-3(k-8)-(k+5)=23 please explain how to do this
1 answer:
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The answer is 3 3/4
Here's how I got my answer:
Step 1: Split the numbers apart. Which leaves us with
Step 2: Find the greatest common factor between the two(25). Then divide it by 75 and 100. Which leaves us with (once simplified).
Step 3: Combine the whole number component with the fraction, which leaves us with our answer, 4 3/4
The question requires that we have to state the hypothesis:
null hypothesis;H0: u1 < u2, the alternate hypothesis;H1: u1 > u2. The one tail test is what is to be used.
<h3>A. How to state the hypothesis</h3>H0: u1 < u2
H1: u1 > u2
The one tail test statistic is what is to be used here
<h3>B. standard error </h3>= 1.49
The df = 17 + 15 - 2
= 30
test statistic = 18.9 - 17.4 / 1.49
= 1.007
We have the critical value on excel as T.INV(0.9,30)
= 1.310
E. At 0.1, we can conclude that t-value (1.007) does not lies in the rejection area. We fail to reject the null hypothesis. Hence we conclude that the mean vacation with the unlimited plan is greater.
Read more on statistics here brainly.com/question/7597734
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