Simplifythe expression to a polynomial in standard form. (4x-3)(-2x^2-7x-5)
2 answers:
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Answer and Step-by-step explanation:
a. Yes, since the highest standard deviation (s4 = 44.51) is significantly more than double the lowest (s3 = 20.83) is plausible.
hence, the second option is correct
(b) The testing of relevant hypothesis using the output is shown below:
As we see that
The 0.05 is more than the F test P-value i.e 0.0000
So ultimately P-value is less
Therefore we have to reject the null hypothesis
Since p-value is less than 0.05 so we reject the null hypothesis.
Therefore, the third option is correct
(c) The construction is shown below:
Since the sample size is the same so for Tuley's HSD it would also same i.e for each pair
Now Tuley's HSD is
The table that reflects the difference in means in different level is as follows
Levels Difference in mean
4-6 34.85
4-8 41.92
4-10 74.15
4-12 103.96
6-8 7.07
6-10 39.3
6-12 69.11
8-10 32.23
8-12 62.04
10-12 29.81
Now the table of significant difference is
Levels Difference in mean
4-10 74.15
4-12 103.96
6-12 69.11
8-12 62.04
Answer:
Step-by-step explanation:
<u>Key skills needed: Explicit formula, Geometric sequence</u>
1) This is a geometric sequence, meaning a constant (like 6 or 3.5) is being multiplied to every term. First we need to find the constant.
This can be done by doing -42 ÷ 7 or 252 ÷ -42
-42 ÷ 7 equals -6.
252 ÷ -42 also equals -6.
2) This means that constant is -6.
3) The general form for an explicit formula of a geometric sequence is:
--> r means the constant (or common ratio) that is being multiplied.
--> means the first term
--> means the "nth" numbered term (so
is the 3rd term,
is the 10th term and so on).
--> is just the "n" in
minus 1.
4) We can use this formula to create an explicit formula for the geometric sequence in the problem.
--> (Since we got -6 as the constant/common ratio).
--> (Since 7 is the 1st term)
This means that our formula would be -->
<em>Hope you understood and have a nice day!! :D</em>