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Pie
2 years ago
10

A political adviser stood at the corner of 1st Avenue and Main Street and asked every 10th person who walked past if they intend

ed to vote in the next election. Identify the sampling method used.
stratified
convenience
voluntary-response
systematic

Mathematics
1 answer:
krok68 [10]2 years ago
8 0

Answer:

Voluntary response

Step-by-step explanation:

Because the politival adviser deliberately chosen a reaction to a stimulus that may require a complex coordination of excitatory and inhibitory impulses with feedback from visual, motor, and other systems.

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Three machines are used to produce nails. the table displays the total number of nails produced by the three machines over diffe
mamaluj [8]

Answer:

Step-by-step explanation

they answer would be a whole number because you are multiplying by one thousand

6 0
3 years ago
3 more than the quotient of a number and 8 is 27.
worty [1.4K]
(x/8) + 3 = 27 <===ur equation
6 0
3 years ago
6. Marie used 5 1/4 yards of fabric on Friday. On Saturday, she used 7 yards of fabric. How many yards of fabric did she use? Sh
Cloud [144]

Answer:

12 1/4 yards of fabric

Step-by-step explanation:

4 0
3 years ago
A study claims that college students spend an average of 4 hours or less studying per day. A researcher wants to check if this c
kirill115 [55]
<h2>Answer with explanation:</h2>

Let \mu be the population mean.

By observing the given information, we have :-

H_0:\mu\leq4\\\\H_a:\mu>4

Since the alternative hypotheses is left tailed so the test is a right-tailed test.

We assume that the time spend by students per day is normally distributed.

Given : Sample size :  n=121 , since n>30 so we use z-test.

Sample mean : \overline{x}=3.15

Standard deviation : \sigma=1.2

Test statistic for population mean :-

z=\dfrac{\overline{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}

\Rightarrow\ z=\dfrac{3.15-4}{\dfrac{1.2}{\sqrt{121}}}\\\\\Rightarrow\ z=-7.79166666667\approx-7.79

Critical value (one-tailed) corresponds to the given significance level :-

z_{\alpha}=z_{0.1}=1.2816

Since the observed value of z (-7.79) is less than the critical value (1.2816) , so we do not reject the null hypothesis.

Hence, we conclude that we have enough evidence to accept that the college students spend an average of 4 hours or less studying per day.

4 0
3 years ago
Find the area of this parallelogram. Be sure to include the correct unit in your answer.
JulijaS [17]

Answer:

A=BH so, Area is 108 inches :)

Step-by-step explanation:

A= B x H

A = 12 x 9

A = 108

7 0
3 years ago
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