how do you find the p value and test statistic

A wellknown brokerage rm executive claimed that 70% of investors are currently condent of meeting their investment goals. An XYZ Investor Optimism Survey, conducted over a two week period, found that in a sample of 300 people, 68% of them said they are condent of meeting their goals. Test the claim that the proportion of people who are condent is smaller than 70% at the 0.05 signicance level. The null and alternative hypothesis would be: H0: 19 : 0.7 He: p2 0.7 : 0.7 H1 1:10 % 0 7 H1: p07Hp_07 C) L") C) The test is: two-tailed right-tailed left-tailed C) L) C) The test statistic is: l l (to 3 decimals) . , The pvalue is: l l (to 4