According to a report, 62.5% of murders are committed with a firearm. (a) If 100 murders are randomly selected, how many would we expect to be committed with a firearm? (b) Would it be unusual to observe 68 murders by firearm in a random sample of 100 murders? Why? ..... (a) We would expect to be committed with a firearm. (b) Choose the correct answer below. A. No, because 68 is between u - 20 andu + 20. O B. No, because 68 is greater than u + 20. C. Yes, because 68 is between u - 20 and u + 20. O D. Yes, because 68 is greater than u + 2o. E. No, because 68 is less than u - 20. O O

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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**Problem Description:**

According to a report, 62.5% of murders are committed with a firearm.

**Questions:**

(a) If 100 murders are randomly selected, how many would we expect to be committed with a firearm?

(b) Would it be unusual to observe 68 murders by firearm in a random sample of 100 murders? Why?

---

**(a)** 

We would expect [blank] to be committed with a firearm.

**(b)** 

Choose the correct answer below.

- **A.** No, because 68 is between μ − 2σ and μ + 2σ.
- **B.** No, because 68 is greater than μ + 2σ.
- **C.** Yes, because 68 is between μ − 2σ and μ + 2σ.
- **D.** Yes, because 68 is greater than μ + 2σ.
- **E.** No, because 68 is less than μ − 2σ.
Transcribed Image Text:**Problem Description:** According to a report, 62.5% of murders are committed with a firearm. **Questions:** (a) If 100 murders are randomly selected, how many would we expect to be committed with a firearm? (b) Would it be unusual to observe 68 murders by firearm in a random sample of 100 murders? Why? --- **(a)** We would expect [blank] to be committed with a firearm. **(b)** Choose the correct answer below. - **A.** No, because 68 is between μ − 2σ and μ + 2σ. - **B.** No, because 68 is greater than μ + 2σ. - **C.** Yes, because 68 is between μ − 2σ and μ + 2σ. - **D.** Yes, because 68 is greater than μ + 2σ. - **E.** No, because 68 is less than μ − 2σ.
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