The answer is C for me! hope this helps good luck.
Answer:
Step-by-step explanation:
The hypothesis is written as follows
For the null hypothesis,
µd ≤ 10
For the alternative hypothesis,
µ > 10
This is a right tailed test
Since no population standard deviation is given, the distribution is a student's t.
Since n = 97
Degrees of freedom, df = n - 1 = 97 - 1 = 96
t = (x - µ)/(s/√n)
Where
x = sample mean = 8.9
µ = population mean = 10
s = samples standard deviation = 3.6
t = (8.9 - 10)/(3.6/√97) = - 3
We would determine the p value using the t test calculator. It becomes
p = 0.00172
Since alpha, 0.01 > than the p value, 0.00172, then we would reject the null hypothesis. Therefore, At a 1% level of significance, there is enough evidence that the data do not support the vendor’s claim.
D. 1 3/4 min
When you go on a Ferris wheel you go up then down in a circular motion.
Answer:
12 units
Step-by-step explanation:
From the given figure, it can be seen that AB=BC, thus
From ΔBEC, using the Pythagoras theorem, we have
Now, from ΔABE, using the Pythagoras theorem, we have
Thus, the measure of AE is 12 units.
One side of the square is 15 cause 15 times 15=225
