In a 2019 Quinnipiac University poll of registered voters, 52% oppose making all US public colleges free. The Glangariff Group in Michigan collected data from 600 voters, where 342 support a taxpayer-funded free college program. Calculate the value of the test statistic.

The answer is

2.451

Step-by-step explanation:

52% oppose making all US colleges free

Total population n = 600

X = 342 people who supports taxpayer funded free college

P = 0.52

N = 600

P^ = x/n

= 342/600

= 0.57

Test statistic

Z = ^p-p/√p(1-p)/n

Z= 0.57-0.52/√0.52(1-0.52)/600

Z = 0.05/√0.000416

Z = 0.05/0.020496

Z = 2.451 or 2.45

That is the value of the test statistic.

y = 0.77(x)

step-by-step explanation:

the jacket retains this value after 23% cut or retains 77% of original value. plug original 87 jacket price for x and the remaining value should be y.

77

step-by-step explanation: