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Westkost [7]
2 years ago
11

A local supermarket organised two weeks of promotions to boost sales. The average dailly salles before the carmpaign is $10 000,

which becomes $11 000 during the promotion (average over 2 weeks). Which analysis below is not useful for evaluating whether the increase in sales is statistically significant? Check the distribution of sales data. Inspect for possible outliers in sales data. Calculate precision of the prediction Monitor sales for longer period of time.
Mathematics
1 answer:
Grace [21]2 years ago
4 0

Answer:

The analysis that is not useful for evaluating whether the increase in sales is statistically significant is to calculate precision of the prediction.

Step-by-step explanation:

" A sales promotion entails the features via advertising and or a discounted price of a particular product or service"

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Joe earns $4,100 per month and pays $870 each month in rent. Approximately what percent of his money is spent on rent?
Scorpion4ik [409]

if we take 4100 to be the 100%, what is 870 off of it in percentage?


\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} 4100&100\\ 870&x \end{array}\implies \cfrac{4100}{870}=\cfrac{100}{x} \\\\\\ 4100x=87000\implies x=\cfrac{87000}{4100}\implies x=\cfrac{870}{41}\implies x\approx 21.22

8 0
3 years ago
What is the value of x? <br><br>Enter your answer in the box
Tasya [4]
This is a ratio problem:

26/18 = 39/x

to solve for x cross multiply: 18 * 39 = 702 and then divide by 26

702 / 26 = 27

x = 27
5 0
2 years ago
Part B
abruzzese [7]

Answer:

The method regarding the sampling to pick 200 sales representative is to make 20 groups of 10.

What is sampling?

Sampling simply means a process that's used in statistics where a predetermined number of observations are selected from the larger population.

In this case, the best way for the sales director to include 200 sales representatives, with an equal number from each region is simply to make 20 groups of 10.

Step-by-step explanation: correct on plato:)

6 0
2 years ago
The diameter of a semicircle is 6 miles. What is the semicircle's perimeter?
koban [17]

Answer:

15.42mi

Step-by-step explanation:

Use the formula for a semicircle's perimeter.

P=\frac{1}{2}\pi *d+d

Plug in 6 for d.

P=\frac{1}{2}\pi*6+6

Let's use 3.14 for \pi, just to make it easier, but of course, if it states to round it to something else, just plug in that many values for \pi.

P=\frac{1}{2}(3.14)*6+6 \\ \\ P=1.57*6+6 \\ \\ P=9.42+6 \\ \\ P=15.42

5 0
3 years ago
Read 2 more answers
A) Complete the table of values for y = 6 - 2x<br><br> 0<br> 1<br> 2<br> 3<br> 4<br> 5<br> -4
andreyandreev [35.5K]

Answer:

0

2

4

1

5

44

Step-by-step explanation:

mark brainliest

6 0
2 years ago
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