Question

11. cost of shopping do consumers spend more on a trip to walmart or target? suppose researchers interested in this question collected a systematic sample from 85 walmart customers and 80 target customers by asking customers for their purchase amount as they left the stores. to perform inference on these two samples, what conditions must be met? are they? explain.

Answer 1

To perform inference on the samples collected from Walmart and Target customers, certain conditions must be met: independence, random sampling, normality, and equal variances.

Step-by-step explanation:

In order to perform inference on the two samples collected from Walmart and Target customers, certain conditions must be met:

1. Independence: The samples must be collected independently from each other, meaning that the response of one customer does not influence the response of another customer.
2. Random Sampling: The samples must be collected using a random sampling method, where every customer in the population has an equal chance of being selected for the sample.
3. Normality: The distribution of the two populations must be approximately normal, or the sample size must be large enough for the Central Limit Theorem to apply.
4. Equal Variances: The variances of the two populations must be equal.

Based on the information provided, it is not clear if these conditions have been met. We don't have information on how the samples were collected, if they were collected independently, or if the populations have approximately normal distributions. The conditions must be verified before performing inference on the samples.