A survey of several 10 to 11 year olds recorded the following amounts spent on a trip to the mall: $17.33,$19.83,$21.10,$24.20,$13.72,$17.82  Construct the 95% confidence interval for the average amount spent by 10 to 11 year olds on a trip to the mall. Assume the population is approximately normal. Step 3 of 4 :  Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places.

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Q: Construct a 95% confidence interval for the proportion of people who performed any volunteer work…

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Q: A survey of several 8 to 11 year olds recorded the following amounts spent on a trip to the mall:…

A: The amounts spent on a trip to the mall is 19.36,29.95,7.82,8.36,21.07,14.06,22.22

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Q: Construct a confidence interval for the mean of the paired differences for the two populations with…

A: Solution: From the given information, n=32, d-bar=1.358, α=0.05 and sd=0.635.

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Q: A random sample of 230 people living in Seattle found that 83 of them had a pet. A random sample of…

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A:

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Q: A survey of several 9 to 11 year olds recorded the following amounts spent on a trip to the mall:…

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Q: A survey of several 8 to 10 year olds recorded the following amounts spent on a trip to the mall:…

A: Obtain the 99% confidence interval for the average amount spent by 8 to 10 years olds on a trip to…

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

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.