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?
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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