Determinant of coefficient matrix: 2(15)−3(12)+1(4K−5)=30−36+4K−5=4K−11.
For unique solution, determinant must be nonzero: K=11/4.
So K∈R−{11/4}.
The assumption opposite of what is made in the null hypothesis is known as the _________ hypothesis.
Held on 22 May 2023 · Verified 13 Jul 2026.
Margin of error
Alternate
Level of significance
Confidence interval
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