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faust18 [17]
3 years ago
10

40 points

Mathematics
1 answer:
siniylev [52]3 years ago
7 0

Answer:

The answer is high inflation

Step-by-step explanation:

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A development economist is studying income growth in a rural area of a developing country. The last census of the population of
Anna [14]

Answer:

Reject H0 if x > cv

Step-by-step explanation:

The hypothesis :

H0 : μ ≤ 425

H1 : μ > 425

Standard deviation, s = √2500 = 50

Sample size, n = 100

xbar = 433.5

The test statistic, Z :

(xbar - μ) / s/√n

(433.5 - 425) / 50/10

Z = 8.5 / 5 = 1.7

The decision region ;

|Z| > Z0.01 ; Reject H0

From Z table ;critical value, Z0.01 = 2.33

1.7 < 2.33 ; We fail to reject then Null and conclude that thee is no significant evidence support the claim that population mean income has increased.

7 0
2 years ago
I)x-1 by 4=3<br>ii)3x+6 by 2=3 by 2<br>iii)3x-1by5=2x+3by7​​
suter [353]

Answer:

13,-1,2

Step-by-step explanation:

i hope it is helpful......for you

3 0
3 years ago
Looking at angle DEF which statement is true
Dennis_Churaev [7]

Answer:

B.  <D = <F  

hope this helps


3 0
3 years ago
A surgery asks 25 people if they prefer brand A of brand B laundry detergent. The data show that 12 people prefer brand A. Write
SVETLANKA909090 [29]

Answer:

13 to 25

13:25

\frac{13}{25}

Step-by-step explanation:

All of these show the ratio 13/25

Hope this helps!

8 0
2 years ago
Add the two expressions.<br><br> m + 6 and 4m + 2<br><br> Enter your answer in the box
ANEK [815]
Hey so we would collect like terms: 5m+8

If this helped, please consider brainliest! Have an awesome day!
4 0
3 years ago
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