The interval is a enter your response here​% confidence interval. ​(Round to one decimal place as​ needed.)

Q: Ninety-four percent of students said that cash is their top choice for a graduation gift. If 75…

A: It is given that sample size (n) is 75and the sample proportion value is 0.94.

Q: You're considering going to graduate school, and you would like to know how many people would…

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Q: f n=450 and X = 360, construct a 99% confidence interval.

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Q: Explain when you would use the paired-samples procedure to make confidence intervals  and test…

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Q: í 600 people sampled, 348 had kids.

A: Given that  Sample size (n) = 600 Had kids (X) = 348   We know that  Best point estimate (p)= xn…

Q: A survey of 100 americans found that 68% said they find it hard to buy holiday gifts that convey…

A: It is given that, p hat is 0.68 and the sample size (n) is 100.  The level of confidence is 0.90.

Q: A survey of 1,000 adults showed 58% believed the driving age should be changed from 16 years of age…

A: Provided information: Number of adults in a survey = 1000 58% believed the driving age should be…

Q: Translate the statement into a confidence interval. Approximate the level of confidence.   In a…

A: Given information N = 1200, Margin of error E = 0.03 p = 0.79

Q: THE INFORMATION BELOW REFERS TO THIS AND THE NEXT QUESTION. The heights of adult women in the…

A: A critical value is a point on the test distribution that is compared to the test statistic to…

Q: 2. A nutritionist wants to know the population proportion of Grade 1 learners who eat vegetables.…

A: We have given thatn = 1200x = 200p̂ = x/n = 200/1200 = 0.167Significance level (α) = 1 - 0.95 = 0.05

Q: A national polling organization surveyed 1000 Americans and found that 350 admitted to being guilty…

A: Given: x=350 n=1000 p^=xn=3501000=0.35

Q: What is the correct conclusion? O A. Since the interval contains the proportion stated in the null…

A: The correct conclusion is: If confidence interval contains value of parameter in null hypothesis…

Q: A poll of 1060 adults in a country was conducted by telephone. Of those surveyed, 169 had…

A: The sample size is 1060 and number of success is 169.

Q: How do I answer this question? Noise levels at various area urban hospitals were measured in…

A: We have given that,  Sample size (n) = 84 Sample mean (x-bar) = 61.2 Sample standard deviation (s) =…

Q: researcher wishes to estimate the proportion of college students who cheat on exams. A poll of 520…

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Q: When you have your blood pressure taken, the larger number is the systolic blood pressure.…

A: We need to construct the 95%95\% confidence interval for the difference between the population…

Q: Write a sentence in your lab report explaining the effect that adding the two new data points had on…

A: From the given information,Original data points = {60,31,50,48,50,54,56,62,53}New additional points…

Q: If n=27, (x-bar)=34, and s=3, find the margin of error at a 90% confidence leve Give your answer to…

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Q: 3. An instructor is administering a final examination. She tells her class that she will give an A…

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Q: A research group asked 4488 Americans how they fall asleep, and 536 of them fall asleep on their…

A: Obtain the 90% confidence interval for the percentage of all Americans who fall asleep on their…

Q: one with a 95% confidence level and the other with a 99.7% confidence level. Which interval is…

A: Confidence interval is probability, which refers that population parameter will fall within set of…

Q: When 290 college students are randomly surveyed, it is found that 120 own a car. Find a 99%…

A: Given that, x=120,n=290 The sample proportion is, Critical values: By using the standard normal…

Q: An e-business manager wants to estimate the mean exposure to a certain type of internet ads.…

A: The correct option is The confidence interval became longer.

Q: Kindly tell what is confidence interval in stats thanks.

A: An essential idea in statistics is a confidence interval (CI), which provides a range that, with a…

Q: 2. Consider the familial aggregation of cholesterol levels. Suppose cholesterol levels are assessed…

A: To test for the equality of the mean cholesterol levels of the two groups using R, we can perform an…

Q: Critical Value: Margin of Error: Lower Bound: Upper Bound: Interpret (context) OEM C *2 decimals *2…

A: * Hi! Thank you for the question As per the honour code, We’ll answer the first question since the…

Q: A national survey of 1000 adult citizens of a nation found that 18% dreaded Valentine's Day. The…

A: Solution: Given information: n= 1000 Sample size  p^= 0.18  Sample proportion of adult of citizens…

Q: Jake needs to score in the top 10% of his class to earn a physical fitness certificate.  The class…

A: Solution: The class mean is μ= 78, and the standard deviation is σ= 5.5.

Q: roportion of US adults who say they never exercise. Round your answers to three decimal places.…

A: Given that  n=1000 , p=20%=0.20

Q: Briefly discuss the meaning of a 95% confidence interval and a 99% confidence interval and how they…

A: A confidence interval is a range of values that quantifies the uncertainty or level of confidence…

Q: What would a histogram look like if the mean is 50 the median is 50 and the standard deviation is…

A: Mean is 50.Median is 50.Standard deviation is 1.6.

Q: State the equation for the 95% confidence interval?

A: The equation for confidence interval can be stated as: Here x̅ is the sample mean, Zα/2 is the…

Q: Several years ago, 50% of parents who had children in grades K-12 were satisfied with the quality of…

A: Given Data Sample Size, n = 1105 Number of successes, x = 491.0 confidence…

Q: A magazine provided results from a poll of 2000 adults who were asked to identify their favorite…

A: Given: A magazine provided results from a poll of 200 adults who were asked to identify their…

Q: Mark each statement TRUE or FALSE. For these problems, assume that to estimate average time spent…

A: It is given that the sample size is 10.

Q: Some students think that a 90% confidence interval contains 90% of the data. Use the list of data on…

A: As it is calculated that,  90% confidence interval for mean is,  (295753.6,464478.4)

Q: Describe when you would use a t-score instead of a z-score when finding a confidence interval.

A: Describe in what conditions t-score would be used instead of a z-score when finding a confidence…

Q: Translate the statement into a confidence interval. Approximate the level of confidence. In a…

A:

Q: B. Analyze and solve the following problem. The researcher wants to determine wheter the mean…

A: Given that  The researcher wants to determine wheter the mean lifespan of his specimen of 28 in…

Q: Use the sample data and confidence level given below to complete parts (a) through (d). A research…

A: Givensample size(n)=940x=570