State the number of tweets from Michigan on Thursdays.
"Michigan" is the State; 'Thursday' is the Weekday; number of tweets refers to Count(TweetID)
SELECT COUNT(T1.TweetID) FROM twitter AS T1 INNER JOIN location AS T2 ON T2.LocationID = T1.LocationID WHERE T1.Weekday = 'Thursday' AND T2.State = 'Michigan'