Answer:
### What is percentage?

The **percentage** change in the price is 41.42%.

Percentage is defined as a given part or amount in every hundred. It is a **fraction** with 100 as the denominator and is represented by the symbol "%".

Given that, a price of £70 is increased to £99.

Now, the difference is 99-70=29

Percentage increase is 29/70 ×100

= 0.4142×100

= 41.42%

Therefore, the **percentage** change in the price is 41.42%.

To learn more about the **percentage** visit:

brainly.com/question/24159063.

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Answer:

**Answer: Your answer is 41.43%**

**To calculate, it is simply (99-70)/70 x 100**

**which is equal to 41.43%**

**Step-by-step explanation:**

A university administrator obtains a sample of the academic records of past and present scholarship athletes at the university. The administrator reports that no significant difference was found in the mean GPA (grade point average) for male and female scholarship athletes ( P = 0.287 ) . This means that: a. the maximum difference in GPAs between male and female scholarship athletes is 0.287. b. the chance of obtaining a difference in GPAs between male and female scholarship athletes as large as that observed in the sample if there is no difference in mean GPAs is 0.287. c. the GPAs for male and female scholarship athletes are identical, except for 28.7% of the athletes. d. the chance that a pair of randomly chosen male and female scholarship athletes would have a significant difference in GPAs is 0.287.

Teddy has two sisters. One of them is 3 years younger than Teddy, the other one is 7 years younger than her only brother. How old was the older sisters when the younger sister was born?plz help fast 30 minutes till turn in

A sample of 8 new models of automobiles provides the following data on highway miles per gallon. Highway Miles Model Per Gallon 1 33.6 2 26.8 3 20.2 4 38.7 5 35.1 6 28.0 7 26.2 8 27.6 a. What is the point estimate for the average highway miles per gallon for all new models of autos? b. Determine the point estimate for the standard deviation of the population.

What is the y-intercept of function f?A. 1B. -1C. -2D. 5

Y/9 + 5 = 0 ???????????

Teddy has two sisters. One of them is 3 years younger than Teddy, the other one is 7 years younger than her only brother. How old was the older sisters when the younger sister was born?plz help fast 30 minutes till turn in

A sample of 8 new models of automobiles provides the following data on highway miles per gallon. Highway Miles Model Per Gallon 1 33.6 2 26.8 3 20.2 4 38.7 5 35.1 6 28.0 7 26.2 8 27.6 a. What is the point estimate for the average highway miles per gallon for all new models of autos? b. Determine the point estimate for the standard deviation of the population.

What is the y-intercept of function f?A. 1B. -1C. -2D. 5

Y/9 + 5 = 0 ???????????

**Answer:**

tan(x) = -1/6

**Step-by-step explanation:**

We can use the relation between tan and sec:

**The tangent of x is -1/6**.

B. Order of questions

C. Sensitive questions

D. All of the above

Answer:A

Step-by-step explanation:

**Answer:** Write an augmented matrix for the system. Then state the dimensions. x+8y−7z=12 5x+9y+5z=15 6z−3y−8x=1

**Step-by-step explanation: x+8y-7z=12 5x+9y+5z=15 6z-3y-8x=1. - 18028782.**

The system of equations provided can be converted into an augmented matrix as follows: [[1, 8, -7, 12], [5, 9, 5, 15], [-8, -3, 6, 1]]. The dimensions of this matrix are 3x4.

The provided system of equations is:

1. x + 8y - 7z = 12

2. 5x + 9y + 5z = 15

3. -8x - 3y + 6z = 1

We can represent this system as an **augmented matrix** by aligning the coefficients of the variables and the constants. The augmented matrix is:

**[[1, 8, -7, 12], [5, 9, 5, 15], [-8, -3, 6, 1]]**

The dimensions of this matrix represents the number of rows and columns it has. In this case, this matrix is a **3x4 matrix** because it has 3 rows and 4 columns.

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**Answer:**

**99**

**Step-by-step explanation:**

**102-2=100**

**100-1=99**

**or**

**102-3=99**

His temperature is 99

**Answer:**

25, 33

**Step-by-step explanation:**

3. 124 divided by 5 is 24 remainder 4, so they will need 25 cars

4. 230 divided by 7 is 32 remainder 6, so they will need 33 boxes

Using the concepts of the **t-statistic** and the **z-statistic**, it is found that the **correct option** is:

The t-statistic does not require any knowledge of the population standard deviation.

The **z-statistic** is given by:

In which:

- X is the sample mean.
- is the population mean.
- is the
**population**standard deviation. - n is the sample size.

- The
**standard error**is .

The **t-statistic** is __similar to the z-statistic__, the difference is that the **sample standard deviation** is used, not the population. Thus:

In which:

- X is the sample mean.
- is the population mean.
- is the
**sample**standard deviation. - n is the sample size.
- The
**standard error**is .

For **large sample sizes**, the sample and population standard deviations are close, thus __t is a good estimate of z.__

Thus, the **correct option** is:

The t-statistic does not require any knowledge of the population standard deviation.

A similar problem is given at brainly.com/question/16194574

**Answer:**

Detailed elaborated answer is given below: