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Mashcka [7]
2 years ago
10

Market researchers selected a random sample of people from region a and a random sample of people from region b. The researchers

asked the people in the samples whether they had tried a new product. The difference between the sample proportions (b minus a) of people in the regions who indicated they had tried the new product was 0. 15. Under the assumption that all conditions for inference were met, a hypothesis test was conducted with the alternative hypothesis being that the population proportion of b is greater than that of a. The p-value of the test was 0. 34.
SAT
1 answer:
dlinn [17]2 years ago
7 0

The #15 is correct. B minus A. Your welcome!

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A photographic stop bath contains 160ml of pure acetic acid.
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Answer:

Solving for the Percent by Volume

The v/v concentration of acetic acid in the stop bath is 24.6%.

Explanation:

To answer the question, we need to identify certain information stated in the question. Let us write down what’s given:

Volume of solute = 160 mL

Volume of solution = 650 mL

Next, we need to determine what is required, in this case, the percent by volume. Now, let us look at the formula:

v/v concentration = (solute volume / volume of the solution) * 100

Solution:

Percent by Volume = (160 / 650) * 100

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Percent by Volume = 24.61538461538462

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Therefore, the final answer is 24.6%

Explanation:

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Your license will be suspended for 90 days if you accumulate ___________ A. 12 points within 12 months. B. 18 points within 18 m
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A recent survey indicated that the mean time spent on a music streaming service is 210 minutes per week for the population of a
Lapatulllka [165]

There are different variations in population size.  The best reason why the simulation of the sampling distribution is not approximately normal is that The sample size was not sufficiently large.

<h3>What takes place if a sample size is not big enough? </h3>
  • When a sample size taken by a person or a researcher  is not big or inadequate for the alpha level and also analyses that one have chosen to do,  it will limit the study statistical power.

Due to the above, the ability to know a statistical effect in one's sample if the effect are present in the population is greatly reduces.

See full options below

Which of the following would be the best reason why the simulation of the sampling distribution is not approximately normal?

A The samples were not selected at random.

B The sample size was not sufficiently large.

с The population distribution was approximately normal.

D The samples were selected without replacement.

E The sample means were less than the population mean.

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brainly.com/question/1279360

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Sodium hypochlorite, naocl, is the active ingredient in household bleach. what is the concentration of hypochlorite ion if 20.00
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The concentration of hypochlorite ion if 20.00 ml of bleach requires 32.00 ml of 0.500 m hcl to reach the equivalence point is: 0.800 M.

<h3>Concentration of hypochlorite ion</h3>

Given:

Ca = concentration/molarity of acid=0.500 M

Va = volume of acid= 32.00 cm3

Cb = concentration/molarity of base=?

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