The file Restaurants contains the cost per meal and the ratings of 50 city and 50 suburban restaurants on their food, dcor and service (and their summated ratings). Completely analyze the difference between city and suburban restaurants for the variable food rating, dcor rating, service rating and cost per person using = 0.01, 0.05 and 0.10. (Please do it manually and not on excel using z test) Also, explain why do we use z test or t test in this.

Please find the link to the drive with the data -

https://drive.google.com/drive/folders/1tVddvDY6BUXGzcK7ToCriOPJlk8_eluD?usp=sharing