According to a study on the effects of smoking by pregnant women on rates of asthma in their children, for expectant mothers who smoke 20 cigarettes per day, 22.2% of their children developed asthma by the age of two in the US. A biology professor at a university would like to test if the percentage is less in another country. She randomly selects 322 women who only deliver one child and smoke 20 cigarettes per day during pregnancy in that country and finds that 80 of the children developed asthma by the age of two. In this hypothesis test, Do the hypothesis test. Use a level of significance of a = 0.05; Use the unrounded values in Excel to find the answers for #3 and #4. 1. This is an example of a hypothesis test. 2. Find the standard error. 3. Find the z value.

MATLAB: An Introduction with Applications
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According to a study on the effects of smoking by pregnant women on rates of asthma in their children, for expectant mothers who smoke 20 cigarettes per day, 22.2% of their children developed asthma by the age of two in the US. A biology professor at a university would like to test if the percentage is less in another country. She randomly selects 322 women who only deliver one child and smoke 20 cigarettes per day during pregnancy in that country and finds that 80 of the children developed asthma by the age of two. In this hypothesis test,

Do the hypothesis test. Use a level of significance of α = 0.05;

Use the unrounded values in Excel to find the answers for #3 and #4.

1. This is an example of a ____ hypothesis test.
2. Find the standard error. ____
3. Find the z value. ____
Transcribed Image Text:According to a study on the effects of smoking by pregnant women on rates of asthma in their children, for expectant mothers who smoke 20 cigarettes per day, 22.2% of their children developed asthma by the age of two in the US. A biology professor at a university would like to test if the percentage is less in another country. She randomly selects 322 women who only deliver one child and smoke 20 cigarettes per day during pregnancy in that country and finds that 80 of the children developed asthma by the age of two. In this hypothesis test, Do the hypothesis test. Use a level of significance of α = 0.05; Use the unrounded values in Excel to find the answers for #3 and #4. 1. This is an example of a ____ hypothesis test. 2. Find the standard error. ____ 3. Find the z value. ____
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