Answer:
we can conclude that there is significant evidence to support the stance that mean pH value in water differs from 8.5
Step-by-step explanation:
H0 : μ = 8.5
H1 : μ < 8.5
Test statistic :
(xbar - μ) / s/sqrt(n)
(8.24 - 8.5) ÷ (0.16 ÷ √12)
-0.26 ÷ 0.0461880
Test statistic = - 5.63
The Pvalue can be obtained from the test statistic value using a Pvalue calculator :
df = 12 - 1 = 11
Pvalue = 0.000077
Using an α value of 0.05 ; we can conclude that
Pvalue < α ; We reject H0
Hence, we can conclude that there is significant evidence to support the stance that mean pH value in water differs from 8.5
<h2>
Answer:</h2>
<u>The term that describe a fraction that has a polynomial in its numerator and its denominator is </u><u>Rational Expression</u>
<h2>Explanation:</h2>
The term that describes a fraction ,it has a variable or variable expression in its numerator, its denominator, or both is called a rational fraction. It is occur when both the numerator and the denominator are polynomials.In the below example xy are polynomials.
For example a rational expression given by 25x²y²/ 6xy can be simplified into (25 × x × x× y× y)/ 6× x× y
So
=25xy /6
Answer:
For question 1 it's 12/3
For question 2 it's D. 6
For question 3 it's A. 12
For question 4 it's C. 64
For question 5 it's D. 1 and 17/18
For question 6 it's B. 16
Step-by-step explanation:
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184 / 23 = 8
so it would be 8
