An instructor recorded the following number of correct items (in a quiz with 10 questions) for the 12 students present: 7, 4, 2, 2, 2, 9, 10, 6, 7, 3, 8, 5. What is the level of measurement of the data obtained?* a. Ordinal b. Ratio c. Interval d. Nominal   2. The purpose of stratified random sampling is to make certain that* a. the sample is more representative of the target population than the accessible population. b. the participants chosen for the study are the ones most likely to react to the treatment. c. every member of the population has an equal chance of being selected for the sample. d. the sample proportionately represents individuals from different categories of the population   3. In a simple random sample, a. each member in the population has a chance of being included in the sample. b. not all members in the population are given the chance of being selected. c. each member in the population has the same chance of being selected. d. each member in the population has a 50 percent chance

Q: The following values are the ages of all the people eating at a local pizzeria. 81, 74, 83, 53, 39,…

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Q: A student wants to determine the proportion of times a spun penny will land on heads. She spins a…

A: Solution: Given that: A student wants to determine the proportion of times a spun penny will land on…

Q: Find the mean of the sampling distribution of sample means using the given information. Round to one…

A: Mean()=76standard deviation()=14sample size(n)=49

Q: Find the population mean or sample mean as indicated. Population: 5, 1, 16, 12, 16 Select the…

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Q: What is the value of the SS for the following sample below? Sample: 1, 1, 1, 7

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Q: Find the sample mean. Sample: 6, 8, 12, 19, 25 O A. x 14 O B. x- 15 OC. p 14 O D. p=13

A: Given that,In a data set,6, 8, 12, 19, 25Total number of observations = 5

Q: Weights (in lbs.) of 24 male children in the age group of 7 to 9 years are recorded. 55, 53, 64, 63,…

A: Given :  The weights of 24 male children.

Q: Find the mean for the given sample data. Round your answer to one more decimal place than that used…

A: We know that mean m of data is given by         m=(sum of terms) ÷ ( no. of terms)

Q: Descriptive Measures Instructions: Use the following data set to find the sample statistics for the…

A: Given that  The five number summary of the data is

Q: What is the mode for the following sample of n = 11 scores? Scores: 1, 2, 2, 2, 3, 3, 4, 5, 6, 6, 7…

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Q: 3.80 Original sample: 17, 10, 15, 21, 13, 18. Do the values given constitute a possible bootstrap…

A: Bootstrapped sample: To estimate the parameter of the population sample is drawn repeatedly from the…

Q: The following set of data is from a sample of n=6. 6 59 6 3 13 O a. Compute the mean, median, and…

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

Q: Arandom sample of n= 100 observations is selected from a population with u = 29 and o = 23. Complete…

A: As the student wants answers for c,d,e & f only. So, providing solution of those only.

Q: A sample consists of the following n = 6 scores: -2, 3, -3, 1, -3, 4 What is the Z-score for the raw…

A: Given data set is -2,3,-3,1,-3,4sample size(n)=6

Q: A statistics student was interested in prices for used Mustang cars being offered for sale online.…

A: 1) Following the stated instructions, the bootstrap dot-plot of the median will look like is as…

Q: If the formula X=-x, is used to find the mean of the following sample, what is the value of n? 51,…

A: We have given that  The data are 51,37,83,44,52,19,99,7,36

Q: The following are the distances 9, 12, 16, 19, 19, 20, 27, 27, 28, 30, 32, 35, 35, 36 Notice that…

A: From the provided information, Number of observations (n) = 14 The data values are as follow: 9, 12,…

Q: 5. A researcher gathers a sample of 200 people, asks each one how many times they have been…

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Q: Find the best point estimate for the ratio of the population variances given the following sample…

A: n1 = 25n2 = 13s12 = 110.299s22 = 77.132

Q: From the sample statistics, find the value of p1 - p2, the point estimate of the difference of the…

A: From the provided information,

Q: Below we have the mean fitness score and sample size for three samples of participants:   Sample…

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Q: A company manufactured six television sets on a given day, and these TV sets were inspected for…

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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: The following are distances (in miles) traveled to the workplace by 17 employees of a certain…

A: (A) Obtain the Percentile P25 of the distances. The Percentile P25 of the distances is obtained…

Q: Find the population mean or sample mean Sample: 18, 10, 1, 12, 14 D Select the correct choice below…

A: The sample data is given as, 18,10,1,12,14. For the sample data the sample mean needs to calculated.…

Q: What is the name of the test used?

A: H0 : Die is fair H1 : Die is not fair

Q: Class Limits Frequency 86 - 90 6 91 - 95 22 96 - 100 45 101 - 105 22 106 - 110 5 a. Find the mean,…

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Q: ter screens were randomly selected from a large collection of computer screens in a company’s…

A: A sample is a part of the population, which is selected from the population and if the sample is…

Q: The midterm and final exam grades for a statistics course are provided in the data set below.…

A: Solution: We are given the z-scores for midterm and final exam. These are:z-score for midterm:…

Q: OSave & End Certify Lesson: 3.2a Measures of Dispersion 0/16 Correct Question 1 of 10, Step 1 of 3…

A: The formula for sample variance is given by: