The grade point averages for 10 randomly selected junior college students are listed below. Assume the grade point averages are

Q: In order to get patients opinion about the services provided to them by a hospital, a sample of 500…

A: A systematic type of sampling is the sampling in which every kth member is selected to gather a…

Q: A researcher decided to gather data from all 150 employees in a certain office instead of just…

A: A certain office has 150 employees. All of them are selected by a researcher to gather data from.

Q: what is sampling methods?   A large social media company wants to survey its users about their…

A: Sample is a small part (or) portion of the population. For example, to check the weights of male in…

Q: The students were subdivided into 4 different categories according to major, classification, gender…

A: Given that  The students were subdivided into 4 different categories according to major,…

Q: How many pupils from each year should be selected to give a stratified sample of 10%?

A: here use basic of stratified sampling method  sample size from each strata  = total sample sizetotal…

Q: Write a very brief description of the respondents using the output regarding total children ever…

A: Given the data of type of place of residence and total children ever born.

Q: If the population mean is 12.45, what is the mean of the sampling distribution of its means?    If…

A: It is stated by the Central Limit Theorem that when the sample size is large which means it is…

Q: describe the sampling distribution of the sample means in the histogram

A: A histogram of sample mean is given.

Q: Of 4105 students enrolled in Mineral County public schools (WV) in the academic year 2016-2017,…

A: We have to find type of statistics.

Q: An insurance company would like to determine the proportion of all medical doctors who have been…

A: Note- As per our policy we can answer only the first 3 sub-parts of a question. If you want…

Q: Find the sample mean. Sample: 20, 13, 4, 8, 10

A:

Q: To study the mean blood pressure of all people in her state, Christine samples the population by…

A: Convenience sampling can be defined as the method of sampling in which the researcher selects the…

Q: A tax auditor selects every 1000th income tax return that is received. Which sampling is used here?

A: A tax auditor selects every 1000th income tax return that is received. Here we will use Systematic…

Q: Given 1,400 freshmen students with 600 male students and 800 female students, describe the way you…

A: The population is of freshmen students =1400The number of male students in  Strata-1 =600The…

Q: Henry conducts a survey at his middle school to determine the students' favorite after-school…

A: There are four main types of probability sample. Simple random sample: In this, every member of the…

Q: Consider the sample consisting of the following nine results : 2.3, 7.2, 3.7, 4.6, 5.0, 7.0, 3.7,…

A: Given : Sample size (n) = 9 Data 2.3 7.2 3.7 4.6 5 7 3.7 4.9 4.2

Q: The sample should include men and women.

A: Margin or error = 0.02 z-critical value at 0.05 = 1.96

Q: Based on the histogram, draw the ogive (the cumulative frequency polygon) for the sample data.

A: The cumulative frequency for given frequency is, Number of hours worked per week Frequency…

Q: A school principal surveys 4 freshman, 4 sophomores, 4 juniors, and 4 seniors. For the situation…

A: We have to find correct answer for given data....

Q: What is the name of this type of sample?

A: In the method of convenience sampling, the individual samples are easily determined and do not…

Q: Consider the sample data: 125, 115, 112, 127, 112, 105.

A: Data set: 125, 115, 112, 127, 112, 105

Q: 1. The following scores of 7 statistics students were recorded 87, 85, 80, 78, 83, 86, 90 Find:…

A:

Q: Explain the Representative Sample from a Population in Which the Variables Are Related?

A: The population is the area of interest for which, one want to inquire the characteristics or trend.…

Q: Find the measure of dispersion of a random sample lengths of songs in a playlist. 3:42  3:40  3:50…

A:

Q: After a Sampling Plan is developed- what are the steps in sampling?

A: Sampling: In statistical analysis, the sampling is defined as selection of subjects from the…

Q: What is meant by the statement that the sample mean has a sampling distribution?

A: The parameters that describe a population, like mean, variance, and standard deviation, are already…

Q: A researcher wants to estimate voting trends of women in Texas. Which characteristic is needed in…

A: Here researcher interested in voting trends of women in Texas.

Q: Students in a statistics class at Penn State were asked, “About how many minutes do you typically…

A: 1) The assumptions necessary for performing the two-sample t-test, such that the results obtained…

Q: The Ministry of Health in the Canadian Province of Ontario conducted the Ontario Health Survey by…

A: Stratified sampling :- When we have Homogenous distinguishable sub-groups. Then the population is…

Q: What is Sample?

A:

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: Here are the shopping times (in minutes) for a sample of 15 shoppers at a particular clothing store:…

A: Given data is: 26, 23, 44, 41, 38, 35, 31, 28, 25, 37, 37, 34, 34, 34, 31

Q: Find the 5th and 95th percentiles for average temperatures from a group of 106 people using the…

A: The pth percentile of a set of observations is the value below which, p% or (p/100) proportion of…

Q: What constitutes each pair in a paired sample?

A: Paired t-test: The paired t-test, also known as the “dependent t-test”, is a statistical procedure…

Q: what is the median of the sample 5, 5, 11, 9, 8, 5, 8?

A: Given 5, 5, 11, 9, 8, 5, 8

Q: Use the Venn diagram to identify the population and the sample. Incomes of Adults in New Jersey…

A: If all units in a group are included in a study to make conclusion about the group, then it is…

Q: If 40% of all the students are taking four classes, and 60% of all the students are taking three…

A:

Q: How many different letter arrangements can be made from the letters in the word STATISTICS?

A: Given word is STATISTICS Here, Total words are 10 S is repeating 3 times T is s repeating 3 times I…

Q: What does a sampling distribution serves?

A:

Q: Explain the four different types of sampling and give an example of each.

A: Different types of sampling methods with examples.Types of random samplings(1) Simple random…

Q: The following are the scores of 10 students in a 50-item quiz.   42, 38, 33, 46, 42, 40, 38, 36,…

A: Given  Score of 10 students  Xi: 42, 38, 33, 46, 42, 40, 38, 36, 45,43 To find mean score of…

Q: What is the composite scores

A: Composite score is the average score. For the three students composite score=total score or raw…

Q: Suppose the 58 scores on a Statistics test were as follows: 22, 37, 45, 30, 48, 29, 33, 46, 20, 35,…

A: Frequency distribution table : A distribution table may be a graph that shows the frequency of…

Q: Consider a sample with data values of 27, 25, 20, 15, 30, 34, 28, and 25. Provide the fivenumber…

A: In statistics, various types of variables are studied. There are two types of variables that are…

Q: In my survey I asked how many people they have dated in their lives and I gave them a choice of 0,…

A: Generally there will be less people who have dated more than 7 people in their lives.    Most of…

Q: What is the sample for the study

A: The sample is the subset of the population.

Q: Define a test procedure, based on sample data, for deciding whether to reject H0?

A: Explanation: t-test for population mean:

Q: The sample mean X is a point estimate of the

A: Population is the whole set of observations that are used for study. Sample is the subset of the…

Q: Define Sample?

A: Sample is defined as small set of data that is chosen from large population by using predefined…