subject

Mathematics, 10.11.2020 01:00 TombRaider167

Problem 2. The number of violent crimes committed in a day possesses a distribution with a mean of 2.8 crimes per day and a standard deviation of 4 crimes per day. A
random sample of 100 days was observed, and the sample mean number of crimes for
the sample was calculated. Describe the sampling distribution of the sample means. (5
points)
a.
shape unknown with mean of 2.8 and a standard deviation of 0.4
b.) approximately normal with mean of 2.8 and standard deviation of 4
c.) shape unknown with mean of 2.8 and standard deviation of 4
d.) approximately normal with mean of 2.8 and standard deviation of 0.4

ansver

Answers: 3

Show answers

Another question on Mathematics

question

Mathematics, 21.06.2019 17:50

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

Answers: 1

question

Mathematics, 21.06.2019 19:30

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?

Answers: 2

question

Mathematics, 21.06.2019 21:30

The map shows the location of the airport and a warehouse in a city. though not displayed on the map, there is also a factory 112 miles due north of the warehouse.a truck traveled from the warehouse to the airport and then to the factory. what is the total number of miles the truck traveled?

Answers: 3

question

Mathematics, 21.06.2019 22:00

Rick is driving to his uncles house in greenville,which is 120 miles from ricks town .after covering x miles rick she's a sign stating that greensville is 20 miles away. which equation when solved will give the value of x. a: x+120 = 20 b: x x120 =20 c: x +20 equals 120 d: x x20= 120

Answers: 3

You know the right answer?

Problem 2. The number of violent crimes committed in a day possesses a distribution with a mean of...

Questions

question

Social Studies, 18.12.2019 21:31

Mrs. wright uses learning centers as part of the curriculum for her first-grade class. she uses this time to allow students to work cooperatively, pro...

question

Business, 18.12.2019 21:31

Watchful eyes industries manufactures a multitude of safety products like burglar alarms, smoke detectors, surveillance cameras, and specialty locks....

question

Biology, 18.12.2019 21:31

Why does the speed of a sound wave increase as it moves into deep water? a. because sound waves travel faster as water temperature decrea...

question

Business, 18.12.2019 21:31

Old town industries has three divisions. division x has been in existence the longest and has the most stable sales. division y has been in existence...

question

Biology, 18.12.2019 21:31

Apair-rule gene in drosophila called runt controls nervous system formation. in the mouse, runt controls blood cell formation and genital structures....

question

Engineering, 18.12.2019 21:31

Water at 70°f ﬂows by gravity from a large reservoir at a high elevation to a smaller one through a 90-ft-long. 2-in-diameter cast iron piping system...

question

Business, 18.12.2019 21:31

Walters audio visual inc. offers an incentive stock option plan to its regional managers. on january 1, 2018, options were granted for 40 million $1 p...

question

Business, 18.12.2019 21:31

Wayne’s notes include details that pertain to the characteristics of useful information. his notes about there being a different customer base at the...

question

Business, 18.12.2019 21:31

Emma, frick, glenda, and huey are employees of different-sized employers in different industries. a minimum wage must be paid to employees in:...

question

Engineering, 18.12.2019 21:31

Water flows through a horizontal 60-mm-diameter galvanized iron pipe at a rate of 0.02 m 3/s. if the pressure drop is 135 kpa per 10 m of pipe, do you...

question

Mathematics, 18.12.2019 21:31

The author drilled a hole in a die and filled it with a lead weight, then proceeded to roll it 200 times. here are the observed frequencies for the ou...

question

Physics, 18.12.2019 21:31

We know that the current in the circuit is growing. it will approach a steady state after a long time (as t tends to infinity), which implies that the...

question

Engineering, 18.12.2019 21:31

Water at 15°c (rho = 999.1 kg/m3 and μ = 1.138 × 10−3 kg/m·s) is flowing steadily in a 28-m-long and 6-cm-diameter horizontal pipe made of stainless s...

question

Mathematics, 18.12.2019 21:31

Wei is standing in wavy water and notices the depth of the waves varies in a periodic way that can be modeled by a trigonometric function....

question

Engineering, 18.12.2019 21:31

Water is drawn into the pump, such that the pressure at the inlet a is 35 kpa and the pressure at b is 120 kpa. if the discharge at b is 0.08 m3/s, de...

question

Mathematics, 18.12.2019 21:31

B. one of the surveyors measured ae = 18 meters, ab = 38 meters, and bd = 6 meters. the surveyor then used similar triangles to find bc. f...

question

Computers and Technology, 18.12.2019 21:31

We want to update the value of register st0 to "oxff". fill in the blanks to demonstrate the use of immediate, register, and indexed addressing modes....

question

Engineering, 18.12.2019 21:31

Water flowing in a horizontal 25-cm-diameter pipe at 9 m/s and 300 kpa gage enters a 90° bend reducing section, which connects to a 15-cm-diameter ver...

question

Mathematics, 18.12.2019 21:31

We now have lim x → [infinity] (4x − ln(x)) = lim x → [infinity] 4x 1 − ln(x) 4x . let's first focus on lim x → [infinity] ln(x) 4x . since ln(x) → [i...

question

Business, 18.12.2019 21:31

We are interested in determining whether or not the variances of the sales at two music stores (a and b) are equal. a sample of 26 days of sales at st...

More questions: Mathematics Another questions

Questions on the website: 13722367