Answer:
99% confidence interval bto estimate the average price customers are willing to pay per phone is between a lower limit of $471.356 and an upper limit of $514.
Step-by-step explanation:
Confidence interval = mean + or - Error margin (E)
mean = $492.678
sd = $26.4871
n = 14
degree of freedom = n - 1 = 14 - 1 = 13
confidence level = 99%
t-value corresponding to 13 degrees of freedom and 99% confidence level is 3.012
E = t×sd/√n = 3.012 × $26.4871/√14 = $21.322
Lower limit = mean - E = $492.678 - $21.322 = $471.356
Upper limit = mean + E = $492.678 + $21.322 = $514
99% confidence interval to estimate the average price customers are willing to pay per phone is between $471.356 and $514.
You paint 1313 of a wall in 1414 hour.
Now we need to find the rate in order you to paint one wall.
1313 : 1414 = 1 : X
1414 = 1313 X
X = 1.08
<span>So the rate per one wall is 1.08 hours.</span>
Answer:
Is this two different lines or is that what goes first?
Step-by-step explanation:
In an arithmetic sequence, you add or subtract a fixed amount called the common difference to be able to get the next term in the sequence.
The first step in solving an arithmetic sequence containing fractions, you subtract the first term from the second term to get the common difference.Then using this common difference you find the nth term asked.
Answer:(3/25)
Step-by-step explanation: just had this question