Based on USDA suggestion, a U.S. adult should be spending anywhere from $165 to $345 per month on food, depending on age and gender. A random sample of 120 adults in Washington State is polled regarding the amount of money they spend each month on food. The sample has an average of $273.61 with a standard deviation of $61.59. Based on this information, complete the following questions. a) Show that the requirements to build a confidence interval are met. b) State the critical value for a 90% confidence interval c) Compute the 90% confidence interval. State values to two decimal places. d) Interpret the 90% confidence interval using complete sentences.
Based on USDA suggestion, a U.S. adult should be spending anywhere from $165 to $345 per month on food, depending on age and gender. A random sample of 120 adults in Washington State is polled regarding the amount of money they spend each month on food. The sample has an average of $273.61 with a standard deviation of $61.59. Based on this information, complete the following questions. a) Show that the requirements to build a confidence interval are met. b) State the critical value for a 90% confidence interval c) Compute the 90% confidence interval. State values to two decimal places. d) Interpret the 90% confidence interval using complete sentences.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Based on USDA suggestion, a U.S. adult should be spending anywhere from $165 to $345 per month on
food, depending on age and gender. A random sample of 120 adults in Washington State is polled
regarding the amount of money they spend each month on food. The sample has an average of $273.61
with a standard deviation of $61.59. Based on this information, complete the following questions.
a) Show that the requirements to build a confidence interval are met.
b) State the critical value for a 90% confidence interval
c) Compute the 90% confidence interval. State values to two decimal places.
d) Interpret the 90% confidence interval using complete sentences.
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