The head of public safety notices that the average driving speed at a particular intersection averages 35 mph with a standard deviation of 7.5 mph. After a school speed limit sign of 20 mph is placed at the intersection, the first 40 cars travel past at an average speed of 32 mph. Using the .01 alpha level, was there a significant change in driving speed? use the four steps hypothesis​

Curriculum exam . 1 to reconcile your daily scanned checks (irds and personal checks) in the transaction report builder: o a. select today's date, select processed for the transaction status and change the account type to checking; click run report. o b. select today's date, select processed for the transaction status and change the origin of transaction to back office; click run report. o c. select today's date, select approved for the transaction status and change the origin of transaction to mailed in; click run report. o d. select the previous day's date, select approved for transaction status and change the origin of transaction to internet; click run report.

Scientists observed a rock stratum with fossil. if mollusks evolved before arthropod, where will their fossils be found.

An example of a fine motor skill is