I dont understand how to find a z score in statistics in psychology

Q: You are considered to have an intellectual disability (ID) if you score in the lowest 2.5% of the…

A: Given data, μ=100 σ=15 P(X<x)=2.5%=0.025

Q: Suppose that the mean score of a class of 32 students was 78. The 16 male students in the class had…

A: From the provided information, The mean score of a class of 32 students was 78. The sum of total…

Q: Can you give the statistical table you have used to get the 1.96? Thank you.

A: Given that, The confidence level is, 0.95 The level  of significance is,

Q: What is formula for z score?

A: A z-score is a score which is computed to find out the number of standard deviations a value is away…

Q: What is the percentage of scores that lie between a z score of -2 and a z score of 1?

A:

Q: Extreme/usual scores that can impact results are called:

A: Solution: Outliers: Outliers can be defined as outliers are the extreme observation that are…

Q: what is an average

A: You want a meaning of average.You know average is also called as mean which is one of the Measures…

Q: What information is provided by the sign (+/–) of a z-score? What information is provided by the…

A: Let, the dataset scores have a mean µ and standard deviation σ. Then the z score of a given score ,…

Q: What is the z score for test scores of 70 and 90?  TEST SCORES: 50,60,61,63,66,67,73,82,89,92

A: From the provided information, The test scores are 50, 60, 61, 63, 66, 67, 73, 82, 89, 92

Q: what is the z score that corresponds to P18

A: The standard normal variable Z follows normal distribution with mean 0 and standard deviation 1.

Q: What is the Mean difference (d) and the SD of Difference?

A: Enter the values of Millennials and Zoomers in columns A and B of excel.   The sample mean for the…

Q: 3. It reveals the raw score is below the mean average.

A: Given problem Given that   3. It reveals the raw score is below the mean average.

Q: Explain about why z Test Is Appropriate.

A: The z test is basically a statistical test for testing whether is there any difference between…

Q: A negative z score indicates that an individual's raw score:

A: Introduction: Consider X as a normally distributed random variable, with mean μ and standard…

Q: What is the value of z score ? Mean  =142 Standard devaition=2 X =140

A:

Q: how do you find z score from a P value in statistics?

A: We habe to find z score from p value.

Q: What are the limitations of the mean

A: A.M is a ratio of sum of observations to the number of observations.

Q: Explain the reasons why we might have positive, negative z_scores? When is the z_ score equal 0

A:

Q: What is the area of proportion below a z-score of -.91? What is the area of proportion between the…

A: Z scores are given.

Q: what range of raw scores makes up the middle 40%

A: The middle 40% means, the scores lie between 30th and 70th percentile. From stand normal, z-score…

Q: What is the area of proportion between the mean and a z-score of -2.88? What is the area of…

A: The area of proportion between the mean and a z-score of –2.88 = P(–2.88 < Z <0) = P(Z<0) –…

Q: A) mean , b median c) mode  do these three and

A: Given data,…

Q: Hello! I need help with this particular question on my study guide. There is an attachment below.…

A: I am drawing distribution to show Skewness.

Q: Describe about the z TEST FOR A POPULATION MEAN.

A: Z-test for significance of a single mean: The z-test is appropriate when population standard…

Q: How to determine to cut ap value in statistics?

A: P-value: The p-value is a measure of degree of the evidence against the null hypothesis. The…

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: The mean score on this test is: The midrange of scores on this test is:

A:

Q: What is the value of z score ? Mean  =142 Standard devaition=2 X =146

A:

Q: What is the formula for converting z score to original score?

A: Solution: Let X be the random variable. Suppose X has a mean µ and standard deviation σ. Then, the z…

Q: A university administrator obtains a sample of the academic records of past and present students at…

A: Hypothesis testing is an act in statistics whereby an analyst tests an assumption regarding…

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: How do calculate a z-score

A: In general z-score is the standard normal score.

Q: In a city with three high schools, all the ninth graders took a Standardized Test, with these…

A: Given: X¯1=77n1=259X¯2=90n2=344X¯3=66n3=171

Q: The mean age for licensed physicians in the United States is 51.5 years. A government official…

A:

Q: How to find the z score in statistics

A: Given, How to find the z score in statistics.

Q: How do you calculate z-score?

A: Formula to calculate z - score  z = x - μσ

Q: Determine the test score of John in Statistics if he has a z-score of 1.89. (SD = 4, mean = 82)

A:

Q: how to get percentage scores between the mean and the z score

A: I am taking an example to explain this Suppose mean weight of students is 100 kg and Standard…

Q: What is the standard error of the mean?

A: Standard error: Standard error is a measure which explains how accurate are the sample means to…

Q: How to count z-score?

A: Let X follows the normal distribution with mean µ and standard deviation σ.

Q: Is the number of runs scored by a baseball team during a season quantitative and discrete?

A: Discrete random variable: A discrete random variable takes the countable number of real values. This…

Q: What is the composite scores

A: Composite score is the average score. For the three students composite score=total score or raw…

Q: Mean Score for Female Students =

A:

Q: Suppose that the mean score of a class of 28 students was 77. The 16 male students in the class had…

A: The mean score of the 28 students was 77. This means that on an average each student scored a total…

Q: State whether the z-score locates the raw score x within a sample or within a population…

A: Solution: Given data ×=50,        s=5, x̄ =40  To find: Whether the z-score locates the raw score x…

Q: what information is provided by the (+/-) of a z-score?

A: The z score tells us that the how far the mean is from the data point. The formula for z score is,…

Q: What is the difference between t-statistic and z-score

A:

Q: How do I calculate z score?

A: The z-score describes the position of a raw score in terms of its distance from the mean, when…

Q: Suppose we changed the definition to the average number of dots after forty rolls. Would this…

A: