The t-ratio is the estimate divided by the standard error. With a large enough sample, t-ratios greater than 1.96 (in absolute value) suggest that your coefficient is statistically significantly different from 0 at the 95% confidence level. A threshold of 1.645 is used for 90% confidence.
The t-ratio is the estimate divided by the standard error. With a large enough sample, t-ratios greater than 1.96 (in absolute value) suggest that your coefficient is statistically significantly different from 0 at the 95% confidence level. A threshold of 1.645 is used for 90% confidence.
<span> A. x²+2 - a polynomial B.(x⁸-2)/(x⁻²+3) rational function C. 7x⁷-2x⁻⁴+3 (It has negative value of exponent, so it cannot be a polynomial.) D.x^x-1 (x is an exponent it cannot be a polynomial)</span>
