1. In which of the following scenarios would conducting regression analysis be most appropriate?

Group of answer choices

a. Determining the most frequently purchased brand of cereal among different age groups in a supermarket.

b. Calculating the average time spent by customers on an e-commerce website.

c. Identifying the main themes from customer feedback comments on a new software product.

d. Assessing the impact of advertising spend on sales revenue over the past year.

2. Which of the following scenarios best represents the collection of primary data in marketing research?

Group of answer choices

a. Analyzing sales data from the past year obtained from the company's internal database.

b. Examining social media posts to assess public sentiment about a brand.

c. Conducting a survey to gather customer opinions about a new product.

d. Reviewing published industry reports to understand market trends.