1 of 11 ID: MST.CPD.UD.03.0010
William is a quality inspector for an appliance manufacturer and is currently testing an oven. The oven starts off at room temperature, which is 70 degrees Celsius. William turns the oven to 167 degrees. The temperature in the oven increases from 70 degrees to 167 degrees over the following 10 minutes at a constant rate, so that the temperature follows a uniform distribution over the interval between 70 degrees and 167 degrees. At a randomly chosen time during that 10 minutes, William records the temperature of the oven. a)Calculate the probability that the temperature is less than 126 degrees. Give your answer as a decimal to 2 decimal places. Probability =

b)Calculate the probability that the temperature is somewhere between 93 degrees and 108 degrees. Give your answer as a decimal to 2 decimal places. Probability =
c)Calculate the probability that the temperature is 117 degrees. Give your answer as a decimal to 2 decimal places. Probability =
[3 points]- 2 of 11 ID: MST.CPD.UD.01.0010
Select which of the following situations could be modeled using a continuous uniform distribution: | Yes| No|
a)| A factory worker tests the lifetime of a set of standard batteries. She finds that the batteries will tend to last around 10 hours, although they may last anywhere between 5 and 15 hours. Around 10 hours is most likely, and the probability that a battery will last around 5 hours or around 15 hours is quite small. | | | b)| An office worker turns up to work between 8:00 am (because this is when the building opens) and 9:00 am (because he has to be in by then). The time that he arrives is determined by several factors, and the likelihood of the time of his arrival is constant over all equal time periods between 8:00 am and 9:00 am. | | | c)| A standard 6-sided die is thrown, and the number of dots on the face that turns up is recorded. Each face has an equal chance of turning up. | | | [4 points]- 3 of 11...

...WILMINGTON UNIVERSITY
CLASS INFORMATION & SCHEDULE
FACULTY MEMBER: TERM:
COURSE TITLE:
COURSE NUMBER: MBA 6100
OFFICE HOURS/METHOD OF CONTACT:
I. METHODOLOGY:
A. Teaching Methods: Distance learning course
Announcements and instructor guidance; assigned readings; homework problems, chapter information, textbook power point files, and case study.
This course requires stable and regular access to the internet as well as students’ ability to work independently and...

...Statistics 5371 Final Exam Review Fall 2012.
1. Suppose a researcher wants to design a new study with a power of 0.8 and a significance of 0.05 to test whether the caffeine content for a brand of coffee is really 100mg. A previous study gave a mean caffeine level for this brand of 110 mg and a standard deviation of 7 mg. Use PROC POWER to determine how many cups of coffee need testing.
2. A company did a study to estimate the effect of different promotional strategies on the market...

...Tutorial Questions for Exploratory Data Analysis – Summary Statistics & Graphs
1. Customers of a particular bank rated the service provided by the bank on a scale of one to ten, correct to one decimal point. The bank categorised their customers as either (1) Private Account holders or (2) Business Account holders. The information below summarises customer attitudes towards the quality of service provided by the bank. Use the output to answer the questions below.
a) Briefly...

...CGE13101 Understanding Society Through Statistical Reasoning
Tutorial 3
1. A wholesale appliance distributing firm wished to study its accounts receivable for two successive months. Two independent samples of 50 accounts were selected for each of the two months. The results have been summarized below.
Frequency distribution for accounts receivable
Amount
March Frequency
April Frequency
$0 - under $2,000
$2,000 - under $4,000
$4,000 - under $6,000...

...2.41
a.
Number of Internet Searches
Percentages
A few search results 23
First page of search results 39
First two pages 19
First three pages 9
More than first three pages 10
b.
Pie charts and bar graphs are two ways of...

...Definition of Statistics, Scope and importance of Statistics:Statistics in business and management: Frequency distribution: Parts of table:
Definition of Statistics:
1. Statistics can be defined as the collection presentation and interpretation of numerical data.- Croxton and Crowed.
2. Statistics are numerical statement of facts in any department of enquiry placed interrelation to each other.- Bouly.
3. Statistics are measurement, enumerations or estimates of natural or social...

...1.1 For the following situation, indicate whether the statistical
application is primarily descriptive or inferential.
“The manager of Ann’s Fabric Shop has collected data for 10 years
on the number of each type of dress fabric that has been sold at the
store. She is interested in making a presentation that will illustrate
these data effectively.”
Suggested Answer:
This application is primarily descriptive in nature. The owner
wishes to develop a presentation. He will most likely use...