Final answer:
The estimated population proportion of voters in Bear Gulch that support Ms. Maria Wilson, based on the survey of 400 voters where 300 indicated their support, is 75%.
Step-by-step explanation:
Ms. Maria Wilson is assessing her potential voter support in Bear Gulch, Montana, and a survey of 400 voters indicates that 300 would support her. To estimate the population proportion of support, we would use the sample proportion. The sample proportion (often denoted as p) is calculated by dividing the number of successes (votes in her favor) by the total number of trials (the size of the sample).
Therefore, the estimated population proportion is:
p = Number of favorable votes / Total number of voters surveyed
p = 300 / 400 = 0.750
Hence, we estimate that 75% of the voter population in Bear Gulch may support Ms. Wilson in the upcoming election.