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3 years ago

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In the sentence below, interval can BEST be defined as which of the following? Sales taxes are collected by the retailer and sen

t to the local government at specific intervals. A. every year B. every six months C. every three months D. an undefined but regular cycle of collection

2 answers:

mel-nik [20]3 years ago

6 0

Answer:

D. an undefined but regular cycle of collection.

Step-by-step explanation:

This is the best description of what "interval" means in this sentence. An interval is an undefined period of time. However, it describes a regular cycle. In this case, the money is collected at specific intervals. This means that the money is collected in a regular way, although we do not know what the length of the cycle is.

Ymorist [56]3 years ago

5 0

The answer would be D. an interval isnt a certain number but it is a time something happens over and over again

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Step-by-step explanation:

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Chance that the socks is blue = 4/20

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A resident of Bayport claims to the City Council that the proportion of Westside residents

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Answer:

The test statistics is $z = -1.56$

The p-value is $p-value = 0.05938$

Step-by-step explanation:

From the question we are told

The West side sample size is $n_1 = 578$

The number of residents on the West side with income below poverty level is $k = 76$

The East side sample size $n_2=688$

The number of residents on the East side with income below poverty level is $u = 112$

The null hypothesis is $H_o : p_1 = p_2$

The alternative hypothesis is $H_a : p_1 < p_2$

Generally the sample proportion of West side is

$\^{p} _1 = \frac{k}{n_1}$

=> $\^{p} _1 = \frac{76}{578}$

=> $\^{p} _1 = 0.1315$

Generally the sample proportion of West side is

$\^{p} _2 = \frac{u}{n_2}$

=> $\^{p} _2 = \frac{112}{688}$

=> $\^{p} _2 = 0.1628$

Generally the pooled sample proportion is mathematically represented as

$p = \frac{k + u}{ n_1 + n_2 }$

=> $p = \frac{76 + 112}{ 578 + 688 }$

=> $p =0.1485$

Generally the test statistics is mathematically represented as

$z = \frac{\^ {p}_1 - \^{p}_2}{\sqrt{p(1- p) [\frac{1}{n_1 } + \frac{1}{n_2} ]} }$

=> $z = \frac{ 0.1315 - 0.1628 }{\sqrt{0.1485(1-0.1485) [\frac{1}{578} + \frac{1}{688} ]} }$

=> $z = -1.56$

Generally the p-value is mathematically represented as

$p-value = P(z < -1.56 )$

From z-table

$P(z < -1.56 ) = 0.05938$

So

$p-value = 0.05938$

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