Mathematics College

In a law office, the average number of billed hours per day was 150 last year. In the first 85 days of this year, the average number of billed hours per day is 158 with a standard deviation of 65 hours. When testing the hypothesis (at the 10% level of signficance) that the average number of billed hours per day has increased, what is the null and alternative hypotheses (please write out the null and alternative hypotheses below AND on your scratch work...failure to do BOTH will result in 0 points)

Answers

Answer 1

Answer:

There isn't enough evidence to reject H0

Step-by-step explanation:

Null hypothesis :

H0: μ = 150

H1 : μ > 150

Decision region :

Reject Null if ;

Pvalue < α

Zstatistic = (x - μ) / (s/sqrt(n))

Zstatistic = (158 - 150) / (65/sqrt(85))

Zstatistic = 0.1135

Using the P value calculator from Zstatistic at 90% ; α = 0.10 confidence interval ; one tailed test = 0.128

Pvalue = 0.128

Since ; 0.128 > 0.10

Pvalue > α

We cannot reject H0:

Related Questions

round 0.50062 to 2 significant figures

Answers

Answer:

0.50

Step-by-step explanation:

Count figures after the decimal

The answer is 0.50 yu welcome.!

I need help and I don’t know how to check it

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y=2x+3

Step-by-step explanation:

look at pic
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Answer:

The Second One I Think

Step-by-step explanation:

By what I understand that would be the one that is in standard form

Factor the algebraic expression.
12a+9

Answers

3(4a+3)

Hope this helps!! :)

Keeping it simple by asking for more help. Question 10.

Answers

Answer: I will go with A  or you can choose d if you want

Step-by-step explanation:

I really need help!

What is the measure of angle x?

Enter your anwer in the box

X= [ ]

Enter your anwer in the blox

Answers

Answer:

160 I think it is im not sure

Since the angle to the right of the angle are vertical angles with 41 it is safe to assume that the one next to it is also 41. So you add 56+41 and then set it equal to 180. 56+41+X =180 So you get 97+X=180 and then you subtract 180-97=X so X =83. And you can double check this by plugging it in to the equation.

97+X(83)=180

reasons why students fail exams ​

Answers

The read is that they didn’t study that’s the answer ok shah

In ΔMNO, m = 55 inches, n = 48 inches and o=59 inches. Find the measure of ∠O to the nearest 10th of a degree.

Answers

Answer: 69.5 degree

A share of ABC stock was worth $60 in 2000 and worth $1920 in 2005.
Write an exponential function that models the value of the stock starting
from 2005.

Answers

Answer:

A share of ABC stock was worth $60 in 2005 and only worth $45 in 2010. ... diftolence b. Write an exponential function that ...

Pls help due tomorrow if correct ill give brailiest

Answers

Answer:

Add 3 each term inside the parentheses, then use inverse operations to solve.

Step-by-step explanation:

Answer this correctly I’ll give brainalist + 10 points

Answers

Answer: 118

Step-by-step explanation:

These angles are a linear pair. They sum to 180 degrees.

62 + x = 180

-62 -62

X= 118

In a certain town there were 348 robberies last year. This year the number of robberies has gone down 40%. How many robberies were there this year, to the nearest whole number?

Answers

Answer:

209 robberies

Step-by-step explanation:

Robberies last year =348

Robberies has reduced by 40% which means there are (100-40)% = 60% robberies this year.

Number of robberies this year= 60% of 348 = 60/100 × 348 = 208.8

To the nearest whole number = 209

There are 209 robberies this year.

I hope this help.  

Find the area of the parallelogram.



The area of the parallelogram is [a] in2.

Answers

Answer:

A = 117in²

Step-by-step explanation:

A = bh

A = 9×13

A = 117in²

13

×9

117

Since it's a parallelogram where going to do the formula b×h.

Answer:

117in²

Step-by-step explanation:

A school earns $70 from selling 50 tickets for the school play. Each ticket costs the same price.
How much does the school earn for one ticket ??

Answers

70/50= 1.4
$1.4

ANSWER CHECK:
1.4x50
=70

7. Bella scored 8 points in the second round. This
made her total score 39. How many points did she
score in the first round?

Answers

I I think Bella scored 31 points in the first round

What is the area of the triangle?
8
4

Answers

area of triangle is base x height divide by 2
8x4=32
32 divide by 2 is
16

Please help
A 136
B 208
C 352
D 576

Answers

I believe it’s C. Have a good day. Hope this helps.

