Answer:
a) The test statistic is [tex]z = -2.51[/tex]
b) The pvalue is 0.0060.
Step-by-step explanation:
Question a:
Ha: pB < pNY
This means that the alternate hypothesis is rewritten as:
[tex]H_a: p_{B} - p_{NY} < 0[/tex]
While the null hypothesis is:
[tex]H_0: p_{B} - p_{NY} = 0[/tex]
The test statistic is:
[tex]z = \frac{X - \mu}{s}[/tex]
In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis and s is the standard error
pB = 0.581, pNY = 0.832
This means that [tex]X = 0.581 - 0.832 = -0.251[/tex]
0 is tested at the null hypothesis:
This means that [tex]\mu = 0[/tex]
Standard error = 0.1
This means that [tex]s = 0.1[/tex]
Test statistic:
[tex]z = \frac{X - \mu}{s}[/tex]
[tex]z = \frac{-0.251 - 0}{0.1}[/tex]
[tex]z = -2.51[/tex]
The test statistic is [tex]z = -2.51[/tex]
Question b:
The pvalue is the probability of finding a proportion less than -0.251, that is, a difference of at least 0.251, which is the pvalue of Z = -2.51.
Looking at the z-table, Z = -2.51 has a pvalue of 0.0060
The pvalue is 0.0060.
It’s not 15 read the text
Answer:
B
Step-by-step explanation:
I think it is B because 6 times 5 = 30. So 30 times 1/2 = 60 hope this is correct and it helped and if it is not correct try C and can i get a brainliest
2.please I need help
9514 1404 393
Answer:
48°60°72°Step-by-step explanation:
The sum of ratio units is 4+5+6 = 15, so each unit stands for 180°/15 = 12°. Multiplying the ratio units by 12° gives the angle values:
4×12° : 5×12° : 6×12° = 48° : 60° : 72°
Angles 1 to 3 are 48°, 60°, 72°, respectively.
no links and respond with an explanation please.
Answer:
2b+1j=?
Step-by-step explanation:
2b represent 2 granola bars
Here is an expression:4 . 3t Evaluate the expression when t is 2.
What does this mean I need help?
Find the value of x round to the nearest tenth
Answer:
8.2
Step-by-step explanation:
sin^-1 (8.2/21) is 22.984 which is pretty close to 23
need help offering 10 points if answer correct will give brainlest
Answer:
the answer is 55% are satisfied with the car
Find the rate of change for the interval [5,15]
A worker at a mill is loading 8-1b bags of flour into boxes to deliver to a local warehouse.
Each box holds 10 bags of flour.
If the warehouse orders 4 tons of flour, how many boxes are needed to fulfill the order?
boxes are needed to fulfill the order.
Answer:
100
Step-by-step explanation:
look at pic 10 pts will mark brainilest
Answer:
x/4 = 14
Bottom right one
Step-by-step explanation:
x/4 = 14
Bottom right one
There were 4 total and each payed 13.
Answer:
A 4x=$13
Step-by-step explanation:
Calculate the range for both sets of data:
Set A: 8.7, 1.8, 1.2, 1.4, 6.8, 0.9, 9.8
Set B: 2.7, 3.3, 8, 7.1, 4.6, 6.3
Can someone tell or show me how to do this pls? will give brainleist!
In simplest radical form, what are the solutions to the quadratic equation 6 = x2 - 10/?
Quadratic formula: * = -bt/b? 40c
20
O x=5+31
O x = 51/19
O x = 5+219
O x = 5+2/31
Answer:
[tex]x = 5 \± \sqrt{31}[/tex]
Step-by-step explanation:
Given
[tex]6 = x^2 - 10x[/tex]
Required
The solution in radical form
[tex]6 = x^2 - 10x[/tex]
Rewrite as:
[tex]x^2 - 10x - 6 = 0[/tex]
Using the quadratic formula, we have:
[tex]x = \frac{-b \± \sqrt{b^2 - 4ac}}{2a}[/tex]
Where
a = 1
b = -10
c = -6
So, we have:
[tex]x = \frac{-(-10) \± \sqrt{(-10)^2 - 4*1*(-6)}}{2*1}[/tex]
[tex]x = \frac{10 \± \sqrt{100 +24}}{2*1}[/tex]
[tex]x = \frac{10 \± \sqrt{124}}{2}[/tex]
Split the roots
[tex]x = \frac{10 \± \sqrt{4 * 31}}{2}[/tex]
Express [tex]\sqrt 4[/tex] as 2
[tex]x = \frac{10 \± 2\sqrt{31}}{2}[/tex]
Split the fraction
[tex]x = \frac{10}{2} \± \frac{2\sqrt{31}}{2}[/tex]
[tex]x = 5 \± \sqrt{31}[/tex]
7.500/3.125 What is written in decimal form? 3.195 A. 0.116 O B. 2.4 O c. 4.375 D. 75.3125
Convert 85 feet per day into miles per year.
Answer:
85 feet per day = 5.879846 miles per year.
