What is the closest integer to 105

Answer:

-105?

Step-by-step explanation:

The closest integer to [tex]105[/tex] should be [tex]104[/tex]!

An Integer is a number that cannot be a fraction nor a decimal. It can be - (Negative) or + (Positive).

A team of scientists are conducting research on the effect of word fonts used in road signs on accident rates. Across the population, there is an average of μ = 40 accidents per year due to unclear road sign fonts, with a standard deviation of σ = 10. The distribution is approximately normal. The team believes that certain fonts are difficult to read and may cause accidents, and it wants to implement a change to road sign fonts nationwide. The team is recommending a new font to replace the old fonts in road signs. After a series of studies, the team finds that the new font decreases accidents. However, the effect size is rather small (d = - 0.2). If the change to road sign fonts is implemented and there truly is an effect, it is expected that the new average rate of accidents will be: μ = 38 (i.e., hypothesized mean of the treatment group). In other words, this change should decrease accidents by 2, on average. [50 points total]

A.) Because implementing such large-scale changes is very costly, the government wants to be sure that the investment will be impactful. For a hypothesis test, they want the α-level to be small to minimize error. It is decided that α = 0.01, and a one-tailed test will be used. [50 points]

-What type of error is minimized by setting a stricter (smaller) α-level?

-With a one-tailed hypothesis test at α = 0.01, use the unit normal table to find the zscore that marks the critical region.

B.) A sample of n = 100 people are selected to go through a road trial with new fonts in the road signs. Again, the treatment is expected to decrease accidents by 2 on average. If the researchers use a one-tailed hypothesis test with α = 0.01, what is the power of the hypothesis test? [10 points]

C.)An external consultant is worried that there may not be enough power to detect such a small effect with such a small sample size. The consultant recommends that the researchers select a sample of n = 400 people instead. With this new sample size, and assuming a one-tailed hypothesis test with α = 0.01 again, what is the power of the hypothesis test?

D.)Based on your answers in 3(b) and 3(c), calculate the probability of making a Type II error in both cases and explain what the values mean.

E.) Explain how sample size influences power. Discuss what this means in terms of the conclusions you might make in hypothesis testing. (You can use your answers in 3(b) and 3(c) as an example.)

Label each point on the number line with the correct value.
Click each dot on the image to select an answer. Choices:
0.730.73
0.73
0, point, 73
0.6‾0.\overline{6}
0.
6

0, point, start overline, 6, end overline
78\dfrac{7}{8}
8

7
​

Giving a test to a group of students, the grades and gender are summarized below
A B C Total
Male 9 13 6 28
Female 20 19 2 41
Total 29 32 8 69
If one student is chosen at random, Find the probability that the student got a C: Correct Find the probability that the student was female AND got a "C": Correct Find the probability that the student was male OR got an "B": Correct If one student is chosen at random, find the probability that the student got a 'C' GIVEN they are female:______.

what is the value of the expression 4 2/5(-2.5)​

∠A
and ​
∠B
​ are vertical angles with
m∠A=x
and
m∠B=5x−80
.
What is
m∠A
?

Adam built a rectangular vegetable garden that has a length of 6.6 feet and a
with of 3 1 feet. What is the area of his garden?

2. Find the product of 2/7 x 5/6

A. 5/21
B. 7/42
C. 9/16
D. 10/13

3. Find (-4/6) (7/10)

A. -28/45
B. -14/25
C. -7/50
D. 17/50

An older person is 5 years older than six times the age of a younger person. The sum of their ages is 26. Find their ages.

Is three and five a factor pair of 15

Two less than four times a number is 6

Ms. Anguiano is enjoying a bicycle ride on a country road
that runs east to west past a haunted house. Define a
coordinate system (x-axis) so that increasing "x" means
moving east (POSITIVE). At noon, Ms. Anguiano is 6 miles
(mi) east of the haunted house. A half-hour later, she is
8 mi west of the haunted house. What is her
displacement ? HINT: EAST IS POSITIVE, WEST IS
NEGATIVE.

Write the equation of a line perpendicular to the line y = 2x - 3 that goes through point (4,3). Convert the line to Slope-Intercept Form.

Como puedo poner 2 3/5 en decimal​

Southern Florida has a mild climate.Which stat ment about the probability of snow in June in southern florida is most likely true ?

Find the linear function,
f
(
x
)
, passing through the points:
(
−
5
,
−
7
)
and
(
2
,
−
7
)
.
Enter your answer using function notation

Tara rolled the numbers shown. what is the greatest number she can make using each digit at once?

A coat is marked down 40% off the original price. If the original price was $115.00, what is the sale price of the coat before sales tax?

One less than a number, which is then divided by 5, is -7. What is the number?

Given the function f(x) = -4x + 2, what is the
value of f(3)?

What is the answers

6s-2t for s=2 and t=3

18)
An aquarium has 12 equal size tanks of fish on display. All together, the tanks hold 643.8 gallons of water. How much water can each tank hold?
A) 53.35
B) 53.65
Eliminate
C) 55.63
D) 56.53

I need help I have searched everywhere and nothing
industrial costs A power plant is located near a river, where the river is 800 ft wide. Running a cable from the plant to a location in the city, 2 miles (mi) downstream on the opposite side, costs $ 180 per ft across the river and $ 100 per ft ashore along the riverbank .

a) Suppose the cable runs from the plant to point Q, on the opposite side, which is x ft from point P, directly opposite the plant. Write a function C (x) that indicates the cost of laying the cable in terms of the distance x.

b) Generate a table of values ​​to determine if the cheapest location for point Q is less than 2000 ft or greater than 2000 ft from point P.

(Ignore that I selected an answer)

Can someone pls help me

HELP PLEASEEEEEEE WILL MARK YOU AS BRAINLEIST no guesses please!!!

PLEASE HELP ME

Jamie used a microscope to measure the diameter of a hair. She found that the diameter of the hair was 0.000072 meter. How is this number written in scientific notation?
A. 7.2 × 10−6
B. 7.2 × 105
C. 7.2 × 10−5
D. 7.2 × 106

when i was 18 years old, my sister was half my age. Now I am 82 years. How old is my sister now?​

In an assessment of the quality of the electrical power​ system, one measure of quality is the degree to which voltage fluctuations cause light flicker in the system. The perception of light flicker x when the system is set at 380kV was measured periodically​ (over 10-minute​ intervals). For transformers supplying heavy industry​ plants, suppose the light flicker distribution was found to follow​ (approximately) a normal distribution with ​% and . If the perception of light flicker exceeds ​%, the transformer is shut down and the system is reset. How likely is it for a transformer supplying a heavy industry plant to be shut down due to light​ flicker?

Determine the slope m and y-intercept (if possible) of the linear equation. (If the slope is undefined, enter UNDEFINED. Enter NONE if there is no y-intercept.) 5x − 4y − 20 = 0

The minimum z-score necessary to be in the top 20% of the diastolic blood pressure distribution is z = .

-6 - ___ = -1
Negative six minus blank equals negative one