Understanding Statistics: Mastery Test Ол Select the correct answer. Under which condition is the sample proportion, P, a point estimate of the population proportion? OA The sample proportion is unbiased. OB. The sample represents a proportion of the population. OC. The sample size, n, is small enough. OD. The sample proportion is never a point estimate of the population proportion.

Now, martin can reasonably guess that the standard deviation for the entire population of people at the mall during the time of the survey is $1.50. what is the 95% confidence interval about the sample mean? interpret what this means in the context of the situation where 95 people were surveyed and the sample mean is $8. use the information in this resource to construct the confidence interval.