Q: How to Converting to z Scores is done?
A:
Q: what statistic should be used? What is the value of that calculated statistic? Please explain!
A: The variable should be measured is increase in knowledge after the students participated in an…
Q: What is the advantage of a z score compared to a raw score?please detail
A: Since a Z-score is a standardized way to measure a score in relation to the population, a z-score…
Q: What is an “average” z-score? Explain your answer?
A: A Z-score is a numerical measurement that describes a value's relationship to the mean of a group of…
Q: What should I learn statistics?
A: Given problem Given that What should I learn statistics?
Q: A software company is interested in improving customer satisfaction rate from the 65% currently…
A: Given,population proportion(P)=0.65sample size(n)=207no.of customers who were satisfied(x)=145
Q: Help with F- Statistic and P-Value please!
A: The mean for sample means is, The sum of square for treatments is, The sum of square for error is,…
Q: Which variable is the explanatory variable and which variable is the response variable? ? Explain…
A: Let X be the teen birth rate and Y be the people living in poverty.
Q: What is statistics, how do you think statistics can be helpful in ours lives. Think of an area of…
A: Statistics is a science which deals with the collection, classification, presentation, comparison…
Q: The statistics below provide a summary of the distribution of heights, in inches, for a simpl random…
A: Firsti quartile (Q1) value interprets that, 25% of the data lie below Q1 value and 75% of the data…
Q: A physics instructor wants to determine how much test scores would increase if she assigned online…
A: Solution: Given information: n= 100 Sample size μ=79 Population mean M= 82 Sample mean s=15 Sample…
Q: What is statistics and why do you need to use statistics in your research? How important are they?
A: Statistics: Statistics is the branch of mathematics that deals with the collection of data,…
Q: On his 5 tests, Ahmad earned a total of 450 points. What was his mean number of points earned per…
A: The objective of this question is to find the mean number of points Ahmad earned per test. The mean…
Q: South Salinas Price Sq Feet Beds 3 2 549 415 565 1175 600 506 489 590 419 500 969 750 399 650 439…
A: Given: n1 = 25 n2 = 25 Formula Used: Test-statistic t = X1-X2sp1n1+1n2 sp =…
Q: Researchers conducted a study to understand the effect of gender on statistics anxiety. They believe…
A: Given, we have two samples males and females.
Q: How do i find the test statistic and the p-value?
A: The sample sizes are 22 and 22.
Q: Why inferential statistic is important for physical activity educators ? Please provide two examples…
A: 1] Inferential statistics is used to make the generalization about the population based on the…
Q: step 4 can you calculate the p value without using excel? need to be able to do on a test without…
A: From given data n=19 so, degree of freedom is df=n-1=19-1=18
Q: What is p value ?
A: The P-value is the probability of observing difference in the sample statistic this high or higher…
Q: A major company would like to assess the relationship between self confidence and sales levels in…
A: In this case, we will use correlation coefficient.
Q: explain the differences of parameter and a statistic
A: It is needed to state the difference of parameter and statistic.
Q: How will you calculate median in case of ungrouped data?
A: Median: Median is a very popular measure of central tendency that determines the middle most value…
Q: Which multiple comparison test provide better protection against misses or type II errors? Describe…
A: Here's the explanation is as follows; The multiple comparisons, occurs when one considers a set of…
Q: The varaibility of a statistic is described by
A: The variability means the spread ness of the data set. The best measure of spread ness is standard…
Q: Grade 6 and Grade 8 students were asked how long it takes them to get to school in the morning. The…
A: The measure of the centre is calculated using the observations such as mean, median and mode. The…
Q: hat is a percentile and how do we plot them on box and whisker plots?
A: Percentile is the value in statistics which divides the population in two groups. The certain…
Q: Describe of two examples of data sets for each of the four levels of measurement. Justify your…
Q: Is theory essential to the research process and statistics? Please Explain.
A: Introduction about Theory: Theory can be defined as the idea or concept that has no proof. It could…
Q: explain what is measured by the sign of a z -score and what is measured by its numerical
A: here use basic of standard normal random variable z -score
Q: What is the discrimination coefficient?
A: Discrimination coefficient
Q: What is the significance of a z-score?
A: The value of z score tells that how many standard deviations the data is spread away from mean. The…
Q: In spss, what test can you do to compare the score of variables?
A: As per the question we have to compare the score of variables if we have 2 independent samples, we…
Q: How do I find P-value using z score?
A: P-value from Z-score
Q: P-value using z score?
A: here , for p value calculated based on type of test (left , right or two tail test ) and test…
Q: What are the Four Steps to use when working with the t-test ?
A: The Four Steps to use when working with the t-test with p-value approach is given below: Step 1:…
Q: How to count z-score?
A: Let X follows the normal distribution with mean µ and standard deviation σ.
Q: A sample of psychology students in MSU-IIT was part of a study that examined their happiness level…
A: From the given information, Sample size n =56 Using Excel function, “=AVERAGE(A1:A7)” the Sample…
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