Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Interpretation of coefficient of determination.

If computing a causal linear regression model of y = a + bX and resultant r2 is very near zero, then one would be able to conclude that

i. y = a + bX is a good forecasting method.
ii. Y = a + bX is not a good forecasting method.
iii. a multiple linear regression model is a good forecasting method for the data.
iv. a multiple linear regression model is not a good forecasting method for the data

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M922915

Have any Question? 


Related Questions in Statistics and Probability

A sequence of zero mean unit variance independent random

A sequence of zero mean unit variance independent random variables,   are input to a filter that produces an output sequence according toC For initialization purposes taken to be zero. (b) Now let the variance of the  Fi ...

Company a manufactures computer applications boards they

Company A manufactures computer applications boards. They are concerned with the mean time before failures (MTBF), which they regularly measure. Denote the sample MTBF as Determine the number of failures that must be mea ...

Letnbspnbspbe the psd function of a wss discrete-time

Let   be the PSD function of a WSS discrete-time process    Recall that one way to obtain this PSD function is to compute   and then take the DFT of the resulting autocorrelation function. Determine how to find the avera ...

Suppose a random variable has some pdf given by fxxfind a

Suppose a random variable has some PDF given by f x (x). Find a function g x such that Y g(X) = is a uniform random variable over the interval (0 ,1) . Next, suppose that X is a uniform random variable. Find a function g ...

Letnbspnbspbe a sequence of iid random variables with mean

Let   be a sequence of IID random variables with mean µ K  and variance   Form the sample mean process (a) Find the mean function  (b) Find the autocorrelation function

The three letters c a and t represent the states of a

The three letters C, A, and T represent the states of a word-generating system. Let the initial state probability vector be (1/3 1/3 1/3) for the three letters, respectively. The transition matrix is given as What is the ...

Since the q-function represents the tail probability of a

Since the Q-function represents the tail probability of a Gaussian random variable, we can use the various bounds on tail probabilities to produce bounds on the Q-function. (a) Use Markov's inequality to produce an upper ...

A pcm waveform has the two states 1 and 0 suppose the

A PCM waveform has the two states +1 and 0. Suppose the transition matrix is The initial value of the waveform is determined by the flip of a coin, with the outcome of a head corresponding to +1 and a tail to 0. (a) What ...

Let x be the number of heads observed in five tosses of a

Let X be the number of heads observed in five tosses of a fair coin. Then, X fair dice are thrown. Let Y be the sum of the numbers showing on the dice. Determine the mean and variance of Y.

Q1 state the complement of each of the following setsa

Q1. State the complement of each of the following sets: (a) Engineers with less than 36 months of full-time employment. (b) Samples of cement blocks with compressive strength less than 6000 kilograms per square centimete ...

  • 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

A cola-dispensing machine is set to dispense 9 ounces of

A cola-dispensing machine is set to dispense 9 ounces of cola per cup, with a standard deviation of 1.0 ounce. The manuf

What is marketingbullwhat is marketing think back to your

What is Marketing? • "What is marketing"? Think back to your impressions before you started this class versus how you

Question -your client david smith runs a small it

QUESTION - Your client, David Smith runs a small IT consulting business specialising in computer software and techno

Inspection of a random sample of 22 aircraft showed that 15

Inspection of a random sample of 22 aircraft showed that 15 needed repairs to fix a wiring problem that might compromise

Effective hrmquestionhow can an effective hrm system help

Effective HRM Question How can an effective HRM system help facilitate the achievement of an organization's strate