Express the confidence interval 819.5±135.9 in interval form. Express the answer in either decimal format or as percents.

Q: A poll of 2108 U.S. adults found that 36% regularly used Facebook as a news source. Find the margin…

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Q: The confidence interval for a population porportion is (0.58, 0.78). What the the sample proportion…

A:

Q: The process that produces Purple Bars is intended to produce candy bars with a mean weight of 55 gm.…

A: Mean = 55Standard deviation = 0.9n = 59x' = 54.82

Q: population mean turtle weight. r answers as decimals, to two places ounces

A: Since population standard deviation is known, the critical value at 99% confidence value will be…

Q: A random sample of 42 cars in the drive-thru of a popular fast food restaurant revealed an average…

A: Answer - A random sample n =  42 cars in the drive-thru of a popular fast food restaurantrevealed an…

Q: Suppose we know that a confidence interval is (-.735, .125). Find the sample mean and the error…

A: Ans- Given,     a confidence interval is (-.735, .125). Find  the sample mean and the error bound.

Q: Hospital Noise Levels For a sample of 22 operating rooms taken in a hospital study, the mean noise…

A:

Q: If the Za/2= 1.56, find the percent (nearest whole number,  for the confidence interval

A: Here, Za/2=1.56. Procedure for finding the percent value corresponding to 1.56 from standard normal…

Q: To pain relief drugs are being considered. Random sample of eight doses of the first drug sure that…

A:

Q: The confidence interval for a population porportion is (0.53, 0.73). What the the sample proportion…

A:

Q: The confidence interval for a population porportion is (0.45, 0.63). What the the sample proportion…

A: The confidence interval for a population proportion is 0.45,0.63. The sample proportion is, p^=Upper…

Q: The confidence interval for a population porportion is (0.52, 0.78). What the the sample proportion…

A: Given that, Confidence interval for population proportion is (0.52, 0.78)

Q: Using the form p ̂ ±ME, express the confidence interval (0.870, 0.894).

A: The given confidence interval is,  (0.870, 0.894). The value of sample proportion is,

Q: A confidence interval for μ1 − μ2 can be constructed, write down the expression.

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

Q: Use the given confidence interval to find the margin of error and the sample mean.   ​(70.7​,85.7​)…

A: Use the given confidence interval to find the margin of error and the sample mean.   ​(70.7​,85.7​)…

Q: The mean amount of time it takes a kidney stone to pass is 15 days and the standard deviation is 4…

A: GivenMean(μ)=15standard deviation(σ)=4

Q: Express the confidence interval 75.9 % <p < 93.7 % in the form p + MoE. Here, "MoE" means "Margin of…

A: Given information: 75.9%&lt;p&lt;93.7%

Q: true proportion of voters in favor of a referendum is unknown period a random sample of 200 voters…

A: Formula : Point estimate = p̂= x/n

Q: The scores on a standardized test for 322 students in nontraditional math classes were compared to…

A: We have find given confidence interval..

Q: You measure 38 dogs' weights, and find they have a mean weight of 62 ounces. Assume the population…

A: Given mean weight of 62 ounces. standard deviation is 10.8 ounces. construct a 99% confidence level

Q: pose the mean of a given data set is 900.6 with a margin of error of 63.3. Write a confidence…

A: The confidence interval for the mean in the form of ± notation can be expressed as: CI = Sample mean…

Q: The sample mean is 32, the sample size is 16, sample standard deviation is 6, and the confidence…

A: Given information Sample size (n) = 16 Sample mean x̅ = 32 Standard deviation (s) = 6 Significance…

Q: Express the confidence interval 81.9%.   ±.   4.6%.  in interval form.

A: Confidence interval is the estimate of the interval of an unknown population parameter. It provides…

Q: According to a recent survey of 35 Canadians and 42 Americans it was found that Canadians drink a…

A: Null Hypothesis: H0: The mean amount of coffee drink by Canadians is same as Americans. Alternative…

Q: The confidence interval lower limit and upper limit for a population mean are (62.3, 67.3). What is…

A:

Q: The average measured verbal IQ (IQV) scores of children is 100.  In a sample of 20 children, the…

A: Population mean (µ) = 100Standard deviations (σ) = 18.5Sample size (n) = 20Sample mean (x̅) =…

Q: The combined SAT scores for the students at a local high school are normally distributed with a mean…

A: Given data,μ=866σ=159P(X&lt;862)=?

Q: ease show the full solution and proper notation and terminology. A community health association is…

A: Use Z critical value

Q: In a survey, 17 people were asked how much they spent on their child's last birthday gift. The…

A:

Q: Determine the point estimate of the population mean and margin of error for the confidence interval…

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Q: For each confidence interval procedure, provide the confidence level. (Round the answers to the…

A:

Q: The confidence interval for a population porportion is (0.57, 0.73). What the the sample proportion…

A: Given the confidence interval for a population porportion is (0.57, 0.73).That is, lower confidence…

Q: A doctor wants to estimate the mean HDL cholesterol of all 20- to 29-year-old females. How many…

A:

Q: For each confidence interval procedure, provide the confidence level. (Round the answers to the…

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

Q: Gabriel is studying the difference in time in seconds it takes a rat to get through a maze with and…

A: Given, The confidence interval for the difference between the times: [−7.14,−6.98][-7.14,-6.98]…

Q: You measure 37 dogs' weights, and find they have a mean weight of 50 ounces. Assume the population…

A:

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

A: We have to find confidence interval value.....

Q: A random sample of 43 cars in the drive-thru of a popular fast-food restaurant revealed an average…

A: given data n = 43x¯ = 19.65σ = 5.7696% ci for μ = ?

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.