From the data available, it is observed that $540$ out of $900$ customers purchased the groceries online. We want to validate at $95\%$ confidence whether most of the customers are moving towards online shopping even for groceries? In this case, the null hypothesis is that the proportion of customers purchasing online is $...0\mathrm{.}5.$ Since the calculated $z$ statistic is $....$ while the critical value of the $z$ statistic is Therefore, the null hypothesis is $......$

a$.,6\mathrm{.}12,1\mathrm{.}65$

b

c

d$.,8\mathrm{.}12,1\mathrm{.}96$

lear my choice