Explanation

Explanation

Step 1: Identify the first term and common difference

• First term $a = 7$

• Common difference $d=11-7=4$

Step 2: Use the formula for the n
th term of an A.P.:

$$a_n = a + (n - 1)d$$

For the 21st term:

$$a_{21} = 7 + (21 - 1) times 4 = 7 + 20 times 4 = 7 + 80 = 87$$

Explanation

A petty cash fund is typically managed using an imprest system, which is a method of managing small amounts of cash.

Here's how it works:

• A fixed amount of cash is designated for petty cash (e.g. $100).
• The petty cash fund is replenished periodically (e.g. monthly) by withdrawing the exact amount of cash that has been spent, plus any additional amount needed to restore the fund to its original amount.
• All transactions are recorded in a petty cash log or journal.
• The fund is regularly reviewed and reconciled to ensure accuracy and prevent fraud.

Explanation

The basic principle of experimental design that is NOT listed is: Confounding.

Explanation

Solve using variables from Man to boys and then put values

Three men earn as much as 4 women

=> 1 man earns = 4343 women

4 women earn as much as 6 boys

=> 1 woman earns = 6464 boys

=> 1 man earns = 4343 women = 4343 * 6464 boys = 2 boys

8 boys earn as much as 10 girls

=> 1 boy earns = 108108 girls = 5454 girls = 5454 * Rs40 = $50

=> 1 man earns = 2 boys = 2* Rs50 = Rs100

Explanation

When testing a null hypothesis, there are two types of errors that can occur:

• Type I error (α-error): Rejecting the null hypothesis when it is actually true (false positive).
• Type II error (β-error): Failing to reject the null hypothesis when it is actually false (false negative).

Explanation

Design of experiments (DOE) is commonly used to:

• Develop new processes
• Improve existing processes
• Optimize process parameters
• Reduce variability
• Improve product quality

Explanation

• The type of business finally obligated to prepare financial statements is a Publicly Traded Company.
• Publicly traded companies have stricter standards for financial statement reporting and must follow Generally Accepted Accounting Principles (GAAP), which requires accrual accounting.

Explanation

A petty cash fund is used to manage small, everyday transactions such as:

• Buying office supplies
• Paying for travel expenses
• Purchasing small equipment or materials
• Handling miscellaneous expenses

Explanation

• A sample statistic is a numerical value that summarizes a characteristic of a sample.
• Such as the sample mean, sample proportion, sample variance, etc.