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kogti [31]
2 years ago
13

According to an article in Marketing News, fewer checks are being written at the grocery store checkout than in the past. To det

ermine whether there is a difference in the proportion of shoppers who pay by check among three consecutive years at a 0.05 level of significance, the results of a survey of 500 shoppers in three consecutive years are obtained and presented below.
Year
Check Written Year 1 Year 2 Year 3
Yes 225 175 125
No 275 325 375

Referring to the above table, what is the expected number of shoppers who pay by check in year 1, if there is no difference in the proportion of shoppers who pay by check among the three years?

Select one:

a. 150
b. 187.5
c. 175
d. 225
Mathematics
1 answer:
alina1380 [7]2 years ago
6 0

Answer:

ooga booga

Step-by-step explanation:

my feet smell like tooga

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Please help me solve
telo118 [61]

Answer:

(0, -1)

Step-by-step explanation:

x becomes x - 6, so subtract 6 from the x-coordinate.

y becomes y - 1, so subtract 1 from the y-coordinate.

P(6, 0) -----> P'(0, -1)

7 0
2 years ago
To make hummingbird nectar you must use 4 cups of water and 1 cup of sugar. What is the ratio of water to sugar?
Paladinen [302]
4:1,

there are 4 cups of water for every 1 cup of sugar
5 0
3 years ago
Read 2 more answers
The roof of the Terminal Tower is 709 feet above ground. A window washer dropped a bucket from the edge of the roof. How many se
Masja [62]

Answer:

6.64 seconds

Step-by-step explanation:

Given that:

Distance between roof of the terminal and ground = 709 feet

A bucket was dropped from the roof.

To find:

The time taken by the bucket to hit the ground?

Solution:

Distance traveled, s = 709 feet

Initial velocity of the bucket, u = 0 feet/sec (because initially it was at rest)

Acceleration of the bucket will be equal to acceleration due to gravity i.e.

g or 32.1741 ft/sec^{2}

Let the time taken is t seconds.

Formula for distance is given as:

s = ut+\dfrac{1}{2}at^2

Putting all the values:

709 = 0 (t) + \dfrac{1}{2}(32.1741) t^2\\\Rightarrow 1418 = 32.1741 t^2\\\Rightarrow t^2 = 44.07\\\Rightarrow t \approx \bold{6.64\ sec}

6 0
2 years ago
Solve the following problem and show the work. (x - 6)^2 + (y + 1)^2 = 40
Taya2010 [7]

Answer:

see explanation

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

(x - 6)² + (y + 1)² = 40 ← is the equation of a circle in standard form

centre = (6, - 1) and r = \sqrt{40} = 2\sqrt{10}

3 0
3 years ago
Write an expression/equation/inequality represented by the following statements. NO NEED TO SOLVE
serious [3.7K]

Answer:

a. n - 11 \le 14

b. 5n - 10 < 4(n - 8)

Step-by-step explanation:

a. A number decreased by 11 is at most 14.

n - 11 \le 14

b. Ten less than five times a number is less than four times the number decreased by eight.

5n - 10 < 4(n - 8)

8 0
3 years ago
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