MATLAB: An Introduction with Applications
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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
Give your answers to one decimal place.
Correct ±± Incorrect
Interpret your confidence interval in the context of this problem.
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- In a survey, 16 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $49 and standard deviation of $13. Construct a confidence interval at a 99% confidence level.Give your answers to one decimal place.arrow_forwardIn a survey, 30 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $30 and standard deviation of $16. Construct a confidence interval at a 99% confidence level.Give your answers to one decimal place.arrow_forwardConstruct a 96% confidence interval if x=75 and n=200. Round your answers to 3 decimal places.arrow_forward
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