hypothesis testing

Difficulty: Easy Problem Description - 1 / 1 Correct answer: +6 Incorrect answer: 0 A city council has to decide if it needs to increase the spending on the infrastructure in order to reduce traffic on the city streets. The council decides that it will increase the transportation budget (to be spent on improving infrastructure) only if the amount of waiting time for drivers exceeds 20 minutes. The sample of 32 roads is collected and the data shows that the mean waiting time is 22.08 minutes with a standard deviation of 5.42 minutes. Assuming that the population data for the waiting time is normally distributed, conduct a hypothesis test and answer the two questions that follow: 1. Should the city council increase its transportation budget assuming the critical z-score value to be 2.05? 2. Should the city council increase its transportation budget assuming the critical z-score value to be 2.30? Text Editor Start typing here! Click Save to save the changes