Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
We begin with 
First, we can convert this decimal into a fraction
Now, we can simplify the denominator of the fraction
Next, we can remove the fraction by rewriting the fraction with a negative power.
Lastly, we can remove the parenthesis by multiplying the powers together.
This means that
-5, because subtracting a negative is the same as adding a positive, which will bring -9 up to -5
Answer:
(a) 95% confidence interval for the percent of all adults who want to lose weight is (48%, 54%) that is between 48% and 54%
(b) to say that we have 95% confidence in this interval means that there is 95% chance that the true percentage of all adults who wants to lose weight falls in this interval.
Step-by-step explanation:
The question is missing, complete question is below:
A Gallup Poll found that 51% of the people in its sample said "yes" when asked, "Would you like to lose weight?" Gallup announced: "With 95% confidence for results based on the total sample of national adults, one can say that the margin of sampling error is ± 3%."
(a) What is the 95% confidence interval for the percent of all adults who want to lose weight?
(b) What does it mean to say that we have 95% confidence in this interval?
Confidence Interval can be calculated using p±ME where
- p is the sample proportion of national adults who want to lose weight (51%)
- ME is the margin of sampling error (± 3%)
Answer:
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Step-by-step explanation:
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