In a survey, 29 people were asked how much they spent on their child's last birthday...

In a survey, 29 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $33 and standard deviation of $4. Find the margin of error at a 99% confidence level.

Give your answer to two decimal places.

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orchestra answered 1 year ago

In a survey, 29 people were asked how much they spent on their child's last birthday...

In a survey, 29 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $43 and standard deviation of $20. Construct a confidence interval at a 95% confidence level. Give your answers to one decimal place. ±

In a survey, 29 people were asked how much they spent on their child's last birthday...

In a survey, 29 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $48.1 and standard deviation of $2.6. Estimate how much a typical parent would spend on their child's birthday gift (use a 90% confidence level). Give your answers to 3 decimal places. Express your answer in the format of ¯xx¯ ±± E. $ ±± $

In a survey, 29 people were asked how much they spent on their child's last birthday...

In a survey, 29 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $33 and standard deviation of $15. Use the theory-based inference applet to find the confidence interval at a 99% confidence level. Give your answers to one decimal place. We are 99% confident that the average (mean) amount that people spent on their child's last birthday gift, μμ, was between dollars and dollars. The sample statistic is dollars....

In a survey, 17 people were asked how much they spent on their child's last birthday...

In a survey, 17 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $34 and standard deviation of $8. Find the margin of error at a 95% confidence level. Give your answer to two decimal places.

In a survey, 14 people were asked how much they spent on their child's last birthday...

In a survey, 14 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $41 and standard deviation of $12. Construct a confidence interval at a 99% confidence level.

In a survey, 24 people were asked how much they spent on their child's last birthday...

In a survey, 24 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $31 and standard deviation of $13. Construct a confidence interval at a 80% confidence level.

In a survey, 18 people were asked how much they spent on their child's last birthday...

In a survey, 18 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $33 and standard deviation of $5. Construct a confidence interval at a 95% confidence level. Give your answers to one decimal place. ±±

In a survey, 32 people were asked how much they spent on their child's last birthday...

In a survey, 32 people were asked how much they spent on their child's last birthday gift. The results were roughly shaped as a normal curve with a mean of $39 and standard deviation of $6. Find the margin of error at a 98% confidence level.

In a survey, 25 people were asked how much they spent on their child's last birthday...

In a survey, 25 people were asked how much they spent on their child's last birthday gift. The results were roughly shaped as a normal curve with a mean of $40 and standard deviation of $6. Construct a confidence interval at a 98% confidence level. Give your answers to one decimal place. ± Karen wants to advertise how many chocolate chips are in each Big Chip cookie at her bakery. She randomly selects a sample of 75 cookies and finds...

In a survey, 26 people were asked how much they spent on their child's last birthday...

In a survey, 26 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $42 and standard deviation of $7. Construct a confidence interval at a 90% confidence level. Give your answers to one decimal place and Interpret your confidence interval in the context of this problem.

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In a survey, 29 people were asked how much they spent on their child's last birthday...

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