# Sampling frame problems and answers

Recent questions in Sampling Frame
garkochenvz 2022-08-11

### Homer Simpson is interested in studying the ratio of the various colors of sprinkles on Lard Lad donuts. To conduct his study, Homer purchases three of each variety of donut they make and counts the sprinkles on them. What method did Homer use to select his sample?1. Stratified2. Simple Random Sample3. Systematic

Moselq8 2022-08-11

### A transportation researcher is funded to estimate the proportion of automobile tires with an unsafe tread thickness in a small northern state. The researcher randomly selects one month during each of the four seasons for taking the measurements. During each of the four selected months, the researcher randomly selects 500 cars from the list of registered cars in the state and then measures the tread thickness of the four tires on each of the selected cars.a) What is the population of interest?b) What is the sampling frame?c) What biases if any may result from using the data from this study to obtain the estimated proportion of cars with an unsafe thread thickness?

ljudskija7s 2022-08-11