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Elza [17]
3 years ago
13

A psychologist specializing in marriage counseling claims that, among all married couples, the proportion for whom her communica

tion program can prevent divorce is at least . In a random sample of married couples who completed her program, of them stayed together. Based on this sample, can we reject the psychologist's claim at the level of significance
Social Studies
1 answer:
Sedbober [7]3 years ago
5 0

At the level of 0.05% significance we can not reject the psychologist's claim. His claim is supported.

Explanation:

When a researcher undertakes a project to do research firstly he takes some random samples. Sample is definite a small group of numbers assume to represent the whole population. Suppose a researcher wants to do research on married couples to find the trend of divorce among them. For that reason he will randomly choose some of the couples and will draw conclusions that inter personal communication reduce the chances of divorce.

Now to establish this experiment as a fact he needs to go through a test of level of significance. Where he will get the result that his statement is established or rejected.

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Why did the Supreme Court hear this case?
jeka94

Answer:

which case??plessy vs. burgison?(or however you spell it)

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According to Éemile Durkheim, religion is: Group of answer choices a) a unified system of beliefs and practices related to profa
iVinArrow [24]

Answer:d) a unified system of beliefs and practices relative to sacred things.

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True or false the supreme court affects governmental change by interpreting cases
Anika [276]
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7 0
3 years ago
If, on average, each person fishing in your local lake catches 3.5 fish per fishing trip, with a standard deviation of 1.2, what
dangina [55]

Answer:

Mean of sampling distribution=3.5

Standard error of sampling distribution=0.219

Explanation:

We know that

The average of catching fish per fishing trip=μ=3.5

and

The standard deviation of catching fish per fishing trip= σ=1.2.

We have to find the mean and standard error of sampling distribution of 30 fishing trips i.e. μxbar=? and σxbar=?

Mean of sampling distribution=μxbar=μ=3.5

Standard error of sampling distribution=σxbar=σ/√n

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Standard error of sampling distribution=σxbar=1.2/5.4772

Standard error of sampling distribution=σxbar=0.219

Thus, the mean and standard error for a sampling distribution of 30 fishing trips are 3.5 and 0.219.

5 0
3 years ago
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3 years ago
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