Answer:
5.88 miles
Step-by-step explanation:
85 x 365 =31,025 feet per year
31025/5280 = 5.88 miles
Please help me.......
Answer:
[tex]57\frac{3}{11}[/tex] = c
or
[tex]57.\overline{27}[/tex] = c
Step-by-step explanation:
We know that the diameter of a circle multiplied by [tex]\pi[/tex] is the circumference, so we can create this equation:
180 = c * [tex]\pi[/tex]
Your teacher told us to assume [tex]\pi[/tex] is 22/7, so we'll put that in
180 = c * [tex]\frac{22}{7\\}[/tex]
To get c by itself, we divide both sides by 22/7
[tex]\frac{180}{\frac{22}{7}}[/tex] = c
Dividing by a number is the same as multiplying by its reciprocal, so we'll multiply 180 by 7/22
180 * [tex]\frac{7}{22}[/tex] = c
Evaluate
[tex]\frac{1260}{22}[/tex] = c
[tex]57\frac{3}{11}[/tex] = c
If you want a decimal instead:
[tex]57.\overline{27}[/tex] = c
Susanne is going to college and was informed that she will get a grant to pay for
her tuition. Which statement describes a grant?
Answer:
what are the options????
What is the definition of independent samples? A. All samples of the same size have an equal chance of being selected from the population. B. The sample selected from one of the populations has no effect or bearing on the sample selected from the other population. C. The sample selected from one of the populations is paired with a sample selected from the other population.
Answer:
B. The sample selected from one of the populations has no effect or bearing on the sample selected from the other population.
Step-by-step explanation:
In statistical analysis, the use of independent samples for diverse studies is common.
Independent samples are such that the sample selected from one of the populations has no effect or bearing on the sample selected from the other population.
This means that samples are selected randomly in such a way that an observation obtained from a sample does not depend on the values obtained from the observation of another sample from the other population.
Question 6 of 10
Suppose that there were a strong correlation between the variables dand f.
Which of these is a true statement?
A. d must cause f.
O B. dmay cause f.
O C. dmust not cause f.
D. f must cause d.
what is the range of f?
Answer:
Range is [tex]-5 \le y \le 5[/tex]
Range in interval notation is [-5, 5]
==========================================================
Explanation:
Refer to the diagram below. As marked in red, the smallest y value is y = -5. The largest y value is y = 5. The range is the set of y values between these endpoints, including both endpoints.
We can say the range is [tex]-5 \le y \le 5[/tex]
In interval notation, we write that as [-5, 5]. The use of square brackets tells the reader that the endpoints are included as part of the range.
Jason is watering his garden. He uses 2.75 gallons of water each minute. How much
water does Jason use after watering his garden for 3 minutes?
Answer:
8,25
Step-by-step explanation:
easy 5th grade math please look at photo and show work. Giving brainliest!!
Answer:
D) 13 1/8
Step-by-step explanation:
105/8=13 1/8 cups
Hope this helped! :)
Which of the following statements about rational numbers is not correct??
A. All rational numbers can be written in the form a/b, where b =/ 0
B. All whole numbers are also rational numbers.
C. Rational numbers cannot be negative.
D. All integers are also rational numbers.
P.S the =/ are actually together in one thing they aren't separate. I would take a picture but it is blurry.
Answer:
I'm pretty sure it's C.
Step-by-step explanation:
Please help me out on this!!
Answer:
12.68
Step-by-step explanation:
Find the midpoint of the segment below and enter its coordinates as an
ordered pair. If necessary, express coordinates as fractions, using the slash
mark (7) for the fraction bar.
10
(3,7)
Answer here
-10
10
(2, -1)
-10
Answer:
([tex]\frac{5}{2}[/tex], 3)
Step-by-step explanation:
I got 5/2 as my x variable and 3 for my y variable to being the midpoint. In which I added both my x variables provided ( 3 and 2 ) and then I divided them by two to get half of that (since you are looking for in between those two digits technically so you are wanting to find the midpoint or the middle of that line segment). I also did the same with the two y variables as well which were 7 and -1, then I divided both by two to get the variable 3.
Answer:
5/2, 3
Step-by-step explanation:
that should be your answer (hopefully)
Need help!!!!! with this test pls IM SORRY FOR ASKING SO MANY TIMES BUT PLS HELP
Answer:
I hope its 15/10
Step-by-step explanation:
please let me know if its wrong
What is the area of this triangle, in square units? Explain or show your reasoning.
Answer:
Half of the base multiple by the height
0.7% of what number is 35
Answer:
The answer is 0.25
Step-by-step explanation:
PLEASE HELPPPP
Find the product or type
"impossible"
2
[3 1 -6
0
1]
[?]
Answer:
0
Step-by-step explanation:
(3 * 2) + (1 * -6) + (1 * 0)
6 + -6 + 0 = 0
Find the surface area of the square pyramid shown below. Units2
Base is 8 and hight is 6
The surface area for a pyramid that is: Base 8 and height 6
Would be: 42.87