Answer:
Step-by-step explanation:
In the past, mean of age of employees
i.e. 
Recently sample was taken
n = sample size = 60
Mean of sample = 45
Std dev of sample s = 16
(Right tailed test)
Since only population std deviation is known we can use t test only
Std error = 
Mean difference = 45-40 =5
Test statistic t=
df = 60
p value =0.008739
Since p < 0.05 we reject null hypothesis
The mean age has increased.
They are all vertical angles.
I have a savings accout wit four dollars in it
Answer:
0.6 inches or 6/10 also simplified to 3/5
Step-by-step explanation:
kiss
You see how when you count inches on a certain ruler like this, That it counts by 0.1 inches. Use your finger and count by 0.1 inches from the start to end of the jellybean
Answer:
h < 2
Step-by-step explanation:
Step 1: Distribute
10h + 40 < 60
Step 2: Subtract 40 on both sides
10h < 20
Step 3: Divide both sides by 10
h < 2
