Economics Homework Help

1. Use the Burgers stats 20 – 100 male&female survey Oct 5 2014 from the Public Groups

1.) Set up a 90% confidence interval for the true variance for COST (full sample)

2.) At the 1% level test the hypothesis that the true variance for COST is less than 6.

3.) At the 5% level test if the variances are equal for COST between Male and Female. Put female group in the numerator for sample one.

For parts 1 and 2 , use stat variance for one sample. For part 3, use two sample data and sort by male and female

2. Use the Burgers stats 20 – 100 male&female survey Oct 5 2014 from the Public Groups

1.) Compute a 99% confidence interval to see the difference in proportion choosing “cheese” burger between male and females.

You choose type of variable as burger for values, set success = cheese and then set : “Female or Male”= “Male”and “Female or Male”= “Female” for the where part .

2.) Perform a hypothesis test on the difference in proportion choosing “cheese” burger between male and female. Based on the p-values do you reject or fail to reject the null hypothesis at the 10% level?

https://www.statcrunch.com/app/index.php?dataid=12…