Hello from MrBillDoesMath!
Answer:
(4/5)d + 6/5
Discussion:
2/5(3d+3) =
2(2d+3)/5 =
(4d + 6)/ 5 =
(4/5)d + 6/5
Thank you,
MrB
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sadly i haven’t learned this so i can’t help you with the answers themselves but a graphing utility you could use is a graphing calculator or a graphing calculator online i know one called desmos.com just not sure if it has the intersect feature so i recommend graphing calculator
Answer:
The test statistic for this test is 3.82.
Step-by-step explanation:
The null hypothesis is:
The alternate hypotesis is:
Our test statistic is:
In which X is the sample mean,
is the value tested at the null hypothesis,
is the standard deviation of the population and n is the size of the sample.
In this question:

So
The test statistic for this test is 3.82.