Question
In: Statistics and Probability
The mean area of homes in a certain city built in 2009 was 2438 square feet....
The mean area of homes in a certain city built in 2009 was 2438 square feet. Assume that a simple random sample of 11 homes in the same city in 2010 had a mean area of 2,295 squarefeet, with a deviation of 225 square feet. An insurance company wants to know if the mean area of homes built in 2010 is less than that of homes built in 2009.
Solutions
orchestra answered 2 years agoRelated Solutions
The mean area of homes in a certain city built in 2009 was 2438 square feet....
The mean area of homes in a certain city built in 2009 was 2438
square feet. Assume that a simple random sample of 11 homes in the
same city built in 2010 had a mean area of 2,297 square feet, with
a standard deviation of 225 square feet. An insurance company wants
to know if the mean area of homes built in 2010 is less than that
of homes built in 2009. Compute the P-value of the
test.
Write down...
A rectangular swimming pool is to be built with an area of 1800 square feet. The...
A rectangular swimming pool is to be built with an area of 1800
square feet. The owner wants 5-foot-wide decks on either side and
10-foot-wide decks at the two ends. Find the area (in sq. feet) of
the smallest piece of property on which the pool can be built
satisfying these conditions.
Given:
xy=1800
If the area of a square is 25 square feet, calculate the perimeter of the
If the area of a square is 25 square feet, calculate the perimeter of the square. Enter the value for the perimeter in the first blank and enter the units in the second. Enter units as ft. or square ft. Round your final answer to tenths if rounding is necessary ?
The area of a square is increasing at a rate of 2 square feet per minute....
The
area of a square is increasing at a rate of 2 square feet per
minute. How fast is the perimeter changing in feet per minute when
the area of the square is 64 square feet?
The area of a particular rectangle is 12 times the area of a certain square, and...
The area of a particular rectangle is 12 times the area of a
certain square, and the width of the rectangle is three times the
length of a side of the square. The perimeter of the rectangle is
30 units greater than the perimeter of the square. Find the
dimensiuons of both the rectangle and the square.
Descriptive Statistic Price Living Area (Square Feet) Number of Bedrooms Number of Bathrooms Age (Years) Mean...
Descriptive Statistic
Price
Living Area (Square Feet)
Number of Bedrooms
Number of Bathrooms
Age (Years)
Mean
160695.775
1733.874
3.136
1.8805
27.871
Standard Error
2132.773719
17.45410352
0.022891658
0.019322088
1.012996802
Median
148829.5
1656
3
2
18
Mode
139079
1480
3
2.5
1
Standard Deviation
67444.22686
551.9472165
0.723897802
0.611018079
32.03377158
Sample Variance
4548723737
304645.7299
0.524028028
0.373343093
1026.162522
Kurtosis
3.889356216
-0.420418335
-0.363359978
-1.004482917
5.291745807
Skewness
1.371395188
0.478357102
0.010298402
0.018867528
2.173487195
Range
552807
2785
4
3
208
Minimum
26049
672
1
1
0
Maximum
578856...
A rectangular garden of area 50 square feet is to be surrounded on three sides by...
A rectangular garden of area 50 square feet is to be surrounded
on three sides by a fence costing $2 per running foot and on one
side by a brick wall costing $6 per running foot. Let x be the
length of the brick wall side. Which of the following represents
the total cost of the material?
Homes in a certain town have a mean value of $88,950. It is assumed that homes...
Homes in a certain town have a mean value of $88,950. It is
assumed that homes in the vicinity of the school have a higher
value. A sample of 12 homes near the school is selected and it
appears as if the population is normal. Their mean value is $92,460
with a standard deviation of $5200. Can we prove with 95% certainty
that homes near the school do indeed have a higher value?
A gardener wants to enclose a rectangular garden with area 1200 square feet. Along theback and...
A gardener wants to enclose a rectangular garden with area 1200
square feet. Along theback and two sides of the garden, she wants
to use fencing that costs$4 per foot. Alongthe front side of the
garden, she wants to use a fancier fencing that costs$8 per
foot.What dimensions should she make the garden in order to
minimize the cost of fencing?What would be the minimum cost for the
fence for a garden with these dimensions?[First draw a diagram
illustrating the...
A Real Estate Company has 20 listings for homes in a certain city. The number of...
A Real Estate Company has 20 listings for homes in a certain
city. The number of days each house has been on the market without
selling is shown in the accompanying table. Complete parts a
through c below.
37
83
28
21
12
57
39
52
35
107
45
34
12
70
103
86
37
63
60
18
a. Considering these 20 values to be the population of
interest, what is the mean of the population?The population mean
is days....
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