I think it’s most likely the second :)
Answer:
Step-by-step explanation:
Let X be the average of tennis balls.
mu = 55.4 inches
Hypotheses:
H_0: x bar = 55.4\\
H_a: x bar \neq 55.4
(Two tailed test at 10% significance level)
n = 25: x bar = 56.6 and s = 0.25
STd error =s/sqrt 25 = 0.05
Mean diff = 56.6-55.4 = 1.2"
t statistic = 1.2/0.05 = 24
df= 24
t critical value = ±1.318
Since t statistic lies outside this we reject null hypothesis
The company does not manufacture acceptable tennis balls and this is evidence at 90% confidence interval
Mountain bike trials also it <span>is a discipline of mountain </span>biking<span> that the rider attempts to pass through an obstacle course without setting foot to ground.</span>
Ok so you want to do
44=x/4
multiply both sides by 4
176=x
so the fraction is 176/4