population standard deviation is equal to 7.68 and the sample size is 117, what is the margin of error for the corresponding 97% confidence interval to estimate the population mean? Use to calculate and round your answer to 2 decimals.

Q: Use the confidence interval to find the margin of error and the sample mean. (1.71, 1.99)

A: Solution:  Given data: confidence Interval = (1.71, 1.99) To find: 1.Margin of error 2. Sample mean…

Q: 4. This data set: 14, 8, 1, 7, 8, 4, 5, 13, 5, 9 has sample mean 7.4 and sample standard deviation…

A: T table is used to calculate the. Critical value

Q: Why do you use the sample standard deviation formula to get .04, rather than using the normal…

A: The question is why we are using  formula to find standard deviation instead of .Please note that we…

Q: A nursing home has 2000 patients. You sample 170 patients. Can you use the infinite standard…

A:

Q: Show and explain all steps in calculating the mean and standard deviation of the data set assigned…

A: The question is about descriptive statistics Given data : To explain : 1 ) importance of dividing…

Q: Find the margin of error if the sample proportion is 0.37 and the sample size is 300. on Consider…

A: Margin of error is the error due to random sampling. The margin of error decreases with increase in…

Q: A sport analyst wants to determine the mean salary of a Baseball player for 2015. He believes an…

A:

Q: Average words in a romance novel is 64,253 and the standard deviation is 17,467 assuming the…

A: μ = 64253σ = 17467

Q: The FDA claims that the mean nicotine content exceeds 31.0 milligrams for this brand of cigarette,…

A: It is given that that the confidence interval at a 90% level of significance is (26.79, 30.10). And…

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

A:

Q: you want to obtain a sample to estimate how much parents spend on their kids birthday parties. Based…

A: Population standard deviation =56.3Margin of error =E =1

Q: The mean of a test is 400 and the standard deviation is 75. It is normally distributed. A sample of…

A: 1] Mean μ=400 2] standard deviation σ=75 3] n=25 4] μx¯=400σx¯=σn=7525=15

Q: In the concept of Inter quartile range (IQR), it divides the whole data set into ---- parts. Select…

A: When a data has extreme values (highest and lowest values), its statistics is summarized by…

Q: Robert finished a triathlon in 64.5 minutes. Among all men in the race, the mean finish time was…

A: formula for z-score is

Q: i want to estimate the mean number of minutes that a 7 year old watches TV daily. How many kids…

A: Given data,σ=45E=15z-value at 99% confidence is Zc=2.576n=?

Q: The manager of a department store wants to estimate the average amount of money a customer will…

A:

Q: Let's say you have a sample of n = 30, and you know that X = 45 corresponds to z = 1.50 and X = 40…

A:

Q: The manufacturer claims that your new car gets 28 mpg on the highway. You suspect that the mpg is…

A:

Q: Use the confidence interval to find the margin of error and the sample mean. (1.57,1.97)

A: The objective of this question is to find the margin of error and the sample mean using the given…

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: In 1988, on the math SAT, the males taking the exam averaged about 500, while the females averaged…

A: From the provided information,

Q: Determine the margin of error. It has been determined with 95% confidence that the proportion of…

A: Given: 95% confidence interval is (0.78, 0.82) So, Lower limit = 0.78 Upper limit = 0.82

Q: Assume that adults have IQ scores that are normally distributed with a mean of 105 and a standard…

A: It is given that the mean is 105 and standard deviation is 15.

Q: Use the confidence interval to find the margin of error and the sample mean. (1.59,1.89)

A: Given data,Lower limit=1.59Upper limit=1.89Margin of error=?

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: You received a 74% on a quiz. You are curious about how you did in the class overall and want to…

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: Shawn Spencer says the average number of homicides in New York is more than 884 per year. Adrian…

A: Given n=62 Standard deviations=14.5 Mean=884

Q: Use the confidence interval to find the estimated margin of error. Then find the sample mean.   A…

A: Given confidence interval is Lower limit=48.1 Upper limit=78.7 margin of error=? Sample mean=?

Q: This problem is fill in the blank. Just choose the correct answers. Thank you for your help   A…

A: Hypothesis: A statement or assertion about a population parameter is known as Hypothesis. Null…

Q: What is the multiplier for an interval that estimates the proportion with  a. 88% confidence?  b.…

A: Confidence Interval: The form of the confidence interval is, CI = Point estimate ± Margin of error…

Q: Use the confidence interval to find the margin of error and the sample mean. (1.77, 2.01) The margin…

A: Margin of error= ?