There is a significant relationship between the data sets at the 55% significance level. There is Ya signiticant relationship between the cata sets at the 1% significance level.

Q: Does the sample median tend to target the population variance

A: If the original distribution is normal, the sample mean will also be normal, with variance , where n…

Q: If the sample size is 30 for each group, there are 3 groups, and the mean score for football players…

A: Given data SSbetween = 60SSwithin = 105dfbetween = 3 dfwithin = 60α = 0.05Critical value of F is…

Q: To determine if a training program has improved the average performance of trainees if data is…

A: Independent samples are known as the samples that are selected randomly so that the observations…

Q: the

A: Effect size is defined as the way of quantifying the difference between the two groups.

Q: What is the best correlational test to use in SPSS for a research sample size of 39?

A: A correlation coefficient is a value that shows how closely two sets of measurements are related. It…

Q: Listed below are "likability" ratings made by participants in a speed dating session. Use a 0.05…

A: It is required to test whether the male ratings are less than female ratings. The difference between…

Q: Use the same scale to construct boxplots for the ages of the best actors and best actresses from the…

A: I solve this problem using technology,

Q: What statistical test should she use to analyze the data?

A:

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: Compute the 1st quartile, 3rd decile and 20th percentile from the ffg. data: 3, 13, 11, 11, 5, 4, 2

A: Given : Data 3 13 11 11 5 4 2

Q: Which of the 3 measures of central tendency will help a teacher determine the tardiest student in…

A: for tardiest student in the class: 1) Mean 2) Median 3) Mode

Q: wild bears were​ anesthetized, and then their weights and chest sizes were measured and listed in a…

A: Given data  P value=0.000, level of significance=ɑ=0.05, r=0.978552

Q: If a researcher  decides  to use the .10 level of significance rather than using the conventional.…

A: Relationship between Type I error, Type II error and level of significance:   For small…

Q: What does The level of significance spotlights?

A: Level of significance is used in hypothesis testing. It is defined as the Type I error. The symbol…

Q: The use of cellular phones in automobiles has increased dramatically in the last few years. Of…

A: If calculated chi-square< critical value of chi-square then we fail to reject null hypothesis and…

Q: Is there a relationship between scores on the combat exposure scale and Davidson trauma scale in a…

A: One should first know the definitions of these scales before proceeding with the answer. Combat…

Q: What is Two Related Samples?

A:

Q: If remedial measure is applied to address the problem of multicollinearity in the model, do you…

A: Multicollinearity (MColl) exists when independent variables (IVs) are dependent on each other.

Q: Is there any skewness suggested by the mean, mode and median of the ungrouped data?

A: Skewness means lack of symmetry. The values of mean, median and mode fall at different points, they…

Q: The use of cellular phones in automobiles has increased dramatically in the last few years. Of…

A: Given:     had did not have  Total use  47 320 367 do not use  42 221 263 Total 89 541 630

Q: a. Is there a statistically significant relationship between gender and party preference? b. Compute…

A: The following information has been provided :   Male Female Total Democrat 10 15 25…

Q: 54 wild bears were​ anesthetized, and then their weights and chest sizes were measured and listed in…

A: The correlation coefficient tis 0.969.

Q: Which variable pair (in part a or b or c) has a stronger association according to the comparison of…

A: Given information: The scatterplots and correlation coefficients are given.

Q: α is the observed level of significance whereas the p-value is the preset level of significance.…

A: We have given that, α is the observed level of significance whereas the P- value is the preset level…

Q: Is there a difference in the satisfaction rating of traditional cellphone providers who bill for…

A: Given: The number of sampled data values of traditional cell phone providers is 10 and 13 prepaid…

Q: Use the same scales to construct boxplots for the pulse rates of males and females from the…

A: Procedure to obtain boxplot using Excel: Enter the data of Men's pulse rates in an excel sheet. Go…

Q: Describe one of the two scenarios in which a related samples t-test is the appropriate test of…

A: Two samples are said to be independent if the sample values selected from one population are not…

Q: Report an appropriate hypothesis test for a positive linear relationship and use a 5% significance…

A: The p value lies between 0 & 1. The incorrect options from the available options is, A ,E and F.…

Q: For each scenario listed on the left, determine whether the scenario represents an Independent…

A: Independent samples: When the observations of one sample does not depend, influence or effect the…

Q: The use of cellular phones in automobiles has increased dramatically in the last few years. Of…

A: H0 - No relationship between phone use & accidents, Reject H0 if  chi 2>3.841   The degrees…

Q: The use of cellular phones in automobiles has increased dramatically in the last few years. Of…

A: Hypotheses: H0: There is no relationship between phone use and accidents.H1: There is a relationship…

Q: What advantage does preparing a stem and leaf diagram have over grouping a data set using a grouped…

A: Given : Stem and leaf diagram and Grouped frequency distribution

Q: If the sample size is 30 and the mean score for group one is 5.6, mean score for group two is 7.8,…

A: According to the question,

Q: Determine whether a significant degree of rank correlation exists, using desired significance level.…

A: The hypothesis is, Null hypothesis: H0: There is no significant degrees of rank correlation exists.…

Q: Pick a sample problem where despite correlation, causation cannot be reasonable argument.

A: Let us take an example of sales of umbrella and sales of raincoats. Sale of raincoats Sale of…

Q: Part 2: Assume that there is a nonzero average causal effect of soil fumigants on crop yield. In no…

A: Soil fumigation  It is a method to create a field free from most of the pathogens by using…

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: Illustrate the sample covariance of a sample with itself?

A: Sample Covariance is defined as  Let x and y be two variables. The sample covariance is defined as…

Q: 5% is a very common significance level for significance tests, but it Is arbitrary

A: Level of significance helps researcher to make decision about the null hypothesis.

Q: Is there a linear association between age and days? Explain using the sample illustration below.

A: Scatter plot is a graph that shows the direction as well as linearity of the relationship between…

Q: Measures of central tendency alone are insufficient to completely describe a sample because:

A: Hint: Central value for two samples can be same.

Q: Suppose an instructor would like to know if there is difference in the performance of her two…

A: Let us consider two population with mean and and standard deviation and respectively. If sample…

Q: What does level of significance indicates?

A:

Q: Is there truly a significant difference between the two data sets?

A: Test is that whether there is truly significant difference between the two data sets. The test…

Q: Differentiate the three measures of central tendency: ungrouped data.

A: The three measures of central tendency are : 1) Mean 2) Median 3) Mode MEAN →The arithmetic mean is…

Q: Describe how you will be able to compute for observed significance level or p-value of a given data…

A: Please find the explanation below. Thank you

Q: If the average of the data set given below as a missing ('*') value is 7.5, calculate the Q1 (lower…

A: The mean is calculated as follows: Mean=∑xn    7.5=5+2+11+*+8+9+12+98     60=56+*       *=60-56…

Q: A researcher is looking at the relationship between rates of lung cancer and smoking status. they…

A: There are two variables in the study; *Smoking status of subjects, in terms of yes or no. *Lung…

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.