<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.
The question that cannot be answered based on the information in the delivery truck data base is 2) What is the average number of customer deliveries made by each truck on a particular day?
<h3>Why can this question not be answered?</h3>
In order to answer this question, the number of customers that each truck delivered to during the day needs to be recorded.
The total number of deliveries will then be added up and divided by the number of trucks making deliveries.
The information on the number of deliveries made is not in the database so this question cannot be answered.
In conclusion, option 2 is correct.
Find out more on databases at brainly.com/question/518894.
B increase development cost for new chemical products
Answer: Capital structure
Explanation: In simple words, capital structure refers to the proportion of different securities that an organisation uses as a combination to fund its operations. In other words, the amount of debt and equity in total capital in hand of the business is termed as capital structure.
Capital structure is of high importance to the investors as it directly impacts the liquidity and profitability of the organisation.
The ability of a company to bear its short term obligation is called liquidity and the ability to generate profit with given amount of resources is called profitability.
Answer:
the adjusted cash balance as on April 30,2018 is $77,800
Explanation:
The computation of the adjusted cash balance as on April 30,2018 is as follows;
= Balance as per bank statement + deposit in transit - outstanding checks
= $78,800 + $9,300 - $10,300
= $77,800
Hence, the adjusted cash balance as on April 30,2018 is $77,800
We simply applied the above formula so that the accurate value could arrive