A part is being machined. The starting thickness
1 answer:
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Answer:
Step-by-step explanation:
n = sample size = 5
a) Let us determine the sum
Now we can determine
The estimate b of the slope β is the ratio of and
The mean is the sum of all value divide by number of values
The estimate a of the intercept is
General least square equation;
replace alpha by a = 3 and beta by b = 0.67 in general least equation
y = a + bx
195.9 + 0.67x
b)
<em>Scatter plot is shown in the attached file</em>
x is on the horizontal axis
y is n the vertical axis
The degree of freedom of regression is 1
because we use one variable s predictor variable
The degree of freedom of error is the sample size n decrease by 2
Total df is equal to the sum of seperate degree of freedom dfR and dfE
total df = 1 +3 4
Total SS =Syy= 45007.2
SSE + Total SS = SSR
= 45007.2 - 43146.9296
= 1860.2705
Answer:
There's no specific formula to find the square root of a number, however we can find the square root of a number by the following methods:
i) By Prime Factorisation
ii) By Long Division
iii) By Repeated subtraction method
<h2><u>✏ By Prime Factorisation: </u></h2>Step I: Obtain the given number.
Step II: Reduce the given number into prime factors by successive division.
Step III: Now make pairs of prime factors in such a way that both the factors in each pair are equal.
Step IV: Take one factor from each pair and find the product of these factors.
Step V: The product obtained by multiplying the factors is the required square root.
<h2><u>✏ Long Division:</u></h2>Step 1: Firstly, we place a bar on every pair of digits starting from the unit digit. If the number of digits in it is odd, we put a bar on the single-digit too.
Step 2: Now we find the largest number whose square is less than or equal to the 1st number.
Step 3: Now we bring down the next bar number.
Step 4: For new divisor, we add the divisor & quotient.
Step 5: Number taken is the product of a new divisor and this digit is equal to or less than the new dividend.
<h2><u>✏ Repeated subtraction method: </u></h2>In this method, the given number is subtracted by 1, 3, 5, 7,… at every step till you get zero at the end. The number of steps in the solution is the required square root.
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