Answer im not in grade

Step-by-step explanation:

1 1/4 x 2 1/4 = ? i need help plzzz

Answers

Answer:

2,13/16

Step-by-step explanation: you can put it in the calculator and the answer given would be 2 13/16 hope it helps!

Answer:

2 13/16 or 45/16

Expressions can be written using a combination of numbers and letters. Those values can also be described using words. Choose ALL expressions that are correctly described in words.

which is it

Answers

Answer:

A: 3a + 9: the sum of three times a and nine

C:15b − 10: ten less than the product of fifteen and b

Step-by-step explanation:

I just answer this question in US, and I got C right but choose the wrong answer for A.

These are the right answers.

How do savings account differ from checking accounts
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- they typically pay interest
- the funds are easier to get
-you have to keep the money in for a long

Answers

Answer:

Savings accounts typically pay interest.

Step-by-step explanation:

Answer this correctly I'll give brainalist + 10 points

Answers

Answer:

x=90-73=17

Step-by-step explanation:

Answer:

I think it might be 17... sorry if u get ir wrong

PART A: is this a proportional relationship?
PART B: if this is a proportional relationship, what is the constant?
PART C: if this is a proportional relationship, write a direct proportional equation.

Answers

Yes this is proportional. The constant term is the y is 2 times then the x . Y= x•2

78.53981... to the one decimal place

Answers

answer: 78.5

explanation: you just round the first number after the decimal (if the second number is higher than 5 round up of lower leave it alone)

Which expression is equivalent to the expression below?
g + g+g+g+g+g

Answers

Answer:

6 x g

Step-by-step explanation:

Answer:

[tex]g^{6}[/tex]

Step-by-step explanation:

triangle CAT is translated using the rule (x,y) (x-3, y+4) to create triangle C’A’T’. if a line segment is drawn from point c to point C’ and from point A to point A’. which statement would best describe the line segments drawn

Answers

Answer:

They are parallel and congruent

Step-by-step explanation:

A small jar of peanut butter sells for 0.08 per ounce. A large jar of peanut butter sells for $1.20 per pound. Which is the better buy and by how much (in cents per pound)?

Answers

Answer:

a small jar of penuts buteer sells for 0.08 per ounce

A large jar of penut buttter sells for $1.20 per pound

the answer is :

hope it will help you

Brainliest stars


21)
In which container is the probability of randomly selecting a red ball on one draw 3/7?

Answers

Answer: Your answer is going to be C)

Here is my explanation, very simple! So if you count all the balls together in answer's A) B) and D) there aren't 3 balls in each, so for example answer A) has 4 red ball's. B) only has 1 red ball, D) also has 1 ball, so C) is your only reasonable answer because although all the containers have a total of 7 ball's there is not enough for your probability. being said your container/answer is C!

Answer: c

Step-by-step explanation: the girl up there said it

How do I answer this ? (1 + 3x)º
44°

Answers

Answer:

132x+44

Step-by-step explanation:

(1+3x)(44)

=(1+3x)(44)

=(1)(44)+(3x)(44)

=44+132x

=132x+44


There are 24 students in a class. Only -- of the students remembered to bring their hat and mittens to class.
How many students forgot to bring their hat and mittens?

Answers

Answer:

6

Step-by-step explanation:

Answer:

22?

Step-by-step explanation:

24-2=22?????

A directed line segment AB with A (1,3) and B (8,4) is partitioned by point C such that AC and CB form a 4:1 ratio. Find C
Write your answer as a coordinate point.
Do not include spaces in your answer.
Write your answer as a decimal if necessary.

Answers

Answer:

[tex]C = (\frac{33}{5},\frac{19}{5})[/tex]

Step-by-step explanation:

Given

[tex]A = (1,3)[/tex]

[tex]B = (8,4)[/tex]

[tex]AC : BC = 4 : 1[/tex]

Required

Determine the coordinates of C

To do this, we make use of:

[tex]C = (\frac{nx_1 + mx_2}{n+m},\frac{ny_1 + my_2}{n+m})[/tex]

Where:

[tex]A = (1,3)[/tex] ---- [tex](x_1,y_1)[/tex]

[tex]B = (8,4)[/tex] ---- [tex](x_2,y_2)[/tex]

[tex]m:n = 4 : 1[/tex]

So:

[tex]C = (\frac{1 * 1 + 4*8}{1+4},\frac{1*3 + 4*4}{1+4})[/tex]

[tex]C = (\frac{33}{5},\frac{19}{5})[/tex]

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