Simulate an AR(2) model with n = 48, φ1 = 1.5, and φ2 = −0.75. (a) Fit the correctly specified AR(2) model and look at a time series plot of the residuals. Does the plot support the AR(2) specification? (b)Display a normal quantile-quantile plot of the standardized residuals. Does the plot support the AR(2) specification? (c) Display the sample ACF of the residuals. Does the plot support the AR(2) specification? (d)Calculate the Ljung-Box statistic summing to K = 12. Does this statistic support the AR(2) specification?

step-by-step explanation:

5×5×5+2(8)÷2(2)+3(3)

15+16÷4+9

31÷13

do 31÷13 and u will get ur answer

justin bieber ml.

d. 8

step-by-step explanation:

the given radical expression is:

we can rewrite this as:

we express as square numbers to get;

the exponents will now cancel out to give.

the correct answer is d

the number of possible outcomes that do not show a 1 on the first spinner and show the number 4 on the second spinner is 2.

spinner 1 spinner 2

1                     1

1                     2

1                     3

1                     4

2                   1

2                   2

2                   3

2                   4   = not 1, and 4

3                   1

3                   2

3                   3

3                   4 = not 1, and 4

only 2 outcomes have passed the given condition.

step-by-step explanation: