Question

A stadium manager is interested in whether the fans that buy tickets are demographically the same as the general population of the city. Currently 42% are Caucasian, 35% are Hispanic, 12% are African American, 8% are Asian, and the rest are defined as other.

Is there an association between a college student’s level of drinking alcohol (classified as none, some, or considerable) and her/his residence situation (classified as living on-campus, off-campus with parents, or off-campus but not with parents)?

A researcher used data from the American Time Use Survey (ATUS) to investigate whether high school math teachers spend more time working per day than high school history teachers.

Is the percentage of all males who watch Walking Dead at COC larger than that of females?

Researchers are trying to determine if the Atkins diet was effective by measuring adult’s BMI before the diet, and then after being on the diet for 3 weeks.

For each of the following research questions match the appropriate statistical inference procedure for investigating the question. Answers may be used more than once.

Bon Air Elementary School has 1000 students. The principal of the school thinks that the average IQ of students at Bon Air is at least 110.

Answers: Chi Square Goodness of Fit (GOF)            Chi-square procedures for two-way tables            ANOVA procedures            Two-sample t-procedures for comparing means            One-sample t-procedures for a mean            Two-sample z-procedures for comparing proportions            One-sample z-procedures for a proportion            Paired-sample t-procedures      

Answer 1

A stadium manager is interested in whether the fans that buy tickets are demographically the same as the general population of the city. Currently 42% are Caucasian, 35% are Hispanic, 12% are African American, 8% are Asian, and the rest are defined as other.

Chi Square Goodness of Fit (GOF)  

Is there an association between a college student’s level of drinking alcohol (classified as none, some, or considerable) and her/his residence situation (classified as living on-campus, off-campus with parents, or off-campus but not with parents)

Chi-square procedures for two-way tables

A researcher used data from the American Time Use Survey (ATUS) to investigate whether high school math teachers spend more time working per day than high school history teachers.

Two-sample t-procedures for comparing means

Is the percentage of all males who watch Walking Dead at COC larger than that of females?

Two-sample z-procedures for comparing proportions

Researchers are trying to determine if the Atkins diet was effective by measuring adult’s BMI before the diet, and then after being on the diet for 3 weeks.

Paired-sample t-procedures

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