What is the name of the test used?

Q: The test statistic is enter your response here.

A:

Q: How to Converting to z Scores is done?

A:

Q: Determine the P-value for a one-sided test with z = 1.89

A: here given , hypothesis test is one tail  test statistic  =  1.89  use excel command for p -value

Q: At the 2% level of significance, what is the decision?

A: Given : n1=10 , n2=10 , s1=22.4 , s2=12.0 , α=0.02 Our aim is to find the decision. Here , we use…

Q: What are Z scores?

A:

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 is discriminatory ability or power in statistics and how can you show it on course assessments?

A: Please find the explanation below. Thank you

Q: What type of test would be ap are different from the average

A: From given data we have : sample size = 25 standard deviation = 5

Q: Explain the value of p?

A:

Q: What is a? What is the power of the test?

A: Rejection region is that sum of Xi's less than or equal to 4 when the sample size is 4.

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: What is the test statistic?

A:

Q: please answer a, b, c  B. H0: P OR μ H1: P OR μ  C. T or z statistic

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: What does a standard score measure?

A: Solution A standard score is the score which is standardized with respect to mean and sd.

Q: What type of test would you use to determine if happiness and health are related?

A: Test is that whether happiness and health are related.

Q: Why t Test Not Appropriate?

A: t Test is the statistical parametric test which is used to compare the means of the population. It…

Q: what are the first, second, and third quartiles?

A: 25) Here , we want to find the first , second and third quartile For that we use the R-software or…

Q: What statistic would you use if you wanted to see if there was a difference between three ethnic…

A: What statistic would you use if you wanted to see if there was a difference between three ethnic…

Q: Martha wanted to find out the perceptions of Grade 12 learners in Homeschooling. She randomly…

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

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

A:

Q: . What is the p-value?

A: here given  Sample mean  = 24 mph  Sample standard deviation  =  2.2 mph  Sample size  = 14  here…

Q: Why are t statistics more variable than z -scores?

A: t-statistics uses sample variance instead of population variance.   t statistics has both s and x̅.

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 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: What are the six steps to statistical testing? Explain Each step.

A: The six steps in hypothesis testing.

Q: What does Tukey’s test supplies?

A:

Q: s the significant difference?

A: Hypothesis:  Null Hypothesis: The factor affecting the career choice of the students is their…

Q: How do you know if a histogram is leptokurtic or platykurtic?

A: Platy kurtic:If the histogram is having shorter tails and its central peak is limited and broader…

Q: Describe the circumstances in which post hoc tests are used and explain why these tests are…

A: ANOVA is used to compare the means of three or more population. Null hypothesis: The means of the…

Q: What is the correct decision for a test of the difference in two proportions if the test statistic…

A: It is given that the test statistic is 1.99.

Q: Joe is conducting a survey to determine the blood types of 100 people who gave blood at a donor…

A: Here, A survey is a method of collecting data from the respondents to collect information for the…

Q: The 25th and 75th percentile points

A: Given Data is :

Q: Of the minivans surveyed, Honda had the best MPG. Vhich type of statistics are these? Inferential O…

A: Given Statesmen : The above statement is based on some survey . The survey is used to record the…

Q: What would it be for the histogram box?

A: Graphs are used to represent the data in visual form. Each graph used for different purposes and…

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

A:

Q: What is the outcome and the conclusion of this test?

A: a) Option F t sampling distribution because the population is normal, and standard deviation is…

Q: How to count z-score?

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

Q: Explain the major difference between an experiment and an observation.

A: In an experiment, the researcher manipulates every aspect for deriving a conclusion. In…

Q: What is the composite scores

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

Q: what are some tips to study for the FSA test like the reading and math as well.

A: Solution:

Q: When do you use a one-tailed instead of a two-tailed test?

A: One tailed test: One tailed test is used if you only want to determine if there is a difference…

Q: A researcher wants to know if taking statistics improves critical thinking skills. She randomly…

A: Given that, A researcher wants to know if taking statistics improves critical thinking skills. She…

Q: How many false positives were there? Explain the consequences of a false positive for the person…

A: The table given below    Test positive  Test negative  Total Have HIV 1339370 4030 1343400 Do…

Q: what is the difference between z* and z-score?

A: z* is called the z-critical value. We calculate the z-critical value or z* from the standard normal…

Q: What are the steps for Finding Proportions beyond Two Scores?

A: Z-score: Z-score shows how far a score is away from the mean or it shows how standard deviation away…

Q: Why are post hoc tests performed?

A: Analysis of variance test is used to analyse the significant difference among the group means in the…

Q: Which is the correct output (B or C) for the appropriate test? Explain.

A: A student compared organic food price at Grocery1 and Grocery2 here we use Paired t-test for…

Q: will you assess the validity of the questionnaire?

A: Validity in the questionnaire represents the amount of built in or systematic error present in the…

Statements and Logic

Logic is the analysis of general patterns of thoughts without regard to any specific sense of context.