Answer:
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Step-by-step explanation:
hope it helps
A. 38/4
B. 9 2/4
C. 9 1/2
D. 9
Answer:
C.
Step-by-step explanation:
In prime factored form, we write a number as a product of prime numbers that, when multiplied together, give you that number.
Also, prime number is a number which is only divisible by 1 and itself.
Here, the given number is,
Since, 27 = 3 × 3 × 3
Where, 3 is a prim number,
And, 54 = 3 × 3 × 3 × 2
Where, both 3 and 2 are prime numbers,
Option C is correct.
In order to meet the sample assumption associated with parametric statistics, the number of subjects needed depends on the specific statistical test being used. Generally, the rule of thumb is to have a minimum of 30 subjects in each group being compared.
However, this number may increase or decrease depending on factors such as the effect size, variability in the data, and the statistical power desired.
It is important to have enough subjects so that the data is normally distributed, and there is enough content loaded to meet the assumptions of the statistical test.
To know more about statistics refer here
brainly.com/question/31577270#
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B 95%
C 10%
D 5%
Answer: Option 'A' is correct.
Step-by-step explanation:
Since we have given that
Population Mean weight ()= 10 grams a piece
Standard deviation of the weight of a box = 3 grams
Number of mints = 10
We need to buy a box of mints that weighs 95 grams.
Sample mean is given by
First we find out the standard error which is given by
Since it is normal distribution, so, we will find z-score.
The area to the left of a z-score of -0.53 = 0.29805.
So, it may be 90% or 95 % confidence.
For 95% confidence level,
Similarly,
For 90% confidence level,
We have little confidence that the box he bought did not come from the factory. that is much smaller than 0.05.
So, it is safe to assume 90% confidence.
So, we will get 90% confidence, critical value = 1.645
Margin of error is given by
So, confidence interval will be
(10-1.56,10+1.56)
=(8.44,11.56)
Hence, Option 'A' is correct.