Question
In: Math
Men at a construction site were moving concrete blocks from a truck, a short distance to...
Men at a construction site were moving concrete blocks from a truck, a short distance to the base of a house. The first day the average man moved 62 blocks per hour.
The current day the numbers were : 70,63,76,86,86,62,97,70,77,81
1. Assume all assumptions are met. Provide descriptive statistics for the sample.
2. Conduct a statistical test to assess if the men were able to move more than 62 blocks per hour.
3. The men had more rest than they did the first day and were certain they could move atleast 5 more blocks per hour. Conduct a statistical test to see if they were able to, on average, move 5 more plants per hour than the previous mark of 62
Solutions
milcah answered 8 months agoRelated Solutions
From Two Men and Truck to 220 Franchises and 1400 Trucks Two Men and a Truck...
From Two Men and Truck to 220 Franchises and 1400 Trucks Two Men
and a Truck operates in the _________, like nearly half of all
small businesses.
production industry
distribution industry
restaurant industry
service industry
finance industry
For Mary Ellen Sheets, founder of Two Men and a Truck, owning
and operating a small business provides many advantages. Which of
the following is NOT an advantage of small business ownership?
Simplified recordkeeping
Ability to adapt to change
Independence
Ability to raise...
A company manufactures concrete blocks for construction purposes. We know that the weights of the individual...
A company manufactures concrete blocks for construction
purposes. We know that the weights of the individual concrete
blocks are normally distributed with a mean value of 11 kg, and a
standard deviation of 0.3 kg.
The company can be 99% confident that the any randomly selected
concrete block has a weight within the interval
The probability that a concrete block weighs less than 10.5 kg
is
A construction company decided to purchase a concrete mixer truck for $85,000 with a trade-in of...
A construction company decided to purchase a concrete mixer
truck for $85,000 with a trade-in of their old mixer. The old mixer
has a trade-in value of $10,000. The new mixer will be kept for 10
years before being sold. Its estimated salvage value at that time
is expected to be $5,000. Assume interest to be 12%. Determine the
8th year BVB by Sinking Fund Method.
Strength of concrete: The compressive strength, in kilopascals, was measured for concrete blocks from five different...
Strength of concrete: The compressive strength, in kilopascals,
was measured for concrete blocks from five different batches of
concrete, both three and six after pouring. The data are as
follows. Can you conclude that the mean strength after three days
is less than the mean strength after six days? Let U1 represent the
mean strength after three days and ud=u1-u2, Use the a=0.01 level
and the critical value method with the table.
1. State the appropriate null and alternate hypotheses....
Strength of concrete: The compressive strength, in kilopascals, was measure for concrete blocks from five different...
Strength of concrete: The compressive strength, in kilopascals,
was measure for concrete blocks from five different batches of
concrete, both three and six days after pouring. The data are as
follows:
Block
1
2
3
4
5
After 3 days
1341
1316
1352
1355
1327
After 6 days
1376
1373
1366
1384
1358
Can you conclude that the mean
strength after three days differs from the mean strength after six
days? Use the α = 0.05 level of significance.
State...
SYDM: A construction company decided to purchase a concrete mixer truck for $75,000 with a trade-in...
SYDM: A construction company decided to purchase a concrete
mixer truck for $75,000 with a trade-in of their old mixer. The old
mixer has a trade-in value of $7,000. The new mixer will be kept
for 15 years before being sold. Its estimated salvage value at that
time is expected to be $5,000. Assume interest to be 12%. Determine
the 9th year BVB by Sum of Years Digit Method.
There are two ways for a concrete truck to go from a ready-mixed concrete plant to...
There are two ways for a concrete truck to go from a ready-mixed
concrete plant to the construction site. The first way is direct,
for which the mean and standard deviation of travel time are 30 min
and 5 min, respectively. The second way is through Town A. The mean
and standard deviation of travel time between the plant and Town A
are 14 min and 5 min, respectively. The mean and standard deviation
of travel time between Town A...
There are two ways for a concrete truck to go from a ready-mixed concrete plant to...
There are two ways for a concrete truck to go from a ready-mixed
concrete plant to the construction site. The first way is direct,
for which the mean and standard deviation of travel time are 30 min
and 5 min, respectively. The second way is through Town A. The mean
and standard deviation of travel time between the plant and Town A
are 14 min and 5 min, respectively. The mean and standard deviation
of travel time between Town A...
There are two ways for a concrete truck to go from a ready-mixed concrete plant to...
There are two ways for a concrete truck to go from a ready-mixed
concrete plant to the construction site. The first way is direct,
for which the mean and standard deviation of travel time are 30 min
and 5 min, respectively. The second way is through Town A. The mean
and standard deviation of travel time between the plant and Town A
are 14 min and 5 min, respectively. The mean and standard deviation
of travel time between Town A...
Copper Explorations recently acquired the rights to mine a new site. Equipment and a truck were...
Copper Explorations
recently acquired the rights to mine a new site. Equipment and a
truck were purchased to begin mining operations at the site.
Details of the mining assets follow:
Asset
Date of
Purchase
Cost
Est.
Residual
Est. Life
Mineral
rights
Mar. 1/20
$
96,000
$
0
4 yrs
Equipment
Mar. 1/20
283,800
0
4 yrs
Truck
Mar. 1/20
134,400
0
4 yrs
Copper's year-end is December 31 and it uses the straight-line
method for all mining assets including intangibles....
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