Question
In: Statistics and Probability
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 $33 and standard deviation of $16. Construct a
confidence interval at a 99% confidence level.
Give your answers to one decimal place.
±±
Solutions
orchestra answered 1 year agoRelated Solutions
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.
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, 20 people were asked how much they spent on their child's last birthday...
In a survey, 20 people were asked how much they spent on their
child's last birthday gift. The results were roughly bell-shaped
with a mean of $37 and a standard deviation of $9. Find the margin
of error at a 95% confidence level. Give your answer to two decimal
places.
In a survey, 21 people were asked how much they spent on their child's last birthday...
In a survey, 21 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 $4. Find the margin of
error at a 95% confidence level. Give your answer to two decimal
places.
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.
±
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