How to Converting to z Scores is done?

Q: How do I calculate to get this std dev answer?

A: Given Information: Proportion p=0.40 Sample size n=50 Based on the concept of Central limit theorem,…

Q: The average percentage of correct responses on last semester's Midterm was 78%.  What can be said…

A: The standard normal distribution: A continuous random variable Z is said to follow standard normal…

Q: →>> What's a standard score?

A: Introduction  from the above question we have to explain what is a standard score

Q: How would you report those results in APA style?

A: The question is about to compare the difference between number of anagrams solvable and number of…

Q: A cable is made up of several parallel strands of wire. The strength of the cable can be estimated…

A: a) The strength of the cable using ductile method is, Thus, the strength of the cable using ductile…

Q: Suppose that X and Y have a joint probability density function given by ce-3z-5y fxy(x, y) = if x, y…

A:

Q: how do you calculate the P-value without excel

A: From the given solution, we get z = -0.957    = -0.96       ( round upto 2 decimal places )…

Q: Why should I learn statistics?

A: Statistics helps us to describe and organize data. It also helps us to make inferences from data.

Q: Define the test variable?

A: Introduction A variable is a characteristic that is being tested.

Q: SAT Math Suppose that scores on the SAT Math test are approximately normal with a mean of 500 and a…

A:

Q: Explain about Scheffe’s test.

A:

Q: It is a R question. Using your personal random sample of 1,000 observations, find: the average age…

A: #Generating 1000 random sample(considered as age)random<- sample(1:100, 1000, replace =…

Q: What is the p-value only?

A: It is given that  In the original solution  The value of the test statistic is z = 3.92. The given…

Q: What is the value of SX + 1 for the scores 1, 6, 3?

A: The sum of scores is 1+6+3 = 10. That is, SX = 10

Q: What should I learn statistics?

A: Given problem Given that   What should I learn statistics?

Q: What is Multiple Comparisons?

A: In statistics and probability theory, Multiple Comparisons (also known as multiplicity or multiple…

Q: What is the main difference between z score and T score?

A: Z Score and T scores are both used in Hypothesis testing.  Z score is used while using z test and T…

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: How do you determine which exam score is higher relative to others

A: The normal distribution is a continuous distribution.

Q: find the value between z score -2.9 and 1.5287

A: To find: Find the value between z score -2.9 and 1.5287

Q: How did you get the p-value?

A:

Q: Describe the four cases of the Leading Coefficient Test.

A: Let given polynomial function is fx=anxn+an-1xn-1+an-2xn-2+......+a2x+a1x+a0 The graph of given…

Q: What is p value ?

A: The​ P-value is the probability of observing difference in the sample statistic this high or higher…

Q: What are application of statistics and math?

A: Statistics help in providing data as well as tools to analyze the data. Some powerful techniques are…

Q: What is the power of a test?

A: Power of test is the probability of rejecting the null hypothesis when it is false. Therefore, the…

Q: How do i calculate finding the percentage between two z scores?

A: To find the probability between two z-scores: z-score represents the number of standard deviations…

Q: I want to run an additional post hoc test to compare the stats knowledge of first year psychology…

A: Given that to compare the stats knowledge of first year psychology majors before taking the course,…

Q: How does a histogram work? How do I make one?

A: A histogram is a graphical representation of continuous numerical data using rectangular bars. It…

Q: 2. Explain the steps of finding the IQR.

A: 2) The steps to finding the value of IQR is, Step 1: First arrange the data in ascending order Step…

Q: one percent of grades are greater than what z-score?

A:

Q: What is the percentile rank x=15 and what is the score for 75th percentile?

A: If the we have no of scores is 15 then we have formula for percentile rank as:…

Q: What’s the formula to turn a Z score to a T score?

A: The  score is the standardized score obtained by using population data or large samples .The  score…

Q: What's the Z score and how is it calculated?

A: We know z-score is used in many fields. But we should know what is the meaning of z-score and how to…

Q: What is the average? 3 4 5 8   2   4   5   10

A:

Q: Can you break down how to obtain the SS1 and SS2 scores

A: In given solution and formula for computing SS1 and SS2 is correct but x1 and x2  taken wrong. for…

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

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.