1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dem82 [27]
3 years ago
14

Difference between purchase book and sales book​

Mathematics
2 answers:
zepelin [54]3 years ago
5 0
Purchase book is a book you buy from a seller. A sales book is a book somebody purchased from you
tigry1 [53]3 years ago
4 0
A purchase is one where you purchase it and sales is one you sell :)

Hope that helped!
You might be interested in
How do I solve (6^-2)^2 ?
makvit [3.9K]
(6^-2)^2 = 1/1296 = 0.0007716049382716 hope this is what you were looking for. the math is right tho for (6^-2)^2 most calculators can do this easy just do 6^-2 then after just do ^2
8 0
3 years ago
Please help, YOU WILL GET 50 POINTS
netineya [11]

Answer:

i guess its linear pair type questions

i have done like this

5 0
2 years ago
The test scores of students in a math class are 46, 40, 50, 43, 35, 41, 50, 42, 38, and 48. What is the mean of this set of data
zimovet [89]
Mean is the average. You would add up all the numbers and divide by how many numbers you have.  433/10=43.3
5 0
3 years ago
What is 1/5 - 3/4 <br>thank you for your answer <br>btw I am on edg ​
vitfil [10]

Answer:

-11/20 or -0.55

Step-by-step explanation:

1/5 = 4/20

3/4 = 15/20

4/20 - 15/20 = -11/20

3 0
3 years ago
Read 2 more answers
A major retail clothing store is interested in estimating the difference in mean monthly purchases by customers who use the stor
mixer [17]

Answer:

Critical value is t = 1.9901

Step-by-step explanation:

We are given the results of the sampling :

                                     In-House Credit Card                National Credit Card                    <u>Sample Size</u> :                              32                                                    50

<u>Mean Monthly Purchases </u>:      $45.67                                            $39.87

<u>Standard Deviation </u>:                $10.90                                             $12.47

Also, the managers wished to test whether there is a statistical difference in the mean monthly purchases by customers using the two types of credit cards, using a significance level α of 0.05.

<em>Firstly, we will specify our null and alternate hypothesis;</em>

Let \mu_1 = Mean Monthly Purchases of In-House Credit Card

     \mu_2 = Mean Monthly purchases of National Credit Card

So, Null Hypothesis, H_0 : \mu_1-\mu_2 = 0  {means that there is no difference in the mean monthly purchases by customers using the two types of credit cards}

Alternate Hypothesis, H_0 : \mu_1-\mu_2\neq 0  {means that there is statistical difference in the mean monthly purchases by customers using the two types of credit cards}

The test statistics that will be used here is <u>Two-sample t-test statistics</u>;

              T.S. = \frac{(\bar X_1-\bar X_2)-(\mu_1-\mu_2)}{s_p \sqrt{\frac{1}{n_1}+\frac{1}{n_2}  } }  ~ t_n___1+n_2-_2

where, \bar X_1 = Sample mean Purchases of In-House Credit Card = $45.67

           \bar X_2 = Sample mean Purchases of National Credit Card = $39.87

            s_p = pooled variance

            n_1 = In-house credit card sample = 32

            n_2 = National credit card sample = 50

So, degree of freedom of t-value here is (32 + 50 - 2) = 80

Now, at 0.05 significance level, t table gives critical value of t = 1.9901 at 80 degree of freedom.

<em>Therefore, the critical value assuming the population standard deviations are not known but that the populations are normally distributed with equal variances is t = 1.9901.</em>

4 0
3 years ago
Other questions:
  • Write a proportion that could be used to solve for each variable. Then solve. 18 ounces in 6 bottles x ounces in 24 bottles
    12·1 answer
  • The prism is completely filled with 1750 cubes that have edge length of 15 ft.
    12·1 answer
  • The area of a triangle is found using the following formula:
    14·1 answer
  • Billy's mother had five children. The first was named Lala, the second was named Lele, the third was named Lili, the fourth was
    9·1 answer
  • Subtract the following. Write your answer in standard notation . 18-9.2×10^-4
    7·1 answer
  • Which symbol is correct ?
    10·1 answer
  • In a school, 130 students are sixth graders. If 52% of the students in the school are sixth graders, how many students are there
    8·1 answer
  • What is an angle that is complementary to DGE?<br><br> (Please hell I’ll reward)
    13·1 answer
  • Need help with numbers 8 and 9
    5·1 answer
  • What is the equation of the line?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!