In 1996, 70% of the PCs in the United States used Intel chips. Intel's marketing department wishes to test whether their market share has increased, that is, whether the proportion of PCs using Intel chips is higher than the 1996 level. They inspected a sample of 400 new PCs (selected at random) and found that 296 of them used Intel chips. a.) The p-value for the appropriate hypothesis test is

b.) The correct decision at a 5% level of significance would be to

do not reject the null hypothesis

reject the null hypothesis

do not reject the alternate hypothesis

accept the null hypothesis