Test the null hypothesis that the proportion of econ students who approve of Obama's performance is greater than or equal to.4 using a.05 significance level. A sample of 20 econ students has 5 who approval of Obama's performance.

ATTENTION!!!!!!!!!!!!! THERE IS THREE PROBLEMS MOST OF THEM I HAVE DONE BUT IM HAVING TROUBLE FIGURING OUT THE REST SO PLEASE HELP! Treasury Stock Transactions Below are the stock transactions of Seoul Company during 2014: Oct. 1 Purchased 1,600 shares of its own $2 par value common stock for $20 per share, the current market price. 17 Sold 420 shares of treasury stock purchased on October 1 for $25 per share. 21 Sold 800 shares of treasury stock purchased on October 1 for $18 per share. Treasury Stock Transactions The following stock transactions of DeMeo Corporation represent all of the company's treasury stock transactions during 2014: May 5 Purchased 800 shares of its own $2 par value common stock for $20.8 per share, the current market price. 17 Sold 400 shares of treasury stock purchased on May 5 for $22 per share. 21 Sold 200 shares of treasury stock purchased on May 5 for $20 per share. 28 Sold the remaining 200 shares of treasury stock purchased on May 5 for $19 per share. Record DeMeo Corporation's stock transactions using T accounts. If an amount is zero, enter "0". Treasury Stock Transactions Including Retirement The following stock transactions of Carmel Corporation represent all its treasury stock transactions for the year: June 1 Purchased 1,000 shares of its own $30 par value common stock for $70 per share, the current market price. 10 Sold 250 shares of treasury stock purchased on June 1 for $80 per share. 20 Sold 350 shares of treasury stock purchased on June 1 for $58 per share. 30 Retired the remaining shares purchased on June 1. The original issue price was $42 per share. Record Carmel Corporation's stock transactions using T accounts. If an amount is zero, enter "0". 3 [3] . Test the null hypothesis that the proportion of eeon students who approve of Obama's performance is greater than or equal to .4 using a .05 signieanee level. A sample of 20 eeon students has 5 who approval of Ohama's performance