wo measuring devices A and B were used to measure the muzzle velocity(in feet per second) of rounds fired from a 155-mm gun. For each round, 2 measurements of velocity were recorded. The researcher wanted to determine if there is difference in the measurement of the muzzle velocity between device A and device B. Determine if the sampling is dependent or independent.

Q: A rowing team consists of four rowers who weigh 18, 24, and 36 pounds. Find all possible random…

A:

Q: Marina sampled every 7th member of the population in her studies. What ty of sampling would she be…

A: We have given that,  Marina sampled every 7th member of the population in her studies. What typ of…

Q: A group of students got the following scores in a test: 6,9,3 and 7. Consider samples of size 2 that…

A: Note: In case of multiple questions, as per the guidelines answer to first question will be…

Q: The Canine Gourmet Company produces delicious dog treats for canines with discriminating tastes.…

A: Solution: Given information: X= 42  Process average R = 6  Process  average range  n= 8 sample size…

Q: High blood pressure has been identified as a risk factor for heart attacks and strokes the…

A: Determine the sampling distribution of p   The sampling distribution of p is determined below as…

Q: Consider a hypothesis test to decide if the mean hours of sleep achieved is different if hot tea is…

A: Type I Error:  A Type I error occurs when the null hypothesis is rejected when it is actually true.…

Q: A political analyst believes that a senator's recent decision to support a bill resulted in a drop…

A: Here, the claim is, senator’s recent decision to support a bill resulted in a drop of approval…

Q: HW try to test the die by rolling it 10 times then get the sum of each try. Find the Mean, Variance…

A: Let x denote the number of outcomet then sum of each try,  Σx= (1+6+6+5+5+5+3+4+2+4) = 41 Mean =…

Q: For what sampling distribution works for?

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

Q: Describe about the Sampling Distribution of z.

A:

Q: 1. You would like to estimate bacterial levels (specifically Escherichia coli) for a large shallow…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: number 3: identify the sampling technique used

A:

Q: What is the average diameter size used in the bridge design? Suppose 6 bolt locations in the design…

A: The average diameter size is defined as E(Y) = Σy. P(y) Where Y denotes the bolt diameter size.

Q: find sample coefficint of kurtosis of data. 5,12,1316,17,22,8,29,11,14,17

A:

Q: Describe the t test for 2 independent samples.

A: In order to assess whether there is statistical evidence that the related populationmeans are…

Q: Due to stress, many patients who undergo major elective surgery experience an increase in blood…

A: It is needed to find the appropriate statistical test.

Q: Let X, Y ~ N(μ, σ2) be independent. Does X+Y and 2X have the sample distribution? Explain.

A: Result used  If X and Y ~ N(μ, σ2) aX+bY~N(aμ+bμ, a2σ2+ b2σ2)

Q: Explain why the sampling distribution of the sample proj your steps and write down any assumptions…

A: The sampling distribution is the probability distribution of the statistics of the sample obtained…

Q: You want to understand the preference of the Horned Lizard. Please, define the hypothesis, make the…

A:

Q: Experience has shown that 15% of Tshwane municipal rates bills contain an estimated amount for…

A: Given          sample size =75        sample proportion P⏜ = 0.15And  1-P⏜ =1-0.15          1-P⏜…

Q: number 2: Identify the sampling technique used

A: The objective is to identify which sampling technique is used for given question 2.

Q: determine the sampling error if the grade point averages for 10 randomly selected students from a…

A: A sample is used to represent the entire population and to achieve it the sample should be large…

Q: What does Sampling Distribution of t represents?

A: A sampling distribution is a distribution of the likelihood of a statistic derived from a larger…

Q: Determine the type of sampling used to collect the data To determine how long people exercises…

A: There are four types of random sampling

Q: According to the text, a researcher studied the effects of concentrations of lead on the life…

A: Sampling is a way of selecting cases from a population.

Q: Roll a pair of die 36 times, and draw a bar graph of all the outcomes. Using the data, find the…

A: In question,  Given that a pair of dice is rolled 36 times. Then we'll find mean Variance and…

Q: With a paired-samples t test, you will usually compare the sample mean for the difference score to…

A: Paired t test: The mean of the same group at different times are compared. That is, sometimes…

Q: Caitlyn has to determine how many of the 120 employees in her work place has comprehensive car…

A: Total no of employees = 120 Sample = 40

Q: A rowing team consists of three rowers who weigh 18, 24, and 36 pounds. Find all possible random…

A: The all possible random samples of size 3 from a population of size 3 is 33 = 27 The given weights…

Q: When a sampling technique introduces a considerable amount of bias, increasing the sample size will…

A: Given:- In a sampling technique, a considerable amount of bias is introduced.  Increasing the sample…

Q: Q.No.3. Explain the advantage of mutiple sampling plan over single or double sampling. Answer:

A: Multiple sampling plan is an extension of single and double sampling plan.

Q: a random sample, this most likely made the data more accurate, but not precise O precise, but not…

A: 1):   Precise but not accurate  Explanation: In a high precision, low accuracy case study, the…

Q: Manually find the first quartile as explained in the lectures for the following values: 3, 6, 18, 6,…

A: Given that, 3, 6, 18, 6, 10, 4, 7

Q: Suppose an instructor wants to know the average height, gender distribution, academic performance…

A: According to the answering guidelines, we can answer only three subparts of a question and the rest…

Q: Calculate the probable outlier data points.

A: Lower quartile = 13 Upper quartile = 24.5

Q: Find the mean of the sampling distribution of p̂.

A: The population proportion is 0.16, and sample size is 400 patients.

Q: 4. Cluster Sampling: 5. Multi-stage sampling:

A: Sampling method is used to chose a sample from a large population to infer the information about the…

Q: The Sample Coefficient of Variation is

A: Convert data in raw data 1,1,1,2,2,3,3,4,4,4,4 We have to find sample coefficient of variation

Q: A marine biologist wants to estimate the average weight of a population of dolphins living in a…

A: Note: the options for the answers are not given. So, the answer is written in assumption. In order…

Q: as one variable decreases, the other variable increases as one variable decreases, the other…

A: We have given that,  A correlation coefficient of 0.05 means that?  We have to check the correct…

Q: Consider a population consisting of five values - 1, 2, 2, 4, and 8. Find the population mean and…

A: Assume that the population size as 5 with the values of 1, 2, 2, 4, 8.Population mean: X-bar=∑Xi/N…

Q: How much "error" is too much before you are no longer confident about your estimates or research…

A: Given information: Margin of error is defined as the half the width of the confidence interval.

Q: Las Vegas has seen increased competition from Singapore and Macau for customers in the casino resort…

A: Given Information :  Las Vegas has seen increased competition from Singapore and Macau for customers…

Q: You may need to use the appropriate appendix table or technology to answer this question. In 2017, a…

A: Given information: p=0.10, n=515 a)  The sampling distribution for proportion can be approximated by…

Q: a researcher decides to take a random sample of the population and determine the ALT levels of the…

A: From given information it is observed that the ALT levels of the population are normally…

Q: Illustrate Exact Sampling Distributions When the Errors Are Normally Distributed?

A:

Q: You want to gather some data about students at a local high school. Match the name of the sampling…

A: given

Q: A textile engineer is interested in measuring heat resistance for four different types of  threads…

A: Introduction: It is required to identify the type of study.

Q: Describe about the Sampling Distribution of t.

A: Sampling distribution is used to describe the sample statistic or any function of the sample, which…

Q: Estimate the parameter 'p' in the sampling from binonial

A: