Answer:
a), y=62 b.) c=1 3/5 or 8/5
Step-by-step explanation:
Okay so these are fairly simple lets start with A
4y=248, all we have to do is divide 4 on both sides
4y/4=y
248/4=62
Pretty Simple
For b just subtract 2/5 from both sides
(c+2/5)-2/5=c
2-2/5=1 3/5 or 8/5
The answer is a no other option
Answer: c. The plot of the data was linear
Step-by-step explanation:
If a graphical approach is used to analyze a set of raw data group, if the data set is normally distributed it is linear that is it is (attached to each other), we can conclude that the data set is normally distributed because on the plotted graph the information appears linear.
Answer: t= 0.866
Step-by-step explanation:
Formula to find t-test statistic :
where, n= sample size
= sample mean
= Population mean
=sample standard deviation
Given : Null hypothesis : H0:μ=8.000 cm
Alternative hypothesis : H1:μ<8.000 cm , since alternative hypothesis is one-tailed , so the test is one-tailed test.
Then , the t‑statistic for this test will be :-
Hence, the value of the t‑statistic for this test : t= 0.866