Question: Significance testing Significance Testing: 11 points each 25. In a report issued in February 2001, Minnesota had the highest percentage of latch-key children aged 6-9.

Significance testing

Significance Testing: 11 points each 25. In a report issued in February 2001, Minnesota had the highest percentage of latch-key children aged 6-9. Approximately 20% of all children in this age group were left to care for themselves after school while their parents were at work. In 2003, a simple random sample of 175 children aged 6-9 was obtained and 23 were latch-key kids. Use this information to determine if the true proportion of latch-key children in Minnesota has decreased. Include all five steps of a significance test with a=0.05

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