Answer:
Step-by-step explanation:
Answer:
The 95% confidence interval obtained with a sample size of 64 will give greater precision.
Step-by-step explanation:
We are given the following in the question:
A 95% confidence interval is calculated with the following sample sizes

The population mean and standard deviation are unknown.
Effect of sample size on confidence interval:
- As the sample size increases the margin of error decreases.
- As the margin of error decreases the width of the confidence level decreases.
- Thus, with increased sample size the width of confidence level decreases.
If we want a confidence interval with greater precision that is smaller width, we have to choose the higher sample size.
Thus, the 95% confidence interval obtained with a sample size of 64 will give greater precision.
Answer:
Given - Twice a no. decrease by 22 is 48
To find - The no.
Solution -
Let the no. be X
According to the question, equation made is -
2x - 22 = 48
2x = 48 + 22
2x = 70
x = 70/2
X= 35
Verification -
35 ×2 - 22 = 48
70 - 22 = 48
48= 48
LHS = RHS
hence proved
Answer:3.8181818181818181818181818181818
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Step-by-step explanation:
Hello,
<span>to find the percent of a number what we have to do is to multiply the number by de percent that we want to know and divide by 100, so:
</span>
Answer: 118% of 19 is 22.42