More info so i can answer
Answer:
dude if this is a whole test you shouldve studied for that not just ask people for the answer
Step-by-step explanation:
Answer:
<h2>x = -6</h2>
Step-by-step explanation:
Colder then -7.2 F would be -8.5 F
-7.2 > -8.5
anything to the left of -7.2 on the number line will be less then(oe in this case, colder then) -7.2....so -8.5 falls to the left of -7.2
Answer:
Option C
Step-by-step explanation:
n = 81
s2 = 625
H0: σ2 = 500
Ha: σ2 ≠ 500
Test Statistics X^2 = (n-1)s^2/ σ2 = (81-1)*625/500
X^2 = 100
P value = 0.0646 for degree of freedom = 81-1 = 80
And X^2 = 100
At 95% confidence interval
Alpha = 0.05 , p value = 0.0646
p < alpha, we will reject the null hypothesis
At 95% confidence, the null hypothesis
