User Account

All Pages

Possible relation between the number of showings

Assignment Help Basic Statistics
Reference no: EM13957154

Question 1

During 2002 the number of beds required per day at St Hallam's hospital was normally distributed with a mean of 1800 and a standard deviation of 190.  During the first 50 days of 2003 the average daily requirement for beds was 1830.  A senior hospital manager claims that this gives evidence that the requirements for beds has changed since 2001.  Do you agree?

Question 2

The following data were obtained in an experiment to estimate a possible relation between the number of showings in one week of a TV commercial in typical sales territories and the sales (in thousands of units) in that territory of the advertised article.

Territory

1

2

3

4

5

6

7

8

9

10

Showings

3

1

4

0

2

4

0

3

1

2

Sales

2.6

1.2

3

1

2

3.6

0.5

3.2

1.8

2.5

(i) Show that the data is significantly correlated. 

(ii) Construct a scatter pot of the data.

(iii) Obtain a linear regression model for sales against number of showings per   week.

(iv) What will be the estimated sales if there are 7 showings in a week? And for 20 showings?

Reference no: EM13957154

Questions Cloud

What is the starting point for determining a business : What is the starting point for determining a business's net cash flow from its operating activities under the indirect method? Why is this figure used?
Prediction of california population : In California in 1990 the population was 29, 839, 250. what is the prediction of california's population in the long-run?
Describe best treatment practices for specific issues : Use only scholarly, objective sources for your project. Peer-reviewed articles found in the UMUC Library databases are generally good sources. Web-based information such as Wikipedia and About.com and popular news outlets such as Time or Newsweek ..
Should mahulena repeat the coloring process : Should Mahulena repeat the coloring process or sell the carpet to Practical Home Solutions?
Possible relation between the number of showings : The following data were obtained in an experiment to estimate a possible relation between the number of showings in one week of a TV commercial in typical sales territories and the sales (in thousands of units) in that territory of the advertised ..
Determine the potential energy stored n each spring : Write down the gravitational potential energy of particle P at a general point of motion. Write down the kinetic energy of a particle Pat the same instant
What is the value for the variance of x : The following represents the projection graph for a probability distribution f(x) of a random variable X.
Weighted water content of snow : The data below present the results of a hydrological investiagtion of the snake river watershed. The main purpose of the investigation was to forecast the water yield (y inches) from april to july using the weighted water content of snow (x), esti..
What can an investor learn from looking at the relationship : What can an investor learn from looking at the relationship between operating, financing and investing cash flows from year to year?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Statistics-probability assignment

MATH1550H: Assignment:  Question:  A word is selected at random from the following poem of Persian poet and mathematician Omar Khayyam (1048-1131), translated by English poet Edward Fitzgerald (1808-1883). Find the expected value of the length of th..

  What is the least number

MATH1550H: Assignment:  Question:     what is the least number of applicants that should be interviewed so as to have at least 50% chance of finding one such secretary?

  Determine the value of k

MATH1550H: Assignment:  Question:     Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form

  What is the probability

MATH1550H: Assignment:Questions: (Genetics) What is the probability that at most two of the offspring are aa?

  Binomial distributions

MATH1550H: Assignment:  Questions:  Let’s assume the department of Mathematics of Trent University has 11 faculty members. For i = 0; 1; 2; 3; find pi, the probability that i of them were born on Canada Day using the binomial distributions.

  Caselet on mcdonald’s vs. burger king - waiting time

Caselet on McDonald’s vs. Burger King - Waiting time

  Generate descriptive statistics

Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.

  Sampling variability and standard error

Problems on Sampling Variability and Standard Error and Confidence Intervals

  Estimate the population mean

Estimate the population mean

  Conduct a marketing experiment

Conduct a marketing experiment in which students are to taste one of two different brands of soft drink

  Find out the probability

Find out the probability

  Linear programming models

LINEAR PROGRAMMING MODELS

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd