A psychologist is interested in constructing a 90% confidence interval for the proportion of people who accept the theory that a person's spirit is no more than the complicated network of neurons in the brain. 68 of the 807 randomly selected people who were surveyed agreed with this theory. Round answers to 4 decimal places where possible.a. With 90% confidence the proportion of all people who accept the theory that a person's spirit is no more than the complicated network of neurons in the brain is between___and___ .b. If many groups of 807 randomly selected people are surveyed, then a different confidence interval would be produced from each group. About__ percent of these confidence intervals will contain the true population proportion of all people who accept the theory that a person's spirit is no more than the complicated network of neurons in the brain and about____ percent will not contain the true population proportion.

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Asked Feb 4, 2020
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A psychologist is interested in constructing a 90% confidence interval for the proportion of people who accept the theory that a person's spirit is no more than the complicated network of neurons in the brain. 68 of the 807 randomly selected people who were surveyed agreed with this theory. Round answers to 4 decimal places where possible.


a. With 90% confidence the proportion of all people who accept the theory that a person's spirit is no more than the complicated network of neurons in the brain is between___and___ .


b. If many groups of 807 randomly selected people are surveyed, then a different confidence interval would be produced from each group. About__ percent of these confidence intervals will contain the true population proportion of all people who accept the theory that a person's spirit is no more than the complicated network of neurons in the brain and about____ percent will not contain the true population proportion.

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Expert Answer

Step 1

(a)

The value of p^ is obtained as follows:

Statistics homework question answer, step 1, image 1
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Step 2

From the output, the value of z* is 1.645 for 90% confidence.

...

Statistics homework question answer, step 2, image 1
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