The dot plots show the heights of boys and girls at a summer camp. Heights of Boys and Girls at Camp 2 dot plots with number lin
1 answer:
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<u>Answer:</u>
2
<u>Step-by-step explanation:</u>
• Multiplying two numbers with same bases is the same as adding their powers:
∴
⇒
⇒
• Dividing two numbers with same bases is the same as subtracting their powers:
∴
⇒
⇒
⇒
• Raising anything to the power of is the same as square-rooting it:
∴
⇒
⇒ 2
Answer:
a) 96% CI:
b) If we estimate that the fraction of voters is 0.57, we can claim with 96% confidence that the error is equal or less than 0.06 from the estimated proportion.
Step-by-step explanation:
The proportion of the sample is
The standard deviation of the sample proportion is
For a 96% CI, the z-value is z=1.751.
Then, the 96% CI can be written as:
b) If we estimate that the fraction of voters is 0.57, we can claim with 96% confidence that the error is equal or less than 0.06 from the estimated proportion.