The number of plumbing repaie jobs performed by angurs, Ask an Expert

Statistics

The number of plumbing repaie jobs performed by Angur's Plumbing Service in each of the last four years is listed below:

Time Period Demand

4 years ago 45

3 years ago 54

2 years ago 59

Last year 65

a.) What is this year's forecast using weighted moving average with weights equal to .6, .3, and .1?

b.) What is this year's forecast using the linear trend (regression) approach?

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M91006754

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

A researcher reports that the size of an effect in

A researcher reports that the size of an effect in Population A is d = 0.10 and the effect size in Population B is d = 0.34. Which population is associated with greater power to detect an effect? A) Population A B) Popul ...

In an effort to check the quality of their cellnbspphones a

In an effort to check the quality of their cell? phones, a manufacturing manager decides to take a random sample of 10 cell phones from? yesterday's production? run, which produced cell phones with serial numbers ranging ...

Consider the study of two insect populations at two

Consider the study of two insect populations at two experimental stations. At station A, the egg hatch rate (computed from a set of 100 eggs at a time) is known to follow approximately a normal distribution with mean 62% ...

Question probability and nonprobability are the two general

Question Probability and nonprobability are the two general categories of sampling. Probability sampling uses random selection, whereas nonprobability sampling does not. For example, if you wanted to study the effects of ...

The probability of someone ordering the daily special is 52

The probability of someone ordering the daily special is 52%. If the restaurant expected 96 people for lunch, how many would you expect to order the daily special?

Jamie dimon changed the business model for jpmorgan chase

Jamie Dimon changed the business model for JPMorgan Chase in 2008. In the process, the bank gave enormous trading authority to one individual. What are the ERM strengths and weaknesses of this strategy?

In a survey ofnbsp3153nbspadultsnbsp1407nbspsay they have

In a survey of 3153 adults, 1407 say they have started paying bills online in the last year. Construct a? 99% confidence interval for the population proportion. Interpret the results. A? 99% confidence interval for the p ...

If you are constructing a confidence interval for a

If you are constructing a confidence interval for a population mean, for the same confidence level, the width of the confidence interval will __________ as the sample size increases. Decrease Increase Stay the same Depen ...

You roll a pair of dice one timelet event a be the dice

You roll a pair of dice ONE time. Let Event A be the dice show an odd sum. Let Event B be exactly one of the dice (not both of them) shows a one. b. What is the symbol for the complement of B? ______ c. Describe the comp ...

A population has a mean mu79 and anbspstandard deviation

A population has a mean μ=79 and a standard deviation σ=24. Find the mean and standard deviation of a sampling distribution of sample means with sample size n=248 μx= ?Simplify your? answer. σx= rounded to three decimal ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert