The pulse rates of 167 randomly selected adult males vary from a low of 41 bpm to a high of 101 bpm. Find the minimum sample size required to estimate the mean pulse rate of adult males. Assume that we want 98​% confidence that the sample mean is within 4 bpm of the population mean. a. Find the sample size using the range rule of thumb to estimate sigma. n equals ​(Round up to the nearest whole number as​ needed.)   b. Assume that sigma equals 10.9 ​bpm, based on the value s equals 10.9 bpm from the sample of 167 male pulse rates. n equals ​(Round up to the nearest whole number as​ needed.)

Q: Scores for men on the verbal portion of the SAT-I test are normally distributed with a mean of 509…

A:

Q: A random sample of medical files is used to estimate the proportion p of all people who have blood…

A: we have to find sample size required for margin of error.

Q: Use the given information to find the minimum sample size required to estimate an unknown population…

A: Solution

Q: 1 A population has a mean μ = 87 and a standard deviation = 20 mean and standard deviation of a…

A: A population has a mean μ=87 and a standard deviation σ=26Then we'll find the sampling distribution…

Q: #of Occupants 1 2 3 0.70 0.15 0.10 0.03 0.02 What is the mean number of occupants in a vehicle? 45…

A: given data, here data table and their probabilities are given we have to find out the mean for the…

Q: A group of researchers wants to estimate the true mean skidding distance along a new road in a…

A: Data490352453196290405570435550384300430180264275402310314143426

Q: A population has mean =22 and standard devlation G- 20. Find u- and G- for samples of size n=100.…

A:

Q: use the given information to find the minimum sample size required to estimate an unknown population…

A: Standard Deviation = σ = 89 Margin of Error = E = 5 Confidence Level = 95 Significance Level =…

Q: Suppose the average amount of apples per tree in a large orchard is 600 pounds with a standard…

A: Concept of sampling distribution of sample mean: Let a particular characteristic of a population is…

Q: In calculating the sample variance, we subtract one from the sample size. This is because A. The…

A: Variance: The variance is the expectation of the squared deviation of a random variable from it's a…

Q: Determine the minimum sample size required when you want to be ​95% confident that the sample mean…

A: We have confidence level = 95%  sample mean is within one unit of the population mean i. e margin of…

Q: How many weeks of data must be randomly sampled to estimate the mean weekly sales of a new line of…

A: It is given that confidence level is 0.98, population standard deviation is 1,400 and margin of…

Q: Assume that a sample is used to estimate a population proportion μμ. Find the margin of error M.E.…

A: Given data, n=64 mean=70.7 sd=18.2 z-value at 99.8% confidence is Zc=3.10

Q: Calculate the sample standard deviation for this data set: 65, 48, 70. The formula for the sample…

A:

Q: The claim is that weights (grams) of pennies made after 1983 have a mean equal to 2.500 g as…

A: Answer - The claim is that weights of pennies made after 1983 have a mean equal to 2.5 g…

Q: . Assume prior studies have shown that about 60% of full - time students earn bachelor's degrees in…

A: b) When the prior estimate of the true proportion is known, the minimum sample size can be computed…

Q: find the minimum sample size and need to estimate the mean for the given values of c, sd, and margin…

A:

Q: Section 1. Suppose that you are a wildlife biologist studying morphological characteristics of sea…

A: We have given the morphological characteristics of sea turtles.The mean straight carapace length of…

Q: The annual earnings of 25 people with a high school diploma and 16 people with an associate’s degree…

A: We have given that  High School Diploma Associates degree X1 = $36,875 X2= $44,900 S1= $5475…

Q: Assume that a sample is used to estimate a population mean u. Find the margin of error M.E. that…

A: Given information Sample size (n) = 10 Sample mean x̅ = 33.8 Standard deviation (s) = 13.8…

Q: Next question Use the given information to find the minimum sample size required to estimate an…

A: The following information has been provided: The population standard deviation is σ=51. The margin…

Q: a. Explain what it would mean to make a type I error. Choose the correct answer below. A. A type I…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: Cadmium, a heavy metal, is toxic to animals. Mushrooms, however, are able to absorb and accumulate…

A: Test is that whether the mean cadmium level in the sample is less than the governments' safety…

Q: Use the given information to find the minimum sample size required to estimate an unknown population…

A:

Q: ACT Scores A survey of 1000 students nationwide showed a mean ACT score of 21.4. A survey of 500…

A:

Q: Assume the standard deviation of the heights of all five-year-old boys is 3.5 inches. How many…

A: Population standard deviation : 90% confidence interval for population mean. Margin of error : E =…

Q: Assume that a randomly selected subject is given a bone density test. Bone density test scores are…

A: Obtain the 7th percentile of the distribution.   The 7thpercentile of the distribution is obtained…

Q: A statistician uses which of these values to calculate the estimated standard error (SM) when…

A:

Q: A group of researchers wants to estimate the true mean skidding distance along a new road in a…

A: The true mean is denoted by .The sample size is .Sample data values are 488, 300, 350, 433, 456,…

Q: A survey was taken of the heights, in inches, of 20- to 29-year-old males. A simple random sample of…

A: Given info: A survey was taken at the heights in inches of 20-29 year old males. A simple random…

Q: Assume that a sample is used to estimate a population mean μ. Find the margin of error M.E. that…

A: Given that n=13,x¯=33.2,s=8.5,confidence level=0.98.

Q: Assuming that the data are normally distributed, A. Determine the z-score such that the area to its…

A: Solution: Data are distributed normally To find  : the- Z score

Q: Consider a sample data set with the summary statistics s= 112, Q = 58, and Qu = 203. %3D a.…

A: It is given that QU=203 and QL=58.

Q: Use the following information to answer the next three questions. An unknown distribution has the…

A: For the unknown population distribution, the distribution parameters are given as:The population…

Q: Calculate the standard score (z-score) of the given sample mean. Round your answer to two decimal…

A: Given,   Sample size = 66 Sample mean = 28 Population mean = 29 Population standard deviation = 8…