Question

You believe that self-checkouts in supermarkets are faster. outline an experiment with 100 men and 100 women that uses randomized allocation.

Answer 1

To conduct an experiment with 100 men and 100 women comparing the speed of self-checkouts in supermarkets, use randomized allocation. Allocate them into two groups: one using self-checkouts and the other using manned checkouts. Compare the average times of the two groups to determine which is faster.

Step-by-step explanation:

To conduct an experiment with 100 men and 100 women to compare the speed of self-checkouts in supermarkets, you can use randomized allocation. Here is an outline of the experiment:

1. Create a pool of 100 men and 100 women as potential participants.
2. Allocate them randomly into two groups: Group A and Group B.
3. In Group A, allow participants to use self-checkouts in the supermarket.
4. In Group B, ask participants to use traditional manned checkouts.
5. Measure the time taken by each participant to complete their grocery shopping.
6. Collect data on the time taken by each group and calculate the average time for both groups.
7. Compare the average time taken by Group A (self-checkouts) and Group B (manned checkouts) to determine which is faster.

By using randomized allocation, you ensure that the assignment of participants to each group is unbiased and avoids any potential confounding variables. This allows for a fair comparison between self-checkouts and manned checkouts in terms of speed.