Skip to main content
Question
100%

What effect does standardizing into z-scores have on the center (mean) of a variable?

Expert Solution

Want to see the full answer?

Check out a sample Q&A here
Blurred answer
Students who’ve seen this question also like:
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN: 9780079039897
Author: Carter
Publisher: McGraw Hill
Not helpful? See similar books
Learn more about
Z-Scores
marketing sidebar icon
Want to see this answer and more?
Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*
*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.

Related Statistics Q&A

Find answers to questions asked by students like you.

Q: What effect does standardizing into z-scores have on the shape of the distribution of a variable?

A: Z scores implies that how far is your data value in terms of no. of standard deviation. In simple…

Q: what effect does standardizing into z-score have on the shape of the distribution of a variable?

A: standardizing into z score changes the center by making the mean 0 .standardizing into z score…

Q: What does a negative z score mean?

A: In this question we have to tell what does the negative Z score implies. A Z Score means that how…

Q: What is the drawback of summarizing the data using the median

A: Median: Median is the middle value of the set of numbers. The set of numbers should be arranged in…

Q: Could you please help me understand the difference between a z-test and a t-test for in statistics?

A: Both the tests are useful to test the significance of means.Both the tests are assume a normal…

Q: Explain how the F-test statistics is calculated and what it tells us about the variance between and…

A: In ANOVA, “SS” stands for “sum of squares”, “df” stands for degrees of freedom, F is for the test…

Q: When looking to understand the Z score what does it actually mean in simple terms in comparison to…

A: The value of the z-score tells you how many standard deviations you are away from the mean. If a…

Q: .What does a z- score of 3 for a data value x represen

A: The normal distribution  in the center are generally denser and basically less denser at tails.…

Q: What are Z scores?

A: Click to see the answer

Q: What is the explanation for the normality test?

A: Here we explain normality test.

Q: What does it mean that the variance (computed by dividing by N) is a biased statistic?

A: Click to see the answer

Q: How is the analysis of variance (ANOVA) specifically the F-Test, a signal to noise ratio?

A: ANOVA is a study which is non parametric. ANOVA stands for "Variance Analysis" and is used to…

Q: What does a z-score of 3 for a data value x represent?

A: Note- As per our policy we can answer only 1st question. If you want solutions for other, then you…

Q: What are the percentages of scores that fall between in the tails of a normal distributio

A: Given, Empirical rule: For a normal distribution, 68% of values fall within 1 standard deviation of…

Q: What is the effect of an increase in variance of the different scores in repeated measure design

A: Given information: It is given that the variance of the different scores is increased in repeated…

Q: a. What is the 25th percentile of HDL in patients recelving the placebo? b What is median HDL. in…

A: a. First quartile: First quartile is the median of all the observations that are left to the…

Q: What does less replicates mean in the context of understanding variance of data?

A: When the distribution has less variability then the data is more consistent.

Q: what happens to the F-statistic if two variances are different?

A: The two variances are different hence the F-statistic are as follows,

Q: Explain how the variance in the numerator and denominator of each F-ratio of a 2-way ANOVA is…

A: Variance in the Numerator and Denominator for 2-Way ANOVA

Q: What is an everyday example of variance within samples?

A: If we need to know the variance within samples, we need to use ANOVA Test.

Q: What is the corresponding​ z-score?

A: To find z-score corresponding to mean , standard deviation , raw score and normal distribution .…

Q: What are the assumptions when you use a Z score?

A: Click to see the answer

Q: What is the correlation between z score and observed data

A: Solution: It seems that your question asks you to use a normal probability plot to determine whether…

Q: What is the z-score for Pepper?

A: Here given, German Shepherds have a mean weight of 78 pounds, with a standard deviation of 15…

Q: What correctly represents the coefficient of determination in terms of the variance that is an…

A: Coefficient of determination depicts the variation in the dependent variable which is explained by…

Q: The F-statistic is a ratio score resulting in a measure of the estimated proportion of variance due…

A: The F-statistic is a ratio score resulting in a measure of the estimated proportion of variance due…

Q: Can you think of any flaws in the One-Sample Z-Test for Mean?

A: Introduction: Suppose the true, unknown mean of a population of interest is μ.

Q: Describe when you would use an analysis of variance versus an independent samples t-test.

A: Analysis of variance (ANOVA) is used when we have more than two independent samples whereas…

Q: Explain Single Observation Summary of Z-test Summary?

A: Z-test: Z-test is a statistical test used to determine whether two population means are different…

Q: Explain the effect of heterogeneity of variance on the Type I error rate?

A: Type I error: The type I error occurs when rejecting the null hypothesis if it is true. It is called…

Q: How would you explain the analysis of variance, assuming that your audience has not had a statistics…

A: Click to see the answer

Q: Explain whether homogeneity of variance is satisfied for this analysis, and be clear on how you…

A: Homogeneity of Variance: Homogeneity of variance (homoscedasticity) is a crucial assumption shared…

Q: What statistical calculation, which results in the same units as the measured data, represents the…

A: Introduction: For a random variable X taking n sample values, the sample variance is given by the…

Q: Why is the unbiased estimator of variance used?

A: the unbiased estimator of the population variance, corrects the tendency of the sample variance to…

Q: An office manager claims that the mean time required to handle a customer complaint is less than 30…

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

Q: What does sample variance measures in F test?

A: F-test is used to test whether the observations in two groups have same variability. Let X1, X2, …,…

Q: Explain the assumption of homogeneity of variance?

A: Independent Two Samples t-test: Suppose there are two populations independent of one another. A…

Q: Why Squared Correlation Coefficient Does Not Apply to Individual Scores?

A: Squared Correlation coefficient: Squared correlation coefficient is also known as coefficient of…

Q: In the context of regression analysis, what is an a. outlier? b. influential observation?

A: Click to see the answer

Q: A histogram of a set of data indicates that the distribution of the data is skewed right. Which…

A: Correct Option: C

Q: Explain what the purpose of an Analysis of Variance is.

A: A ANOVA is a statistical method for making simultaneous comparisons between two or more group means.…

Q: Explain what the purpose of an Analysis of Variance is.

A: Analysis of Variance: ANOVA is abbreviation of analysis of variance, that distinct variance into…

Q: What kind of statistical test should be used to test the consumer group's research goal, assuming…

A: We have used the excel data analysis to run the ANOVA analysis.

Q: Explain the Sources of variability and F ratios in one- and two-factor ANOVAs.

A: Click to see the answer

Q: Why is it impossible to calculate a negative F value when using an Analysis of Variance to test a…

A: According to the F statistic for ANOVA,  MST =Mean square of treatment MSE = Mean square error In…

Q: What is Percentile Rank of an Observation?

A: Percentiles: If the elements in the data set are arranged in ascending order of magnitude, then the…

Q: How does the F-statistic change if one sample is very different from the others?

A: The formula for F-statistic is, F=Variation between samplesVariation within samples If the variation…

Q: Suppose you would like to determine if the mean score for the first round of a golf tournament event…

A: Here we have paired data so paired t test will be used.

Q: A correlation of +.20 means that [blank] of the variance in the outcome variable is accounted for by…

A: Solution: From the given information, r=0.20.

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…