"A local bookstore just launched a loyalty program on Oct $10,$ similar to the Giant Eagle Advantage card. Using the collected data, the store manager tracked the sales on a list of products on Oct $3$ and Oct $17.$ He is interested in checking whether this program brings in more sales. What kind of confirmatory analysis shall he pursue?"

Group of answer choices

T$-$test for independent samples

Plotting sales of two days in one chart

T$-$test for independent samples with unequal variance

T$-$test for two paired samples

none of the listed are correct