2. Consider the division operations below and choose whether the result can be rational,

Mathematics

1 answer:

bearhunter [10]2 years ago

4 0

Answer:

All are rational.

Step-by-step explanation:

=1/3/3/5

=1/3×5/3

=5/9

5/9 is non-terminating and recurring number so it is rational.

4/3√9/5

=4/3*3/5

=4/5

4/5 is a terminating number it is rational.

2*√16/√4

=2*4/2

4 is a natural/whole number it is also rational.

Note:if you need to ask any questions please let me know.

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Vaselesa [24]

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8 0

3 years ago

The accounting department analyzes the variance of the weekly unit costs reported by two production departments. A sample of 16

dusya [7]

Answer:

$F=\frac{s^2_2}{s^2_1}=\frac{5.5}{2.5}=2.2$

Now we can calculate the p value but first we need to calculate the degrees of freedom for the statistic. For the numerator we have $n_2 -1 =16-1=15$ and for the denominator we have $n_1 -1 =16-1=15$ and the F statistic have 15 degrees of freedom for the numerator and 15 for the denominator. And the P value is given by:

$p_v =2*P(F_{15,15}>2.2)=0.138$

For this case the p value is highert than the significance level so we haev enough evidence to FAIL to reject the null hypothesis and we can conclude that the true deviations are not significantly different

Step-by-step explanation:

Information given

$n_1 = 16$ represent the sampe size 1