Answer:
Step-by-step explanation:
Given that every day at noon, a bus leaves for Townville and travels at a speed of x kilometers per hour. Today, the bus left 30 minutes late.
If the driver drives 7/6 times as fast as usual, she will arrive in Townville at the regular time.
If correct time leaves then distance = time *speed
280 = t*x where t is the time in hours
Or t = 280/x
Now speed changes to 7x/6 while time changes to (t-1/2)
So 280 = (t-1/2) 7x/6
x = 80 km per hour
Answer:
$0.78 per tube
Step-by-step explanation:
18.72 divided by 24
What is equivalent to 9?
9/1 = 9
9/1 is equivalent to 9.
Answer: Reject 
if the confidence interval <u>does not</u> contain the value of the hypothesized mean 
.
Step-by-step explanation:
In the case of Confidence Intervals and Two-Tailed Hypothesis Tests,
Null hypothesis : 
[There is no change in mean.]
Alternative hypothesis: 
[There is some difference.]
Since confidence intervals contain the true population parameter ( mean).
So, Decision rule states that
- Reject if the confidence interval <u>does not </u>contain the value of the hypothesized mean .
- We do not reject if the confidence interval contains the value of the hypothesized mean .
4/5, or 80%, of the flowers are not tulips.
