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DedPeter [7]
2 years ago
5

The Bank of america trends in Consumer Mobility Report indicates that in a typical day, 51% of users of mobile phones use their

phone at least once per hour, 26% use their phone a few times per day, 8% use their phone morning and evening, and 13% hardly ever use their phones. The remaining 2% indicated that they did not know how often they used their mobile phone (USa today, July 7, 2014). Consider a sample of 150 mobile phone users. A. What is the probability that at least 70 use their phone at least once per hour? B. What is the probability that at least 75 but less than 80 use their phone at least once per hour? C. What is the probability that less than 5 of the 150 phone users do not know how often they use their phone?

Business
1 answer:
Vaselesa [24]2 years ago
6 0

<u>Solution and Explanation:</u>

a)  51% of users of mobile phones use their phone at least once per hour,

It is a binomial distribution with n = 150, p = 0.51

mean = np = 150 multiply with 0.51 = 76.5

SD= sqrt(np(1-p) )= 6.1225

Since np and n(1-p) > 5, we can assume the distribution is normal.

B) please see the attached file.

c)  It is a binomial distribution with n = 150, p = 0.02

mean = np = 150*0.02 = 3

SD= sqrt(np(1-p) )= 1.71464

Since np < 5, we cannot assume the distribution is normal.

 

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ludmilkaskok [199]

Answer:

Steps to Reviewing it:

  1. Look for the unweighted and Total GPA
  2. Look at the individual grades for the various subjects by semester then by GP.
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  4. Finally look at the comments made on the report

Sections drawn to:

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  • Grades in certain courses such as Computer Science, Commerce and Chemistry.
  • Comments from teachers

Important to me

  • That I pass all my subjects as much as possible and cause my teachers less grief.

Important to my parents

  • That I pass all my subjects by the best margins possible.

Actions if something looks wrong:

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4 0
1 year ago
A car parts company decides to discontinue the production of its lowest-selling products and instead focuses on its areas of exp
Ludmilka [50]

Answer:

A) Core Competency

Explanation:

Core Competency

Core competency refers to an organisation's strategic advantage over its competitors, it means the capabilities and the resources that a business must find, cultivate and explore in order to have an advantage over its competitors in the same line of business.

In order for an activity to be defined as a business' core competence, that activity must be unique, making it difficult for others to re-produce an it must also produce a unique level of benefit or value for the consumers of the product.

Since the car parts company has innovated a new automobile product with unique value, <u>It has cultivated and explored its core competency </u>

7 0
2 years ago
Read 2 more answers
Vermeillen Corporation uses a standard costing system in which variable manufacturing overhead is assigned to production on the
Delicious77 [7]

Answer:

1 ) Variable Overhead Rate Variance = ( SR - AR )* AH

                                                         = ( $21 - $20) 3,500

                                                        = $3,500 Favorable

2 ) Labor Rate =  ( SR - AR )* AH

                      =  ( $24 - $24.9) 2,290

                      =$2,061 U

Explanation:

TOTAL =  Standard cost - Incurred cost

Standard Cost = $70,000 + $4,550

                        = $74,550

Standard Rate = $74,550 / 3,550

                        = $21

cost incurred = AR * machine hours

cost per machine hour = $70,000/3,500

                                      =$20

2) Labor Rate =  ( SR - AR )* AH

                      =  ( $24 - $24.9) 2,290

                      =$2,061 U

AR = $57,021/2,290 = $24.9

AR = Actual Rate

SR = Standard Rate

AH = Actual hours

8 0
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olga2289 [7]

Solution:

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July 1st                                           Cr                 Dr

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September 1st                              Cr                       Dr

Cash                                                                     2000                    

Accounts receivable                                             400

Cost of goods sold                                                 1100

Inventory                                      1100

Unearned service revenue          554

Sales Revenue                             1846

October 15th                                   Cr                       Dr

Cash                                                                         400

Unearned service revenue                                     554

Service revenue                             554

Accounts receivable                      400

7 0
2 years ago
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RideAnS [48]

Answer: Outsource production to other countries where labour is abundant because labour in those countries are cheaper than in their home countries.in order to reduce the cost of Production and maximize profit, on the other hand a firm may use capital intensive production technique in order to improve efficiency in production and cut cost which will also translate to profit maximization.

Explanation:

Production is the creation of goods and services in order to satisfy human wants.production is not complete untill the goods is finally in the hands of consumers. There are four factors of production which are land, Labour, capital and entrepreneurs.

The Labour is the productive power of the individual. It refers to the actual effort both physical and mental made by human being in production. The Labour intensive industry is a kind of industry where extensive use of human Labour in production is more than the use of machine in production. The capital as one of the factors of production, is the wealth which has been set aside for the production of further wealth. This is because capital plays an important role in increasing production. Capital such as tools,machines,equipment, help in increasing production. The capital intensive industry is therefore, the extensive use of machines in production than human effort in the production of goods. The replacement of machines with human Labour enhances efficiency because of the difficult work which can easily be performed with the use of machine.It also aid in the mass production of goods because machines increases output per man. Therefore we can say that production function can be written as x= f ( K,L) where K is capital and L is labour

The product output depends on the techniques of production used in the production of such goods. Given the firm's capital outlay for inputs, the more efficient the technique used the greater will be the firm's output, and the less efficient the technique used the smaller will be its output. The product output also depends on the quantity and quality of resources used in production, a firm can increase or decrease output by increasing or decreasing the quantity of all resources or inputs used. The firm may choose to outsource production to countries where Labour is abundant such as the south east Asia because the Labour is abundant and cheap. They do this in order to reduce their cost of Production and at the end of the day maximize profit. While the firm which use capital intensive production technique use it in order to improve efficiency of their production and also to cut cost of Production which will also increase profit .

6 0
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