According to a money report by a government institution, 18-to-20-year-old college students have an average credit card balance of $569 Aresearcher wants to find out if this number is lower now and collects data for a random sample of 40 college students Their average credit card debt was found to be $542 with a sample standard deviation of $67.23. Complete parts a through c a. Using 005, does this sample provide enough evidence to conclude that the average credit card balance of 18-to-20-year-old college students has decreased since 2016? Determine the null and altermative hypotheses Ho H H (Type integers or decimals Do not round Do not include the $ symbol in your answers) Determine the appropriate critical value Select the crrect choice below and fill in the answer box within your choice (Round to three decimal places as needed.) OA - OB. /2
According to a money report by a government institution, 18-to-20-year-old college students have an average credit card balance of $569 Aresearcher wants to find out if this number is lower now and collects data for a random sample of 40 college students Their average credit card debt was found to be $542 with a sample standard deviation of $67.23. Complete parts a through c a. Using 005, does this sample provide enough evidence to conclude that the average credit card balance of 18-to-20-year-old college students has decreased since 2016? Determine the null and altermative hypotheses Ho H H (Type integers or decimals Do not round Do not include the $ symbol in your answers) Determine the appropriate critical value Select the crrect choice below and fill in the answer box within your choice (Round to three decimal places as needed.) OA - OB. /2
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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According to a money report by a government institution, 18-to-20-year-old college students have an average credit card balance of $569 A researcher wants to find out if this number is lower now and collects data for a random
sample of 40 college students Their average credit card debt was found to be $542 with a sample standard deviation of $67.23. Complete parts a through c.
Calculate the appropriate test statIstic
(Round to two decimal places as needed)
State the conclusion
V Ho There
V sufficient evidence to conclude that the average credit card balance of 18-to-20-year old college students has
V since 2016.
b. Does changing the value of from 0.05 to 0.01 afect the conclusion? Why or why not?
The conclusion should
V because the test statistic is
(Round to three decimal places as needed)
c. Determine the precise p-value for this test using Excel
The p-value is
(Round to three decimal places as needed)
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According to a money report by a government institution, 18-to-20-year-old college students have an average credit card balance of $569 A researcher wants to find out if this number is lower now and collects data for a random
sample of 40 college students Their average credit card debt was found to be $542 with a sample standard deviation of $67.23. Complete parts a through c.
a. Using 005, does this sample provide enough evidence to conclude that the average credit card balance of 18-to-20-year-old college students has decreased since 2016?
Determine the null and alternative hypotheses
Ho H
H
(Type integers or decimals. Do not round Do not include the $ symbol in your answers)
Determine the appropriate critical value. Select the carrect choice below and fill in the answer box within your choice
(Round to three decimal places as needed.)
OA la
O B. ta/2
OC - ta
...
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Save for Later
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FO
FO
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F4
Page
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9.
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