Use Spearman's r, to measure the agreement between experienced and novice clinicians.

Q: What is the third quartile

A: We are asked to find the third quartile

Q: What type of t-test should you use if you want to compare the inital heights and final heights of…

A: Here, the objective is to compare the initial heights and final heights of plants treated with…

Q: When do you need to calculate and use a Z - Score? What are the assumptions when you use a Z score?

A: We have to find need of calculate and use of z score..

Q: What statistical analysis correctly analyzes the independent measure ( also known as in between…

A: Here we can say that for independent measures we use t-test for one sample and t-test for two…

Q: What is a type 1 and type 2 error? How are they related to each other?

A: First of all, we know that there are two types of arises in the testing of hypothesis because, in…

Q: What is the definition of Type I error? When does it occur? How is it related with level of…

A: Type 1 error means rejection of true null hypothesis

Q: Carry out the statistical test and state your conclusions.

A: 5) The null hypothesis is a simple statement about the value of the population parameter which is…

Q: The p-value for this test is approximately

A: Here Given for two tail test  Sample size=n=144 Sample mean=x¯=60.8 Standard deviation=s=3.6

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: What is the difference in what a small P-value tells us compared to a high P-value?

A: P Value is a method to determine the significance of the result from a data. It basically tells you…

Q: A consumer organization was concerned about the differences between the advertised sizes of…

A: For the given data Perform Anova single factor and select the correct choice

Q: Bonferroni adjustments are necessary when making multiple comparisons because they keep the Type I…

A: Bonferroni adjustment is used to maintain the same alpha level by decreasing the critical value for…

Q: Does training in stress reduction make a difference for student success?  15 students received…

A: Given Information: Sample 1: Sample size n1=15 Sample mean M1=88 Sum of squares SS1=400 Sample 2:…

Q: What is the decision rule for the t-test that the mean child mortality rate for countries in Eastern…

A: It is tested that the mean child mortality rate for countries in Eastern Europe is more than the…

Q: What is the value of the test statistic, F?

A:

Q: What is Standard Error of the Difference between Means?

A:

Q: For the chi-square test of independence, how is the p-value evaluated?

A:

Q: The mean score on stat finals for all Hartnell students is 78/100. Is this a parameter or a…

A: The parameter represent the population .

Q: Distinguish briefly the descriptive and inferential statistics

A: Descriptive statistics: It is a simple way to describe a dataset. It is that part of statistics…

Q: Test the claim that the mean GPA of night students is larger than 2.8 at the 0.05 significance…

A: Claim : The mean GPA of night students is larger than 2.8 Sample size n = 35 Sample mean M = 2.81…

Q: Interpret the test hypothesis either reject or not. And, how about the significant level?

A: Answer: From the given output, Test statistic = 2329.367 P-value = 0.0000 As p-value < 0.05, we…

Q: Explain the meaning of the term hypothesis as used in inferential statistics.

A: Hypothesis testing:         Hypothesis testing was introduced by R.A.Fisher (Ronald Fisher).It is a…

Q: Suppose that you have bivariate data for an entire population. a. How would you decide whether an…

A:

Q: In which class does the quartile 1 located?

A: Solution-: We have given the following table: Class No. Class Intervals Class Boundaries Lower…

Q: Make a conclusion based on the histogram (attached below)

A: We need to make interpretation based on given Histogram

Q: Do you know how to construct quartiles?

A: Quartiles: It is a method of dividing the data into four parts, 0% to 25% of 25% of data is the…

Q: How might measurement and design errors affect respondent errors?

A: Design errors can lead to non response errors as the respondent is not sure how to answer a question…

Q: Identify the type of data that would be used to describe a response. Number of Mt. SAC students…

A: Qualitative variables/Categorical variables:   The variable that describes about the characteristic…

Q: If the test statistic falls within the rejection region, you reject H0 in favour of Ha true false

A: In this case, we need to identify the given statement is true or not.

Q: What are characteristics of a t test?

A: T-test: The t-test is used to check the significant difference between the two groups. By comparing…

Q: Explain the Critical Z score.

A:

Q: (b) 57 houss of A pasticipant, Janceel, had his -Score? Sleep per uweelk . what ū z-Scose? (0)…

A: Given that,  Sample size (n) = 40 At 95% confidence intreval.  Lower limit = 42 Upper limit = 54 Z…

Q: Explain how we use t as an inferential statistic

A: Inferential statistics:The process of making conclusions regarding the population based on the…

Q: What does Cohen’s d measure? What are type I and type II errors and how are they related?

A: The effect size is a quantitative measure which describes the extent of the experiment being…

Q: Compute the interquartile range for the following scores that represent a continuous variable: 1, 2,…

A:

Q: What is the predicted explanatory value? X =

A: The regression equation is y=-3.546x-4.393.

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

A:

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: As part of the National Health Interview Survey, occupational injury data were collected on…

A: Given information: Given data represents the information of occupational injury that was collected…

Q: The p-value for this test is

A: Given : n=26 , s=0.06 , σ2=0.003  Our aim is to find the p-value.

Q: Use a T-test of the data given in the picture, compare it with a P value(one tailed) and do a…

A: The three pairs Male and Female, Male and Male and injected male and male, and objective is to apply…

Q: State the empirical rule as specialized to variables.

A: Empirical rule- It is also called as 3-sigma rule, because in this all the data falls under 3…

Q: What is the relation between the centralizer and normalizer?

A: Centralizer of an element :-…

Q: Based on the above, he est statistic is equal to?

A: It is given that Sample size n = 30 Sample mean = 14 Sample SD = 14 Level of significance = 0.05

Q: A visiting comparative literature student from Cambridge University believes that contemporary…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: What does the P-value describe?

A: P value can be defined as the probability value for a given statistical model that null hypothesis…

Q: How to determine Estimate the P-value.

A: Introduction:P-value: The P-value is the probability of obtaining a test statistic value as extreme…

Q: Using a significance level of α = 0.05, state your conclusion in terms of H0.?

A: According to the provided information, the level of the significance level is 0.05. The level of…

Q: what is the p value? is the p-value low? can we conclude?

A: Answer 1: The intersection P-value is 0.11225061. Thus, the intersection P-value is 0.11225061.…