Nearly one-half of Filipinos aged 25 to 29 are unmarried. How large a sample is necessary to estimate the true proportion of unmarried Filipinos in this age group with 3% points with 99% confi

Q: Out of 500 people sampled, 380 had kids. Based on this, construct a 90% confidence interval for the…

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Q: In a sample of 310 adults, 205 had children. Construct a 99% confidence interval for the true…

A: Given data, n=310 x=205 p=x/n=205/310=0.661 z-value at 99% confidence is Zc=2.576

Q: Out of 200 people sampled, 188 had kids. Based on this, construct a 95% confidence interval for the…

A: Given information- Confidence level, c = 95% Sample proportion is,

Q: A newsgroup is interested in constructing a 99% confidence interval for the proportion of all…

A: Solution: a. Let X be the number of Americans in favor of the initiative and n be the number of…

Q: What sample size should be obtained if he wants to be within 4 percentage points with 95​%…

A: Given that the margin of error is 4 percentage points. That is, ME=4%=0.04 Confidence level =95% The…

Q: Out of 300 people sampled, 45 had kids. Based on this, construct a 90% confidence interval for the…

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Q: A psychologist is interested in constructing a 95% confidence interval for the proportion of people…

A: For the given data Find a.  With 95% confidence the proportion of all people who accept the theory…

Q: A psychologist is interested in constructing a 90% confidence interval for the proportion of people…

A: It is given that psychologist is interested in constructing a 90% confidence interval for the…

Q: In a sample of 490 adults, 269.5 had children. Construct a 90% confidence interval for the true…

A: Given: n=490 Let x be the children = 269.5 p=xn=269.5490=0.55 The critical value at 0.1 level of…

Q: Out of 200 people sampled, 82 had kids. Based on this, construct a 90% confidence interval for the…

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Q: newsgroup is interested in constructing a 99% confidence interval for the proportion of all…

A: Given data,n=600x=389Construct a 99% confidence interval?

Q: In a sample of 130 adults, 90 had children. Construct a 99% confidence interval for the true…

A: Introduction: The 100 (1 – α) % confidence interval for the population proportion, p is: Here, n is…

Q: A researcher wishes to estimate the proportion of adults who have​ high-speed Internet access. What…

A:

Q: A psychologist is interested in constructing a 95% confidence interval for the proportion of people…

A: Given that

Q: In a sample of 120 adults, 106 had children. Construct a 99% confidence interval for the true…

A: We have given that,  Favorable cases (X) = 106 and sample size     (n) = 120 Then,  We will find the…

Q: t of 500 people sampled, 180 had kids. Based on this, construct a 95% confidence interval for the…

A: Given data,n=500x=180construct a 95% confidence interval?

Q: A psychologist is interested in constructing a 90% confidence interval for the proportion of people…

A: Obtain the 90% confidence interval for the proportion of people who accept the theory that a…

Q: A business student is interested in estimating the 99% confidence interval for the proportion of…

A: Here, confidence level is 0.99 and margin of error is 0.04.

Q: A recent study indicated that 24% of women over 55 are widows. A researcher wishes to estimate with…

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Q: In a sample of 160 adults, 130 had children. Construct a 90% confidence interval for the true…

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Q: t was believed that 25% of the students have internet connection at home. How large a sample is…

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Q: With 90% confidence the proportion of all people who accept the theory that a person's spirit is no…

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Q: In a sample of 320 adults, 288 had children. Construct a 95% confidence interval for the true…

A: Here, the number of adults had children, x is 288 and the sample size, n  is 320. The known values…

Q: Suppose that you take 1000 simple random samples from a population and that, for each sample, you…

A: Given information Sample size n = 1000 Confidence interval = 95%

Q: t poll, 240 people were asked if they liked dogs, and 35% said they did. Find the Margin of Error…

A: Given: n = 240 p^=35%=0.35 The value of z at 95% confidence level is 1.96, which can be obtained by…

Q: Out of 200 people sampled, 166 had kids. Based on this, construct a 90% confidence interval for the…

A:

Q: Out of 300 people sampled, 204 had klds. Based on this, construct a 95% confidence Interval for the…

A: Solution: Let X be the number of people had kids and n be the sample number of people. From the…

Q: A scientist claims that 65% of U.S. adults believe humans contribute to an increase in global…

A: Given  A scientist claims that 65% of U.S. adults believe humans contribute to an increase in global…

Q: Out of 100 people sampled, 48 had kids. Based on this, construct a 95% confidence interval for the…

A: Find z-critical value:…

Q: You are interested in constructing a 90% confidence interval for the proportion of all caterpillars…

A:

Q: Out of 400 people sampled, 304 had kids. Based on this, construct a 95% confidence interval for the…

A:

Q: A newsgroup is interested in constructing a 90% confidence interval for the proportion of all…

A: Confidence Interval: In statistics, we can say a range of values of the specified population…

Q: How large a sample is needed to estimate the true proportion of these children getting adequate…

A: It is given that Proportion p = 0.45 Margin of error E = 0.025 Level of confidence = 0.99 The…

Q: A psychologist is interested in constructing a 90% confidence interval for the proportion of people…

A: (a) The value of p^ is obtained as follows: p^=63/810=0.078. Using standard normal table, the value…

Q: Out of 600 people sampled, 30 had children under the age of 18. Based on this, construct a 99%…

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Q: Out of 600 people sampled, 228 had kids. Based on this, construct a 90% confidence interval for the…

A:

Q: A newsgroup is interested in constructing a 95% confidence interval for the proportion of all…

A: The sample proportion is, p^=xn=370504=0.7341 The sample proportion of all Americans who favor the…

Q: Out of 200 people sampled, 186 had kids. Based on this, construct a 90% confidence interval for the…

A: Given  The sample size n is 200. The people had kids x is 186. Calculation: p^=xn  =186200  =0.93…

Q: In a sample of 470 adults, 306 had children. Construct a 99% confidence interval for the true…

A:

Q: Suppose we want to know what proportion p of students in a large university have studied calculus in…

A: Given,E=0.03z value at 95% confidence is Zc=1.96let the proportion be p=0.5n=?

Q: Out of 600 people sampled,  510 had kids. Based on this, construct a 90% confidence interval for the…

A: It is given that Out of 600 people sampled,  510 had kids.

Q: In a sample of 570 adults, 485 had children. Construct a 95% confidence interval for the true…

A: The sample size is 570. The number of successes is 485. We have to construct 95% confidence interval…

Q: A nationwide poll of 2,525 adults estimated with 95% confidence that the proportion of Americans who…

A: The margin of error depends on the three factors: Level of confidence: The margin of error…

Q: How large a sample is needed if we want to believe 98% that the proportion of the sample found lies…

A:

Q: In a sample of 510 adults, 464 had children. Construct a 95% confidence interval for the true…

A: Given that in a sample of 510 adults, 464 had children. 95% confidence level

Q: Out of 200 people sampled, 84 had kids. Based on this, construct a 95% confidence interval for the…

A: Correct answer is  0.351 <p< 0.492

Q: A psychologist is interested in constructing a 95% confidence interval for the proportion of people…

A:

Q: Out of 600 people sampled, 120 had kids. Based on this, construct a 99% confidence interval for the…

A: Given  p^=sample proportion of kids in the sample of people=120600n=sample size=600Confidence…

Q: A newsgroup is interested in constructing a 95% confidence interval for the proportion of all…

A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.