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Vaselesa [24]
3 years ago
5

Write the decimal for 1/2

Mathematics
2 answers:
harkovskaia [24]3 years ago
8 0
1/2 as a decimal is 0.5
Inessa [10]3 years ago
5 0
0.5 Hoped this helped :D
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A study was conducted to compare the proportion of drivers in Boston and New York who wore seat belts while driving. Data were c
allochka39001 [22]

Answer:

a) The test statistic is z = -2.51

b) The pvalue is 0.0060.

Step-by-step explanation:

Question a:

Ha: pB < pNY

This means that the alternate hypothesis is rewritten as:

H_a: p_{B} - p_{NY} < 0

While the null hypothesis is:

H_0: p_{B} - p_{NY} = 0

The test statistic is:

z = \frac{X - \mu}{s}

In which X is the sample mean, \mu is the value tested at the null hypothesis and s is the standard error

pB = 0.581, pNY = 0.832

This means that X = 0.581 - 0.832 = -0.251

0 is tested at the null hypothesis:

This means that \mu = 0

Standard error = 0.1

This means that s = 0.1

Test statistic:

z = \frac{X - \mu}{s}

z = \frac{-0.251 - 0}{0.1}

z = -2.51

The test statistic is z = -2.51

Question b:

The pvalue is the probability of finding a proportion less than -0.251, that is, a difference of at least 0.251, which is the pvalue of Z = -2.51.

Looking at the z-table, Z = -2.51 has a pvalue of 0.0060

The pvalue is 0.0060.

5 0
3 years ago
Can You Help Me<br> Solve for M<br> -7+4m+10=15-2m
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Answer:

m=2

Explanation:

<em>see .pdf file</em>

Download pdf
4 0
3 years ago
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A pyramid has a square base with side s. The height of the pyramid is 2/3 that of its side. What is the expression for the volum
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Answer:

The correct option is option D

Step-by-step explanation:

The volume of a pyramid is:

V=1/3(B)(H)

Where

B:Base = s^2

H:Height = 2/3s

Then:

V=1/3(B)(H) = 1/3(s^2)(2/3s) = 2/9s^3

The correct option is option D

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3 years ago
conner has $25,000 in his bank account. Every month he spends $1,500 and does not add any money to the account how much will he
QveST [7]

Answer:

13000

Step-by-step explanation:

m= 1500(8)+25000

   M= 12000+25000

           $13000

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