httpwww2sharedcomdocumentmkfmt ordata sethtmlthis data set contains last months credit card purc

Name: httpwww2sharedcomdocumentmkfmt ordata sethtmlthis data set contains last months credit card purchases of 500 customers randomly selected from all customers of bank inc a major credit card co 02114
Uploaded: 2023-07-16T13:10:11-08:00
Duration: 15 s
Channel: Numerade
Description: httpwww2sharedcomdocumentmkfmt ordata sethtmlthis data set contains last months credit card purchases of 500 customers randomly selected from all customers of bank inc a major credit card co 02114

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Question

This data set contains last month's credit card purchases of 500 customers randomly selected from all customers of Bank, INC., a major credit card company. The marketing department of Bank, INC. is considering a special offer for Bank, INC. credit card holders who spent $1000 or more last month on their card. From these data, construct a 95% confidence interval for the proportion of all Bank, INC. credit card holders who will qualify for the promotion. Please calculate the standard error of p-hat to 3 decimal places. A. What is the lower bound? B. What is the upper bound? Historically, the percentage of URBroke customers who spent $1000 or more in any given month on their credit card has been 11%, and the marketing department wonders if the percentage has increased because of economic conditions. So the marketing department performs the hypothesis test: H0: p = 0.11 HA: p > 0.11, where p is the proportion of URBroke customers who spend more than $1,000 on their credit card in a month. Question 2. What is the value of the test statistic for this hypothesis test? NOTE: Calculate the standard error of p-hat to 3 decimal places. Question 3. What is the P-value for this hypothesis test? Question 4. What is the correct conclusion for this hypothesis test? -- Do not reject the null hypothesis and conclude that the proportion of URBroke customers who spend more than $1,000 per month on their credit card is not significantly different from the historical value of 0.11. -- Reject the null hypothesis and conclude that the proportion of URBroke customers who spend more than $1,000 per month on their credit card has decreased from the historical value of 0.11. -- Reject the null hypothesis and conclude that the proportion of URBroke customers who spend more than $1,000 per month on their credit card has increased from the historical value of 0.11. -- Accept the null hypothesis that the proportion of URBroke customers who spend more than $1,000 per month on their credit card is 0.11 since the P-value is less than 0.05. -- Do not reject the null hypothesis and conclude that the proportion of URBroke customers who spend more than $1,000 per month on their credit card has decreased from the historical value of 0.11.

This data set contains last month's credit card purchases of 500 customers randomly selected from all customers of Bank, INC., a major credit card company. The marketing department of Bank, INC. is considering a special offer for Bank, INC. credit card holders who spent $1000 or more last month on their card.

From these data, construct a 95% confidence interval for the proportion of all Bank, INC. credit card holders who will qualify for the promotion. Please calculate the standard error of p-hat to 3 decimal places.

A. What is the lower bound?
B. What is the upper bound?

Historically, the percentage of URBroke customers who spent $1000 or more in any given month on their credit card has been 11%, and the marketing department wonders if the percentage has increased because of economic conditions. So the marketing department performs the hypothesis test:

H0: p = 0.11
HA: p > 0.11, where p is the proportion of URBroke customers who spend more than $1,000 on their credit card in a month.

Question 2. What is the value of the test statistic for this hypothesis test?
NOTE: Calculate the standard error of p-hat to 3 decimal places.

Question 3. What is the P-value for this hypothesis test?

Question 4. What is the correct conclusion for this hypothesis test?
-- Do not reject the null hypothesis and conclude that the proportion of URBroke customers who spend more than $1,000 per month on their credit card is not significantly different from the historical value of 0.11.
-- Reject the null hypothesis and conclude that the proportion of URBroke customers who spend more than $1,000 per month on their credit card has decreased from the historical value of 0.11.
-- Reject the null hypothesis and conclude that the proportion of URBroke customers who spend more than $1,000 per month on their credit card has increased from the historical value of 0.11.
-- Accept the null hypothesis that the proportion of URBroke customers who spend more than $1,000 per month on their credit card is 0.11 since the P-value is less than 0.05.
-- Do not reject the null hypothesis and conclude that the proportion of URBroke customers who spend more than $1,000 per month on their credit card has decreased from the historical value of 0.11.

Added by Morgan L.

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