Using the correct statistical method, decide which Group has the highest MEAN ? Does it significant ?

Q: In what research situation do you use an independent samples t-test?

A:

Q: what is the difference between sampling with replacement and without replacement?

A: Sampling with out replacement :  if a sample is drawn from a population and all units in population…

Q: Define sampling variability?

A: In general, variability is also called as range.

Q: Explain the meaning of the specified term Sample distribution

A: The distribution which is used to describe the sample data is called the sample distribution. In…

Q: What is the test statistic?

A: At Rachel's 11th birthday party, B-girls were timed to see how long ( in seconds ) they could hold…

Q: Determine the mean of all sample modes.  Based on your result, is the sample mode an unbiased…

A: Mean of all sample modes, Modes: 0,0,10, 0,0,0,0,10, 10, 10 Mean of modes= (10+10+10+10)/10 = 4

Q: The test statistic is:

A: 19. Here , we want to find the value of test statistic. Here we use the paired t-test. As per our…

Q: Does the sample size ? affect the mean of all possible sample means? Explain your answer.

A: According to central limit theorem, for large sample (>30) or if the population follows normal…

Q: what is a composite outcome rate in statistics?

A: Solution Composite outcomes, in which multiple end points are combined, are frequently used as…

Q: What information do you need to decide on a sample size that will provide adequate statistical…

A: Adequate statistical power is the power of probability with the rejected null hypothesis. Generally,…

Q: The sample statistic that is unbiased estimator is:

A: Note:Hey there! Thank you for the question. However, you have not posted a complete question.…

Q: How to calculate the sample correlation and covariance

A: Covariance and correlation are used to measure the linear relationship between two or more…

Q: Which one has samples that are the smallest sample size?

A: Given, 3 sampling distributions in the question comes from samples with the same population mean and…

Q: Define what is meant by sampling risk. Doessampling risk apply to nonstatistical sampling, MUS,…

A:

Q: 2. What is the importance of getting the sample size?

A:

Q: n an ANOVA source table – what do the terms “between groups” and “within  groups” refer?

A: G1 G2 G3 1 1 1 2 2 2 3 3 3 4 4 4

Q: What is a random sample?

A: Here use definition of random sample

Q: Define significance of Random sampling?

A:

Q: Write down the properties of Hypothesized Sampling Distribution.

A:

Q: What type of sample do we usually prefer?

A: We have given that  What type of sample do we usually prefer

Q: Find the sample variance and standard deviation. 6, 48, 15, 49, 38, 28, 34, 27, 32, 27

A: Formula to find sample variance is S2=∑Xi-X2n-1

Q: What are the steps for finding the relative frequency of sample means above or below a specified…

A: The sampling distribution of sample means is approximately a normal distribution because of the…

Q: What is the sampling distribution in estimating the variance of a population? What are the…

A: The estimation population variance of the sampling distribution, or

Q: 2. Using your own words, discuss how a correlated-groups ttest has more statistical power in…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Based on above sample what is the statistic?

A: Given that sample size is n = 100 And number of teachers in the sample have a Master's degree, X =…

Q: A professor is curious about the IQ of students at the Mindanao State University. The entire group…

A: We tell the entire group students is an example of a  Note: According to bartleby experts question…

Q: What is the sample size of adults participated in this study?

A: We have to find the sample size for the given situation.

Q: What is the sampling distribution of a statistic? Why is it important?

A: Sampling distribution of a statistic:The group of all reliable observation of a statistic for the…

Q: What is formula for sample mean?

A: The sample mean is also known as the average of the sample. The sample mean is a measure of central…

Q: what is the sample variance and standard deviation of 21​,16​,3​,9​,11

A: The formula for sample variance and standard deviation is given by:

Q: What does it mean when sample results are not statistically significant?

A: statistically significant: In principle, a statistically significant result (usually a difference)…

Q: what is the population variance and standard deviation of   10​,13​,17​,19​,21

A: The formula for population variance and standard deviation is given by:

Q: What is sample size?

A: In this case, we need to define the sample size.

Q: What type of sampling is used?

A:

Q: In a paired samples t test, explain the logic of difference scores (why do you need to find them to…

A: Paired t test:The paired t test is also defined as dependent- t test. It is used to test the mean…

Q: When is it appropriate to use a pooled sample test?

A: It is to determine when there is to use pooled sample test. There are some situation in testing we…

Q: What statistical methods are typically used in an inferential study?

A: There are two major parts in Inferential statistics, i. Estimation ii. Hypothesis Testing So, these…

Q: What is the value of SS for the following sample?  1,3,2,2?

A: Given, the sample 1,3,2,2 Thus n=4 The mean of the sample is obtained as- x=1+3+2+24=84=2

Q: Explain if there was a statistically significant difference between the group means. did you arrive…

A: Test is that whether there was a difference between the three means. Level of significance = 0.01

Q: Find the sample variance and standard deviation. 7, 57, 14, 50, 32, 23, 30, 27, 26, 26 O

A:

Q: find 2nd quartile for given data 12,15,14,6,9,7,5,3,4,15,25

A:

Q: What statistical test is most appropriate for comparing the proportions of two categories of two…

A: Z-test for two sample proportion is most appropriate to compare the proportions of two categories of…

Q: What is the sample and corresponding population in this study ?

A: Introduction: The study assigns ratings to the different social media platforms, depending upon…

Q: (a) Explain 3 methods of obtaining data from sampling? (b) What are two important aspects of…

A: a)  There are two types of sampling methods: Probability sampling involves random selection,…

Q: Explain in detail RANDOM ASSIGNMENT OF SUBJECTS.

A: Random assignment: A random assignment is a technique for placing participants to different groups…

Q: It is important to have a random sample to prevent data manipulation. O True False

A: This question can be solved by applying the concepts of random sampling.

Q: What is the sample for the study

A: The sample is the subset of the population.