4^2 is the correct answer
122/11= 11.09 or 11.1 depending on how you like to round numbers
Answer:
y = -⅓x - 9⅓
Step-by-step explanation:
-14 = -⅓[14] + b
-4⅔
-9⅓ = b
y = -⅓x - 9⅓
* Parallel lines have SIMILAR <em>RATE OF</em><em> </em><em>CHANGES</em><em> </em>[<em>SLOPES</em>], so -⅓ remains the way it is.
I am joyous to assist you anytime.
Answer:
There is insufficient evidence to conclude that the mean balance of accounts has decreased during this period
Step-by-step explanation:
We are given the following in the question:
Population mean, μ = $850
Sample mean,
= $790
Sample size, n = 55
Alpha, α = 0.01
Sample standard deviation, s = $200
First, we design the null and the alternate hypothesis
We use one-tailed t test to perform this hypothesis.
Formula:
Putting all the values, we have
Now,
Since,
We fail to reject the null hypothesis and accept the null hypothesis. There is insufficient evidence to conclude that the mean balance of accounts has decreased during this period.