A survey was conducted two years ago asking college students their top motivations for using a...
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A survey was conducted two years ago asking college students their top motivations for using a credit card. The percentages are shown in the table to the right. Also shown in the table is the observed frequency for these motivations from a current random sample of college students who use a credit card. Complete parts a through c below. |
| Response | Old Survey % | New Survey Frequency, f |
| Rewards | 29% | 112 |
| Low Rates | 23% | 96 |
| Cash back | 21% | 109 |
| Discounts | 8% | 48 |
| Other | 19% | 60 |
Using α=0.025, perform a chi-square test to determine if the probability distribution for the motivations for using a credit card changed between the two surveys.
Calculate the test statistic.
X2=
(Round to two decimal places as needed.)
Determine the critical value,
χ2α =
(Round to three decimal places as needed.)
B. Determine the p-value and interpret its meaning.
p-value =
(Round to three decimal places as needed.)
Homework Answers
Here first we need to find the expected values
the expected values obtained by multiplying the total and the percentage
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A survey was conducted two years ago asking college students
their top motivations for using a...
A survey was conducted two years ago asking college students their top motivations for using a...
A survey was conducted two years ago asking college students their top motivations for using a credit card. The percentages are shown in the table to the right. Also shown in the table is the observed frequency for these motivations from a current random sample of college students who use a credit card. Complete parts a through c below. Response Old Survey % New Survey Frequency, f Rewards 2727% 112112 Low rates 2323% 9797 Cash back 2222% 109109 Discounts...
New Survey A survey was conducted two years ago asking college students their top motivations for...
New Survey A survey was conducted two years ago asking college students their top motivations for using a credit card. To determine whether this distribution has changed, you randomly select 425 college students and ask each one what the top motivation is for using a credit card. Can you conclude that there has been a change in the claimed or expected distribution? Use a =0.05. Complete parts (a) through (d). Response Old Survey % Rewards 28% Low rates 24% Cash...
A survey was conducted two years ago asking college students their top motivations for using a...
A survey was conducted two years ago asking college students their top motivations for using a credit card. To determine whether this distribution has changed, you randomly select 425 college students and ask each one what the top motivation is for using a credit card. Can you conclude that there has been a change in the claimed or expected distribution? Use alpha α=0.025. Old Survey % New Survey Frequency, f Rewards 29% 110 Low rates 23% 98 Cash back ...
critical value is 7.779 I think A survey was conducted two years ago asking college students...
critical value is 7.779 I think
A survey was conducted two years ago asking college students their top motivations for using a credit card. To determine whether this distribution has changed, you randomly select 425 college students and ask each one what the top motivation is for using a credit card. Can you conclude that there has been a change in the claimed or expected distribution? Use a = 0.10. Complete parts (a) through (d). Response Old Survey % Rewards...
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A report about how American college students manage their finances Includes data from a survey of...
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New Survey A survey was conducted two years ago asking college students their top motivations for using a credit card. To determine whether this distribution has changed, you randomly select 425 college students and ask each one what the top motivation is for using a credit card. Can you conclude that there has been a change in the claimed or expected distribution? Use a =0.05. Complete parts (a) through (d). Response Old Survey % Rewards 28% Low rates 24% Cash...
critical value is 7.779 I think
A survey was conducted two years ago asking college students their top motivations for using a credit card. To determine whether this distribution has changed, you randomly select 425 college students and ask each one what the top motivation is for using a credit card. Can you conclude that there has been a change in the claimed or expected distribution? Use a = 0.10. Complete parts (a) through (d). Response Old Survey % Rewards...
A report about how American college students manage their finances includes data from a survey of college students. Each person in a representative sample of 793 college students was asked if they had one or more credit cards and if so, whether they paid their balance in full each month. There were 500 who paid in full each month. For this sample of 500 students, the sample mean credit card balance was reported to be $825. The sample standard deviation...
A report about how American college students manage their finances Includes data from a survey of college students. Each person in a representative sample of 793 college students was asked if they had one or more credit cards and if so, whether they paid the balance in each month. There were 500 who paid in full each month. For this sample of 500 students, the sample mean credit card balance was reported to be $825. The sample standard deviation of...
The mean age of De Anza College students in a previous term was 26.6 years old. An instructor thinks the mean age for online students is older than 26.6. She randomly surveys 56 online students and finds that the sample mean the 5% level s 29.8 with a standard deviation of 2.1. Conduct a hypothesis test Note: If you are using a Student's t-distribution for the problem, you may assume that the underlying population is normally distributed. (In general, you...
The Majoring in Money study by Sallie Mae from December 2015 showed that most college students manage theit card balance in full every month and 25% of students who own credit cards make partial payments that exceed the has changed since 2015 and collect data from a random sample of 380 students. You find that 70 students are ma Q = 0.05, complete parts a and b below. O C. Ho:p>0.25 OD. HE H1: ps 0.25 H Determine the critical...
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