorder from one of the many local competitors. The problem is that the cost of renting warehouse space to keep enough recorders in inventory to meet all demand is excessively high. The manager has determined that if 90% of customer demand for recorders can be met, then the combined cost of lost sales and inventory will be minimized. The manager has estimated that monthly demand for recorders is normally distributed, with a mean of 180 recorders and a standard deviation of 60. Determine the number of recorders the manager should order each month to meet 90% of customer demand.

e.) Find a 95% confidence interval for the proportion who stay with D&Y for at least 3 years but this time with starting salaries above the median.

From that we can identify the typical costumer by calculate the mean of these two classes

A market research firm needs to find 100 people who regularly purchase orange juice to complete a survey on a new line of frozen orange juice. After talking to a random sample of 500 people, 75 orange juice buyers have been found. Based upon this information, how many additional people in a random sample do they need to interview to reach an expected total of 100 people who regularly purchase orange juice? TASK 2 – UNISOAP CASE As a Client Service Executive at Nielsen, you are assigned to work on Sudsy Soap Company’s client team.