When you mean -2+2,than it is 0

**Answer:**

b) We are 95% confident that the proportion of coworkers who have received this year's flu vaccine is between 44.7% and 57.3%

**Step-by-step explanation:**

<em><u>a) 95% of the coworkers fall in the interval (0.447, 0.573).</u></em>

**False. **This interval is about the worker's flu vaccine proportion

<u><em>b) We are 95% confident that the proportion of coworkers who have received this year's flu vaccine is between 44.7% and 57.3%.</em></u>

**True. **95% confidence level suggests that.

<u><em>c) There is a 95% chance that a random selected coworker has received the vaccine.</em></u>

**False.** A random selected coworker has received the vaccine proportion is between 44.7% and 57.3%.

<em><u>d) There is a 51% chance that a random selected coworker has received the vaccine</u></em>

**False. **This chance is between 44.7% and 57.3% in 95% confidence level.

<em><u>e) We are 95% confident that between 44.7% and 57.3% of the samples will have a proportion near 51%.</u></em>

**False. **This sentence is not meaningful.

The correct answer is c d b if you have any other question feel free to contact me