If n=29, =38, and s=2, find the margin of error at a 80% confidence level using...
If n=13, x-bar=48, and s=9, find the margin of error at a 80% confidence level Give your answer to two decimal places.
1. If n=28, (x-bar)=49, and s=6, find the margin of error at a 95% confidence level. Give your answer to two decimal places. 2. In a survey, 10 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $39 and standard deviation of $8. Find the margin of error at a 90% confidence level. Give your answer to two decimal places. 3. If n=20, (x-bar)=50, and s=20, construct...
If n=11, 7(x-bar)-45, and s=7, find the margin of error at a 90% confidence level Give your answer to two decimal places.
If n=18, T(x-bar)-48, and s=4, find the margin of error at a 99% confidence level Give your answer to two decimal places.
Use the given confidence level and sample data to find (a) the margin of error and (b) the confidence interval for the population mean u. Assume that the population has a normal distribution. Weight lost on a diet: 90% confidence; n 20, x= 7.0 kg, s 9.2 kg. Click the icon to view a table of critical t-values. kg (Round to one decimal place as needed.) (a) E (b) What is the confidence interval for the population mean u? kg<u...
If n=150 and ˆpp^ (p-hat) =0.67, find the margin of error at a 95% confidence level Give your answer to three decimals
For a confidence level of 92%, find the critical value Question 5. Points possible: 1 This is attempt of Out of 500 people sampled, 280 had kids. Based on this, construct a 99% confidence interval for the true population proportion of people with kids. Give your answers as decimals, to three places <p Question 6. Pos t In a recent poll, 410 people were asked if they liked dogs, and 47% said they did. Find the margin of error of...
If n=10, ¯ x x ¯ (x-bar)=49, and s=6, find the margin of error at a 98% confidence level Give your answer to two decimal places.
Question 14 < If n=15, 2(x-bar)=43, and s=4, find the margin of error at a 99% confidence level Give your answer to two decimal places.
Retries 1 If n=11, ¯ x (x-bar)=46, and s=2, find the margin of error at a 99% confidence level (use at least three decimal places)