The Centers for Disease Control and Prevention (CDC) is required by law to publish a report on assisted reproductive technology (ART). ART includes all fertility treatments in which both the egg and the sperm are used. These procedures generally involve removing eggs from a woman's ovaries, combining them with sperm in the laboratory, and returning them to the woman's body or giving them to another woman.

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The Centers for Disease Control and Prevention (CDC) is required by law to publish a report on assisted reproductive technology (ART). ART includes all fertility treatments in which both the egg and the sperm are used. These procedures generally involve removing eggs from a woman’s ovaries, combining them with sperm in the laboratory, and returning them to the woman’s body or giving them to another woman.

You are helping to prepare the CDC report and select at random 10 ART cycles for a special review. None of the cycles resulted in a clinical pregnancy. Your manager feels it is impossible to select at random 10 ART cycles that do not result in a clinical pregnancy. Use the pie chart at the right and your knowledge of statistics to determine whether your manager is correct.

**EXERCISES**
1. **How Would You Do It?**
   (a) How would you determine whether your manager is correct; that it is impossible to select at random 10 ART cycles that do not result in a clinical pregnancy?
   (b) Is the probability distribution you think best describes the situation? Do you think the distribution of the number of clinical pregnancies is discrete or continuous? Explain your reasoning.

2. **Answering the Question**
   Write an explanation that answers the question, “Is it possible to select at random 10 ART cycles that do not result in a clinical pregnancy?” Include in your explanation the appropriate probability distribution and your calculation of the probability of no clinical pregnancies in 10 ART cycles.

3. **Suspicious Samples?**
   A lab worker tells you that the samples below were selected at random. Using the graph at the right, which of the samples would you consider suspicious? Would you believe that the samples were selected at random? Explain your reasoning.
   (a) A sample of 10 ART cycles among women of age 40, eight of which resulted in clinical pregnancies.
   (b) A sample of 10 ART cycles among women of age 41, none of which resulted in clinical pregnancies.

**Graphs and Diagrams Explanation**

- The pie chart titled "Results of ART Cycles Using Fresh Nondonor Eggs or Embryos" shows:
  - Clinical pregnancy: 33.0%
  - Ectopic pregnancy: 0.6%
  - No pregnancy: 66.4%

- The bar graph titled "Pregnancy and Live Birth Rates for ART Cycles Among Women of Age 40 and Older" illustrates:
  - Pregnancy rate and
Transcribed Image Text:The Centers for Disease Control and Prevention (CDC) is required by law to publish a report on assisted reproductive technology (ART). ART includes all fertility treatments in which both the egg and the sperm are used. These procedures generally involve removing eggs from a woman’s ovaries, combining them with sperm in the laboratory, and returning them to the woman’s body or giving them to another woman. You are helping to prepare the CDC report and select at random 10 ART cycles for a special review. None of the cycles resulted in a clinical pregnancy. Your manager feels it is impossible to select at random 10 ART cycles that do not result in a clinical pregnancy. Use the pie chart at the right and your knowledge of statistics to determine whether your manager is correct. **EXERCISES** 1. **How Would You Do It?** (a) How would you determine whether your manager is correct; that it is impossible to select at random 10 ART cycles that do not result in a clinical pregnancy? (b) Is the probability distribution you think best describes the situation? Do you think the distribution of the number of clinical pregnancies is discrete or continuous? Explain your reasoning. 2. **Answering the Question** Write an explanation that answers the question, “Is it possible to select at random 10 ART cycles that do not result in a clinical pregnancy?” Include in your explanation the appropriate probability distribution and your calculation of the probability of no clinical pregnancies in 10 ART cycles. 3. **Suspicious Samples?** A lab worker tells you that the samples below were selected at random. Using the graph at the right, which of the samples would you consider suspicious? Would you believe that the samples were selected at random? Explain your reasoning. (a) A sample of 10 ART cycles among women of age 40, eight of which resulted in clinical pregnancies. (b) A sample of 10 ART cycles among women of age 41, none of which resulted in clinical pregnancies. **Graphs and Diagrams Explanation** - The pie chart titled "Results of ART Cycles Using Fresh Nondonor Eggs or Embryos" shows: - Clinical pregnancy: 33.0% - Ectopic pregnancy: 0.6% - No pregnancy: 66.4% - The bar graph titled "Pregnancy and Live Birth Rates for ART Cycles Among Women of Age 40 and Older" illustrates: - Pregnancy rate and
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