Let's break down and solve the given questions step by step, based on the data presented in the image.

Problem Setup:

• The average (mean) of the population is 4200.
• The applet created a simulated distribution based on 1000 sample statistics.
• The histogram and count show 61/1000 (0.0610) samples less than or equal to 4084.

Now answering each part:

(a) What is the value of the observed sample statistic?

The observed sample statistic corresponds to the boundary value highlighted, which appears to be 4084 based on the information provided in the histogram and the description.

(b) Which symbol is used for the statistic in this situation?

Since we are working with a sample mean (as per the problem's context), the symbol used for the sample statistic would be $\bar{x}$ (x-bar), which represents the sample mean.

• Answer: $\bar{x}$

(c) Which statement accurately states the population mean?

The population mean is given as 4200, not 4084 (which is the sample mean from the simulated distribution).

• Correct Answer: $\mu = 4200$

(d) The proportion of simulated statistics that are like our observed statistic or more extreme is...

The proportion is given as 61/1000, which is 0.0610. This represents the proportion of simulated sample statistics less than or equal to 4084.

• Correct Answer: 61/1000 = 0.0610

(e) Finish the sentence:

"In a population that has a mean of 4200, if we collect a random sample from that population as was collected in this example, then the probability of ___ is 6.1%."

Since 6.1% is the probability of getting a sample statistic like 4084 or lower, the sentence should finish with:

• Correct Answer: getting a sample statistic like 4084 or lower is 6.1%.

Do you want details or have any questions?

Here are 5 follow-up questions based on the explanation:

1. How is the sample mean $\bar{x}$ different from the population mean $\mu$?
2. Why is $\bar{x}$ used to represent the sample mean?
3. What does the proportion of 61/1000 signify in the context of sampling distributions?
4. How would the result change if the sample statistic was higher than the population mean?
5. What is the difference between the population proportion $\pi$ and the population mean $\mu$?

Tip: Understanding the difference between sample statistics and population parameters is key in inferential statistics, as sample statistics are used to estimate unknown population parameters.