False alarm: The numbers of false fire alarms were counted each month at a number of sites. The results are given in the following table. Month Number of Alarms January 32 February 15 March 37 38 April May 45 June 48 July August 46 42 September 34 October 36 November 28 December 26 Source: Journal of Architectural Engineering 5:62-65 Test the hypothesis that false alarms are equally likely to occur in any month. Use the a = 0.01 level of

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### False Alarm Analysis

**Introduction:**
The data below represents the number of false fire alarms recorded each month at several sites.

**Data Table:**

| Month      | Number of Alarms |
|------------|------------------|
| January    | 32               |
| February   | 15               |
| March      | 37               |
| April      | 38               |
| May        | 45               |
| June       | 48               |
| July       | 46               |
| August     | 42               |
| September  | 34               |
| October    | 36               |
| November   | 28               |
| December   | 26               |

**Source:**
Journal of Architectural Engineering 5:62–65

**Hypothesis Testing:**
Evaluate the hypothesis that false alarms are equally probable in any given month using a significance level (\(\alpha\)) of 0.01.
Transcribed Image Text:### False Alarm Analysis **Introduction:** The data below represents the number of false fire alarms recorded each month at several sites. **Data Table:** | Month | Number of Alarms | |------------|------------------| | January | 32 | | February | 15 | | March | 37 | | April | 38 | | May | 45 | | June | 48 | | July | 46 | | August | 42 | | September | 34 | | October | 36 | | November | 28 | | December | 26 | **Source:** Journal of Architectural Engineering 5:62–65 **Hypothesis Testing:** Evaluate the hypothesis that false alarms are equally probable in any given month using a significance level (\(\alpha\)) of 0.01.
**Crime Rates**

The FBI computed the proportion of violent crimes in the United States falling into each of four categories. A simple random sample of 500 violent crimes committed in California was categorized similarly. The table below presents the results:

| Category            | U.S. Proportion | California Frequency |
|---------------------|-----------------|----------------------|
| Murder              | 0.013           | 5                    |
| Forcible Rape       | 0.051           | 23                   |
| Robbery             | 0.360           | 206                  |
| Aggravated Assault  | 0.576           | 266                  |

Can you conclude that the proportions of crimes in the various categories in California differ from the United States as a whole? Use the 0.05 level of significance.
Transcribed Image Text:**Crime Rates** The FBI computed the proportion of violent crimes in the United States falling into each of four categories. A simple random sample of 500 violent crimes committed in California was categorized similarly. The table below presents the results: | Category | U.S. Proportion | California Frequency | |---------------------|-----------------|----------------------| | Murder | 0.013 | 5 | | Forcible Rape | 0.051 | 23 | | Robbery | 0.360 | 206 | | Aggravated Assault | 0.576 | 266 | Can you conclude that the proportions of crimes in the various categories in California differ from the United States as a whole? Use the 0.05 level of significance.
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