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zaharov [31]
3 years ago
9

Suppose, to select a sample from a population of 3000 persons, the following procedure is followed. The names of the people are

written on identical, square pieces of thin cardboard measuring one inch on a side, and these pieces of cardboard are then tumbled in a clothes dryer (with the heat shut off). After 30 minutes, a blindfolded person reaches in and withdraws a selected number of names. What can be said about this sample
Mathematics
1 answer:
Gwar [14]3 years ago
5 0

Answer:

One can conclude that this sample is obtained through a simple random sampling technique.

Step-by-step explanation:

With a simple random sampling, each population participant has an equal chance of being selected.  This sampling method is the best sampling technique when compared with other random sampling methods like the Stratified Random Sampling and Double-stage Random Sampling.  The reason is that it gives equal chance to every sample to be chosen by eliminating sample bias.

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The stock of Company A gained $0.18 throughout the day and ended at a value of $6.18. By what percentage did the stock rise
erastovalidia [21]

Answer: % increase ≈ 3433%

Step-by-step explanation:

Step 1: work out the difference (increase) between the tow numbers you are comparing.

Increase = New Number - Original Number

Step 2: Divide the increase by the original number and multiply the answer by 100.

% increase = Increase ÷ Original Number x 100

Step 3: Plug in known values

Increase = 6.18

Original Number = 0.18

% increase = 6.18 ÷ 0.18 x 100

% increase = 34.333... x 100

% increase ≈ 3433%

5 0
4 years ago
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Jake walked 1 mile in 15 minutes. This week he walked 1 mile in 12 minutes. What is the percent of decrease in Jakes time to wal
dsp73
His time to walk a milk decreased by 20%.
6 0
3 years ago
Please help me out! answer all four questions please Im tired and want to go to bed.​
dezoksy [38]

Answer:

Hey buddy, here is your answer. Hope it helps you.

Step-by-step explanation:

1. 0.008

2. Square root of 64 is 8 and cube root of 64 is 4. The difference is 4.

3. Area=100 sq.cm. The side is 10 cm. so the perimeter is 4 x Side= 4x10=40 cm.

4. the two square roots of 25 are 5 and 5. Cuz 5 and 5 gives 25.

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3 years ago
Find the​ P-value for the indicated hypothesis test with the given standardized test​ statistic, z. Decide whether to reject Upp
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Answer: P-value = 0.1235604

We do not reject the null hypothesis .

Step-by-step explanation:

We know that when the obtained p-value is less than the significance level (\alpha) then we reject the null hypothesis  H_0 otherwise we do not reject null hypothesis  H_0.

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The p-value for the given test static (two-tailed)=0.1235604>0.03

So , we do not reject the null hypothesis H_0 .

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4 years ago
A boat can hold at most 1,000 pounds. If there is 300 pounds of equipment plus 25-pound boxes, what is the maximum number of box
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Answer:

26

Step-by-step explanation:

I think dont know

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3 years ago
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