Write the equation of the line in fully simplified slope-intercept form?
2 answers:
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Answer:
(30.09, 32.91)
Step-by-step explanation:
Mean number of pounds of trash = x = 31.5 pounds
Standard deviation = s = 7.8 pounds
Sample size = n = 120
Confidence level = 95%
Since, we are given the sample standard deviation instead of the population standard deviation, we will use t-test to find the confidence interval.
Degrees of freedom = df = n - 1 = 120 - 1 = 119
The t-value associated with 95% confidence interval and df=119 from the t-table comes out to be:
t = 1.98
The formula to calculate the confidence interval is:
Using the values in above expression we get:
Thus, the 95% confidence interval for the mean number of lbs of trash per person per week that is generated in the city is (30.09, 32.91)
Answer:
For width = 2 ft, the length of the flower bed = 10 ft.
For width = 3 ft, the length of the flower bed = 9.5 ft.
For width = 4 ft, the length of the flower bed = 9 ft.
Step-by-step explanation:
Here, the Perimeter of the flower garden is given as
22 = 2 y + x
: where, y : Length of the garden
and x : Width of the garden .
Now, solving for y in the above expression,we get
22 = 2 y + x ⇒ 22 - x = 2 y
or,
Now, <u>when the width (x) = 2 feet</u>
Length of the flower bed
or, x = 10 ft
⇒For, the width = 2 ft, the length of the flower bed = 10 ft.
<u>when the width (x) = 3 feet</u>
Length of the flower bed
or, x = 9.5 ft
⇒For, the width = 3 ft, the length of the flower bed = 9.5 ft.
<u>when the width (x) = 4 feet</u>
Length of the flower bed
or, x = 9 ft
⇒For, the width = 4 ft, the length of the flower bed = 9 ft.