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: What is the class width? O A. the difference between the largest frequency and the smallest…

A: The “class width” is the distance between the lower limits of consecutive classes.

Q: take the following scores from an interval scale and create a frequency table with all the…

A: For the given data create a frequency table with all the appropriate columns

Q: Which symbol is used to represent the sample mean? O M

A: We have to identify symbol used to represent sample mean.

Q: Find the population mean or sample mean as indicated.   ​Sample: 15​, 10​, 9​, 13​, 13

A:

Q: If the formula X= -x, is used to find the mean of the following sample, what is the value of n? 2,…

A:

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

A: Given: 32, 33, 21, 51, 44, 25, 35, 82, 55, 47, 52, 38, 39, 43, 48, 51, 53, 37, 40, 15 1) To find the…

Q: 1.) Determine the mean, median, mode and midrange of the data. R-

A: here given , total given data 14  n =14

Q: Find the population mean or sample mean as indicated.   ​Sample: 25​, 10​, 3​, 6​, 11

A: Given: Sample data: 25, 10, 3, 6, 11 Required: To find the population mean or sample mean as…

Q: Subject 1st 2nd #1 10 11 #2 4 6 #3 7 9 #4 6 5   a. Calculate the mean difference. b. Calculate SS…

A:

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: - Place the following scores in a frequency distribution table. Based on the frequencies, what is…

A: Given Solution:

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: Nationally, patients who go to the emergency room wait an average of 5 hours to be admitted into the…

A: One sample t-test: One sample t-test is used to test the significance difference between population…

Q: Identify the sampling technique used. A community college student interviews everyone in a…

A: According to the given information, we have Given that a community college student interviews…

Q: Find the sample mean for the given data set, 45,34,67,89,24

A: Answer: From the given data, 45,34,67,89,24 Sample size(n) = 5

Q: MEASURES OF CENTER: Start with the data values of 74 and 187.  Identify three additional data values…

A: Solution: From the given information, the two data values are 74 and 187.

Q: Draw a box and whisker plot for this sample 5 7 1 9 11 20 15

A: The box and whisker plot is a graphical method of displaying data. A box and whisker plot is…

Q: Construct the sampling distribution of the sample mean for the following population and with the…

A:

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

A: As per our guidelines we are suppose to answer only three subpartsGiven data…

Q: Find the sample mean for the given data: 8,11,13,5,16,21,9,13,17,5,3,18,16,14,23

A: Answer: Given sample values are, 8,11,13,5,16,21,9,13,17,5,3,18,16,14,23 Sample size (n) = 15

Q: 0.845 ľyx2 0.791 Txx2 = 0.371

A: Solution : Given : n=5             k =2          ryx1= 0.845          ryx2 = 0.791         rx1x2=…

Q: Here is a set of sample data. 72 89 51 85 12| 95 47 26 41 60 17 22 33 43 53 73 69 | 66 45 25 59 55…

A:

Q: MEASURES OF CENTER: Start with the data values of 74 and 187 and a mode of 87.  Identify an…

A: Mean and mode both try to measure the "central tendency" in a data set.  The goal of each is to get…

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

A:

Q: Find the sample mean for the following data: 27, 32, 21, 18, 20, 37, 38, 35

A: Answer: From the given data, The given data values are: 27, 32, 21, 18, 20, 37, 38, 35 Number of…

Q: The ages of a group of friends are listed: 40, 26, 59, 36, 21, 42, 41, 42. Using the given sample…

A: From the provided information, The data values are as follow: 40, 26, 59, 36, 21, 42, 41, 42 Sample…

Q: number of being taken by a sample f any measure cannot be found or does not represent the center of…

A: Sample size Sample data: 9, 11, 12, 12, 9, 10, 8, 8, 8, 8, 8, 8, 9.

Q: Find the midrange for the given sample data.

A: Given: Time (X) 14 21 27 38 47 57 61 67 74 75 85 93 132 152

Q: The ages of a group of friends are listed: 41, 26, 54, 36, 21, 42, 48, 42. Using the given sample…

A:

Q: 3. Determine the MEAN, MEDIAN, MODE, and MIDRANGE of the set of data below. Round answers to the…

A: Measures of central tendency measure the central or average value of a dataset. Measures of…

Q: Find the sample mean of the following data: 11, 23, 27, 04, 32, 37, 38, 45, 40, 08

A: Answer: From the given data, 11, 23, 27, 04, 32, 37, 38, 45, 40, 08 Sample size(n) = 10

Q: Find the sample mean for the given data set 45,68,72,89,23

A: Answer: From the given data, 45,68,72,89,23 Sample size(n) = 5

Q: Take the following scores from an interval scale and create a frequency table with all appropriate…

A: For the Given data,  create a frequency table with all appropriate columns

Q: For the following sample data, find M: 8 , 2, 2, 5, 3.

A: We have given that  8, 2, 2, 5, 3

Q: 11. 1,200 people visited the most recent car show in Atlanta. A company there wanted to do a survey…

A:

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

A:

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: Identify the type of sampling that is used in this statement.   To avoid working​ late, a quality…

A: Sampling is integral to inferential statistical analysis.