Translate the statement into a confidence interval. Approximate the level of confidence.   In a survey of 1000 adults in a​ country, 78​% think teaching is one of the most important jobs in the country today. The​ survey's margin of error is ±4​%.   **PLEASE give four decimal points

Q: A survey was conducted that asked 1008 people how many books they had read in the past year. Results…

A: Given X-bar=11.8 S=16.6

Q: to interpret our confidence inter

A: Given: Assumed confidence level = 0.95 Sample size (n) = 40 The given dataset is 299000 75000…

Q: The level of confidence is %.

A: In a sample of 80 light bulbs, the mean lifetime was 1217 hours with a standard deviation of 53…

Q: Daniel Oliva stored data files of the fuel efficiency of his Ford car. After the first 100 times he…

A: The below is the formula for confidence interval about true mean…

Q: From a random sample of 64 high school seniors, the sample mean and standard deviation of the math…

A: Given,sample size(n)=64sample mean(x)=90standard deviation(s)=7degrees of…

Q: What does brand loyalty mean to consumers? According to a recent research report, 41% of consumers…

A: Due to bartleby policy i can solve only three subpartsWhat does brand loyalty mean to consumers?…

Q: 3. Confidence level : 99%, degree of freedom = 0, & = 0, s = 1 4. Confidence level : 99%, degree of…

A: Q4 Given that  99% confidence level  x=10 s=0.1 degrees of freedom=4 Q5 Given that  99% confidence…

Q: The mean hours of worked for United Airlines pilots is 46 hours/month based upon a sample of 25…

A: Given: Sample size, n=25 Sample mean, X=46 hours Sample standard deviation, s=3 hours The level of…

Q: 38. A student wanted to construct a 95% confidence interval for the mean age of students in her…

A:

Q: In 2011 the U.S. Department of Transportation reported with 95% confidence that the average length…

A: We have to find confidence Iinterval

Q: Define the confidence level?

A: It is the likelihood of containing the true population parameter under the confidence interval when…

Q: 0.695 0.873 1.083 1.356 1.782 0.694 0.87 1.079 1.35 1.771 0.692 0.868 1.076 1.345 1.761 0.691 0.866…

A:

Q: In a survey, 32 people were asked how much they spent on their child's last birthday gift. The…

A:

Q: Albert, a student of statistics, considered a random sample of the duration of 100 phone calls. He…

A: Given: Sample size (n) = 100 Confidence level = 0.95 2 confidence intervals are constructed at 95%.

Q: is 80 a suspect outlier

A: Here given,  One indicator of an outlier is that an observation is more than 2.5 standard deviations…

Q: The average and standard deviation for ACT scores are 20 and 3 respectively. average and standard…

A:

Q: What type of educational background do CEOs have? In one survey, 344 CEOs of medium and large…

A:

Q: A random sample of 1005 US adults were asked whether nuclear weapons owned by the US made them feel…

A: We have given that,  Favorable cases (X) = 543 and sample size    (N) = 1005  Then,  We will find…

Q: It is desired to investigate whether there is a difference between Covid cases in 3 provinces. Find…

A: Assign rank corresponding to each observation in order of their magnitude and then take the sum of…

Q: If you think a data point is an outlier, what test can you perform to see if you should omit the…

A: Given that the number of data points in the set is 8.

Q: In a survey, 18 people were asked how much they spent on their child's last birthday gift. The…

A: The summary of statistics is, x¯=30,s=16,n=18 The degree of freedom is, df=n-1   =18-1   =17…

Q: Please do Part D, E, F, G. The answers for part A,B,C are given to help. QUESTION: A national poll…

A: (d)   Determine whether the 94% confidence interval provides good evidence that the actual…

Q: In general, when you increase the confidence level for a confidence interval using the same sample…

A: As confidence level increases critical value is going to increase .  Here they given sample…

Q: Convert the estimate and your confidence interval to Percents. Discuss reasons the estimate might be…

A: We have to convert the estimate and confidence interval into the percentage.

Q: Please answer math question

A: Solution: Let X be the diet lost. From the given information, n=42, x-bar=7.2 kg, S=3.9 kg and the…

Q: Student 1 Student 2 Student 3 Student 4 Student 5 Student 6 Student 7 Student 8 Student 9 Height…

A: Given α=0.05nH=9nW=9 Define: X¯H=mean height of the sample of students X¯W=mean weight of the…

Q: Listed below are student evaluation ratings of courses, where a rating of 5 is for "excellent." The…

A: Given,sample size(n)=15mean(x¯)=3.93standard deviation(s)=0.6239degrees of…

Q: Consider a drug that is used to help prevent blood clots in certain patients. In clinical trials,…

A: Note: As per our guidelines, we can answer only first question. Kindly re-post the other questions…

Q: Drvals for the population mean. Interpret the results and compare the widths of the confidence…

A:

Q: 5. A reward will be given for those who scored 3 standard deviations above the mean. Name the…

A: Given that    Students  Score  1 24 2 26 3 32 4 37 5 38 6 35 7 33 8 38 9 37…

Q: The distribution of the scores on a standardized exam is approximately normal with mean 400 and…

A: The two values of Z that will contain 50% of scores lie are obtained as shown below:From the…

Q: A researcher collected sample data for 9 women ages 18 to 24. The sample had a mean serum…

A: Solution: Let X be the serum cholesterol level of all women in the age group 18 to 24. From the…

Q: Describe about the INTERPRETATION OF A CONFIDENCE INTERVAL.

A: Confidence Interval: Confidence interval is the interval estimate of the population parameter. It is…

Q: Get an education: In 2012 the General Social Survey asked 844 adults how many years of education…

A: From the provided information, Sample size (n) = 844 Sample mean (x̄) = 8.54 Standard deviation (s)…

Q: please give some detailed solution and please do not copy other's work,thanks!! According to a union…

A:

Q: 2. A company makes parts for a machine. The length of the parts must be within certain limits or…

A:

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.