From an English class of 18 students using programmed materials, 10 are selected at random and given additional instruction by the teacher. The results on the final examination were as follows: Grades in the Final Examination Additional No With Additional Instruction Instruction 87 75 91 78 85 81 80 85 86 72 85 80 81 81 85 85 73 79 Test the significance of the difference between the two medians at alpha = 0.05. Use 2 decimal places in the final answer STATISTICS: COMPUTED VALUE: TABULAR VALUE: K

Q: Define the following statistical terms: a.Statistics:

A: Introduction: Population of interest: The population of interest includes all the individuals of…

Q: and o μ=83, o = 18, n=81 Determine H 4=0 from the given parameters of the population and sample…

A: Given that μ=83 & n=81 & σ=18

Q: from the given parameters of the population and sample size. and o Determine H-31, a =14, n-26…

A: We have to find out given data of parameter of the population and sample size..

Q: If Quartile 3 = 35 and Quartile 1 = 25 in this case what will be the value of Quartile 2?

A:

Q: Which is the correct answer? The role of the covariate is to:  a.  Compare variables of interest…

A: Covariate: Covariates aredefined as the participants in an experiment. It is an independent…

Q: Do we need the population to be normal or the sample size n to be large to claim that µX = µ and oX=…

A:

Q: Which test would be appropriate if you had an ordinal variable in your study? a. chi-square test…

A: Followings are the Explanation of the question 1) when the data follows the Normal distribution then…

Q: a. Is there a significant difference on the ratings of the respondents on Product Line-X11) when…

A: Given information: The tables obtained using SPSS output are given.

Q: and ox o from the given parameters of the population and sample size μ=72, o=19, n = 33 Determine Px…

A: given data μ = 72σ = 19n = 33we have to find mean and sd of sampling distribution

Q: Given below are the BMI statistics for random samples of males and females. 0.05. Test the claim…

A: From the provided information, n1=40x1=28.44075s1=7.394076n2=40x2=26.6005s2=5.359442α=0.05

Q: Which of these two research objectives may be addressed with Chi-Square test for multiple…

A: Chi-square test for multiple proportions compare the difference between the population proportion of…

Q: Determine Px and ox from the given parameters of the population and sample size. μ= 44, o = 24, n=…

A: μ=44σ=24N=32

Q: The poplar wet iined from trees planted in a ich and mIoist region. The trees were given different…

A: Solution: Given data is

Q: A paired difference experiment produced the accompanying results. Complete parts a through e. nd =…

A: Step 1:Given:nd = 34x̄1 = 90.5x̄2 = 95.7x̄d = -5.2s2d = 23s = √23 = 4.80 Step 2:(a) Determine the…

Q: The Fish and Game Department stocked a lake with fish in the following proportions: 30% catfish, 15%…

A: From the provided information, The proportions of fish are as follow: 30% catfish, 15% bass, 40%…

Q: For a sample of size 300 from a population with the population proportion, p = 0.45, compute ?? ℎ??…

A: Consider that p is population proportion.

Q: Pick one method to be used:  Chi-Square Test Mann Whitney U Test  Spearman Rank and Friedman Test…

A: Given the data of a group of six subjects, each taught using three different methods of teaching…

Q: Which of the following typically uses larger samples and is thus typically more statistically valid?…

A: Qualitative study typically involves non random sampling whereas quantitative study requires that…

Q: 9. How does sample size affect standard error?

A: In statistical inference an investigator wants to know about the population parameters. But for…

Q: Pick one method to be used:  Chi-Square Test Mann Whitney U Test  Spearman Rank and Friedman Test…

A: Given :

Q: The accompanying data are the weights (kg) of poplar trees that were obtained from trees planted in…

A: As per guidelines, we will only answer first question, please repost other questions for more…

Q: Which type of analysis would you run to answer the question.   eg. Chi square goodness of fit, one…

A: Selection of the appropriate test statistic is subject to validation of different assumptions.

Q: se the sample data below to test the hypotheses Ho: Pi = P2 = P3 H : Not all population proportions…

A: Given : Hypothesis: H0: p1=p2=p3Ha: Not all population proportions are the same

Q: Your research question involves two samples and a comparison of means. What test does this lead you…

A: Paired t-test can be defined as a statistical technique that can be used to decide whether the mean…

Q: Suppose that a political campaign by Loki estimates that the candidate’s polling percentage y and…

A: The candidate’s polling percentage is denoted by 'y'.The amount is denoted by x (in hundred…

Q: It reflects the characteristic that changes from one individual to another (select the appropriate…

A: Sample is a set of values taken from a population. For example: taking a sample of size n from a…

Q: Answer the following questions using the calculator image below: TInterval Inpt:Data Stats :36…

A: We want to tell you which one is the correct choice. Given n=16

Q: kindly answer the questions in the picture

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

Q: 18.  We want to study the relationship between size (sq. m) and the price of houses. We randomly…

A: Given regression output of  size (sq. m) and the price of houses 1) The 95% confidence interval for…

Q: The following details are available with regard to a test of hypothesis for the population mean:…

A:

Q: To determine whether there is a systematic difference between the weights obtained with two…

A: Solution-: To determine whether there is a systematic difference between the weights obtained with…

Q: Sand and clay studies were conducted at the West Side Field Station of the University of California.…

A: Arranging the data into ascending order: 0.1, 1.7, 8.4, 16.4, 18.2, 19.5, 24.2, 24.8, 27.3, 27.4,…

Q: What is the level of measurement for the dependent variable? Are the samples dependent (matched) or…

A: Each hypothesis test has two statements, they are null and alternate hypothesis. Null hypothesis is…

Q: If the current value for XI and Xu while using the Bi-section method are 4.1 and 5.3 respectively,…

A: Given: Xl=4.1 Xu=5.3

Q: A multiple comparison procedure is done to determine if any two populations are significantly…

A: |p1 − p2| = |0.528-0.44| = 0.088

Q: Scenario: 200 people were asked, “Who is your favorite superhero?” Below are the data.  Test the…

A: Given, Sample size: N=200 people were asked, “Who is your favourite superhero?” Test the null…

Q: X μ=89, o = 32, n = 64 II

A:

Q: A die was rolled 360 times and the results were: No. of Spots (outcomes) Frequency 1 54 2 70 58 62…

A: The number of times a die is rolled=360 No. of spots(Outcomes) Frequency 1 54 2 70 3 58 4…

Q: the following table:       Seed A Seed B Seed C Total Germinating 47 10 125 182 Not…

A: Here we can see that the above table of 2 * 3 contingency table. We will use this contingency table…

Q: Column titles in a table should describe which of the following? A) The independent variable B) The…

A:

Q: xamine your t-test score in the paired samples t-test table. Is the p value significant? State in…

A: Given : Wit 99 degree of freedom, the T-statistic score = 20.259