Question

A shopping centre wants to examine the amount of space required for parking. Studies indicated that 50% of staff and shoppers use public transportation. A survey of 1002 was taken, and 483 responded that they used public transportation. At 5% level of significance, is it reasonable to conclude that the survey results indicate a change?

Answer 1

The survey result doesn't indicate the change

Explanation:

Previous study result is 50%

Survey result:

• 483/1002 = 0.482 = 48.2%

Comparing with previous result:

• 50% - 48.2% = 1.8% < 5%

Since this result is within 5% level of significance, it can be concluded that the survey result doesn't indicate the change