In a survey, 291 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $30.78 and standard deviation of $6.09. Estimate how much a typical parent would spend on their child's birthday gift (use a z-interval at a 80% confidence level). Give your answers to 2 decimal places. Express your answer in the format of E.
In a survey, 291 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $30.78 and standard deviation of $6.09. Estimate how much a typical parent would spend on their child's birthday gift (use a z-interval at a 80% confidence level). Give your answers to 2 decimal places. Express your answer in the format of E.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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![In a survey, 291 people were asked how much they spent on their child's last birthday gift. The results were
roughly bell-shaped with a mean of $30.78 and standard deviation of $6.09. Estimate how much a typical
parent would spend on their child's birthday gift (use a z-interval at a 80% confidence level). Give your
answers to 2 decimal places.
Express your answer in the format of E.
S
+$](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F11f84057-ddc6-4a16-833f-eeebb801b1ce%2Ff074226e-3d27-46be-8d2e-17664e589954%2Fyq08h8d_processed.png&w=3840&q=75)
Transcribed Image Text:In a survey, 291 people were asked how much they spent on their child's last birthday gift. The results were
roughly bell-shaped with a mean of $30.78 and standard deviation of $6.09. Estimate how much a typical
parent would spend on their child's birthday gift (use a z-interval at a 80% confidence level). Give your
answers to 2 decimal places.
Express your answer in the format of E.
S
+$
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