Identify which value represents the sample mean and which value represents the claimed population mean. a) American households spent an average of about $67 in 2007 on Halloween merchandise such as costumes, decorations and candy. To see if this number had changed, researchers conducted a new survey in 2008 before industry numbers were reported. The survey included 2100 households and found that average Halloween spending was $70 per household. The sample mean is ? while the claimed population mean is? b) The average GPA of students in 2001 at a private university was 3.58. A survey on a sample of 200 students from this university yielded an average GPA of 3.61 in Spring semester of 2012. The sample mean is and the claimed population mean is?

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Identify which value represents the sample mean and which value represents the claimed population mean.

a) American households spent an average of about $67 in 2007 on Halloween merchandise such as costumes, decorations and candy. To see if this number had changed, researchers conducted a new survey in 2008 before industry numbers were reported. The survey included 2100 households and found that average Halloween spending was $70 per household.
The sample mean is ?

while the claimed population mean is?

b) The average GPA of students in 2001 at a private university was 3.58. A survey on a sample of 200 students from this university yielded an average GPA of 3.61 in Spring semester of 2012.
The sample mean is and the claimed population mean is?

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