Poll finds that 54% of the 600 people polled favor the incumbent. shortly after the poll is taken, it is disclosed that he had an extramarital affair. a new poll finds that 50% of the 1030 polled now favor the incumbent. we want to know if his support has decreased. the test statistic is a. z = -2.57. b. z = 1.56. c. z = -1.55.

A. z = -2.57

Step-by-step explanation:

Let p be the population proportion of people polled favor the incumbent.

As per given , we have

Sample size : n= 1030

sample proportion :  

Test statistic for proportion :

Hence, the  test statistic is z = -2.57 .

Thus , the correct answer is A. z = -2.57 .

x = 25/2304

step-by-step explanation:

answer: the 4 kilogram bag

step-by-step explanation: this is because if you divide the number of kilograms into the total it will tell you how much each individual kilogram would be worth. 2 kilos is 7 and change 3 would be around 6 ish and the 4 kilo would be 4.6 and change and the 5 kilos would be like 4.88