(−5)(−0.4)(1.8)(−3.25)
2 answers:
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Let sum of 3 numbers be x.
Average of 3 numbers and 8 =
25 =
100 = x +8
x= 92.
The sum of 3 numbers is 92.
Average of 3 numbers and 8 =
25 =
100 = x +8
x= 92.
The sum of 3 numbers is 92.
Answer:
For this case we want to check if the true mean for the depth of groves cut into aluminium by a machine is equal to 1.7 (null hypothesis) and the alternative hypothesis would be the complement different from 1.7. And the best system of hypothesis are:
Null hypothesis:
Alternative hypothesis
Alternative hypothesis [tex]\mu \neq 1.7[/tx]
And the best system of hypothesis are:
3. This two-sided test:
H0: μ = 1.7 mm
H1: μ ≠ 1.7 mm
Because in '1/8', there are 8 whole number but one shaded and in '1/10', there are 10 whole number and one shaded. as you see in the picture, the smaller the denominator is(when it goes up), the more bigger it is than those below. So 1/8 is greater than 1/10. but 1/8 is smaller than 1/3, because remember:
*The more you go down(or the higher the denominator is), the more you are making the fraction into more smaller pieces.
*The more you go down(or the higher the denominator is), the more you are making the fraction into more smaller pieces.