At the start of the COVID-19 pandemic in March 2020, Americans stocked up on goods that they thought might experience shortages. The one product that everyone seemed to buy was toilet paper. A mathematician did a quick calculation and concluded that the average household would have more than 30 rolls of toilet paper on hand. To test the claim, a random sample of households was polled and asked to report their inventory. 

Using the information provided, answer the following questions.

 Questions 1. 

Assuming the population standard deviation is 6, is there sufficient evidence at the 10% significance level to confirm the claim?

What assumption must you make to answer ?

Answer rating: 100% (QA)

To answer this question we will perform a hypothesis test Lets assume that the null hypothesis is th... View the full answer