V.EVALUATION: Given the following scores: 5, 7, 12, 14, 15, 22, 25, 30, 36, 42, 53, 65. Find: 1. Qi 2. Q2 3. Q3 4. Dg 5. Ps0

Q: Identify the median confidence in education for those who identify as white individuals? 2.22 1.78 4…

A: Given data 2.22 , 1.78 , 4 , 2

Q: What is the value of (sx)?+| for SCores 2. 0,2,4 2.

A: The operator ∑is used to denote the sum. For example: If xi be the ith value of variable x with…

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: The table shows the results of a survey about favorite pizza toppings. Out of 280 people, how many…

A: 126

Q: Giving a test to a group of students, the grades and gender are summarized below A C Total Male 2 16…

A: Given,

Q: a) What percent of patients in the treatment group were pain free 24 hours after receiving…

A: Given Data:   Pain Free: Yes Pain Free: No Total Treatment 10 33 43 Control 2 44 46 Total…

Q: What type of association would you expect in each of the cases below (positive, negative, or none)?…

A: To determine relationship in the given statements.

Q: C. According to the relative values of column entries, how should the participants be ranked? D. In…

A:

Q: partner with blue eyes? (d) Does it appear that the eye colors of male respondents and their…

A: d) To check the independence of the eye colors of the male respondents and their partners. To check…

Q: 4b) For the following scores, find the median 43, 32, .64, 21, 29, 51, .89, .64

A:

Q: Giving a test to a group of students, the grades and gender are summarized below C. Total Male 20 12…

A:

Q: First Convert the following values into Z-scores. Then identify the proportion and probability in…

A: a) Given data

Q: Find the values of Qj, Q3, Dz and P4, from the following data: Marks No. of Students more than 70 7…

A: Given that  We have to find the first quartile Q1, third Quartile Q3, third decile D3, 40th…

Q: Given: 4 = 43,0 3. What is the raw score when:

A: Let X be the raw score from normal distribution with mean (μ) = 45 and standard deviation      (σ) =…

Q: Which of the subtraction model describes the following question? Maria needs 15 balloons for a…

A: Maria has 12 balloons and she needs 15 balloons for a balloon bouquet.

Q: Illustrate the Test R2 for significance?

A: Coefficient of determination: The coefficient of determination (r2) is the percentage of total…

Q: The chart below shows the scores in a spelling test for a group of 6th-grade students. What…

A:

Q: Determine which of the four levels of measurement is most appropriate. The level of satisfaction…

A: Levels of measurement: Nominal: When the possible observations are tags or categories or names,…

Q: Determine the P-value for a test of significance with t= 1.990, n = 95 and Haμ 100. ‡ Type your…

A:

Q: Four out of five students got As in math. What percent of students got As in math?

A: From the Percentages

Q: Monica took a survey of her classmates' hair and eye color. The results are in the table below. Hair…

A:

Q: e value for Q3 based on the box plot above ?

A: A box and whisker plot—also called a box plot—displays the five-number summary of a set of data. The…

Q: find the test statistic and p value.

A: Given, The data on the number of games played in a yearly best of seven baseball championship series…

Q: b. What is the​ p-value?

A: From the obtained results, the test statistic value is -2.00 and the test is two-tailed.

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: 39. What is the value of (EX)² for the scores: -1, 0, 3, 5?

A: Given that  The data are -1,0,3,5 Find the value (∑X)2

Q: Giving a test to a group of students, the grades and gender are summarized below A В C Total Male 17…

A:

Q: Giving à test to a group of students, the grades and gender are summarized below B. C Total Male 10…

A: Given data: The grades and gender of a group of students is given in the provided contingency table.…

Q: 41. What is the value of EX + 1 for the scores: -1, 0, 2, 3?

A: Given data is -1,0,2,3

Q: A survey asked office workers what they like t- do when taking a break from work. Preferred break…

A:

Q: For a month, Mrs. McCoy's science class recorded the low temperature for each day. Daily low…

A: From the given box plot we find the third quartile.

Q: What is P(A and Y) ?

A: here use basic probability  Probability  = =no of favorable outcomes total outcomes

Q: product." What percentage of the respondents who disagree are in the 35-54 age group?

A: Here Given  Total number of Respondent=141=N Number of Respondent DIsagree=31=N(D) Number of…

Q: What is the value of ΣX2 for the scores 2, 4, and 5?

A: The scores are given as 2, 4, and 5.

Q: Scott surveyed 40 friends on Facebook and asked them where they were born and where they went to…

A:

Q: In rating the service provided by a restaurant server, the following responses are possible:…

A: We need to use the concept of scales of measurement to solve this question

Q: Calculate the test statistics for the following scenario: 中 A local pizza shop thinks 80% of their…

A: Given : Proportion of customers who prefer Pepperoni pizza (p) = 0.80 Sample size of customers (n) =…

Q: The table shows the English test scores for 6 students. English Test Grades Student 1. Grade 78 92 3…

A: Student Grad 1 78 2 92 3 80 4 95 5 85 6 70

Q: What is the value of the test statistic? A) 1.85 B) 3.704 C) 2.39 D) 4.100 E) 2.556

A: Given: While in college student can complete for four seasons in each sport. Due to the maturing of…

Q: Raymond wants to estimate the percentage of parents that use cloth diapers. He asks a randomly…

A: According to the provided information, Raymond wants to estimate the percentage of parents that use…

Q: Giving a test to a group of students, the grades and gender are summarized below A Total Male 16 3 2…

A: Student was not a male that got a 'A' means if the student got 'A' then we have to find the…

Q: Mean b. Median c. Mode

A:

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: Given the data below; 320,332,339,343,345,348,351,352,364,376. a) find the mode.

A: We have to find mode of data.

Q: Using either Table G or Calculator, find the P-value for each χ2 test value.    (a) χ2 = 39.214, n…

A: Using either Table G or Calculator, find the P-value for each χ2 test value.    (a) χ2 = 39.214, n =…

Q: Which distribution of ACT scores has the highest percentage of students scoring above 21.4? English…

A:

Q: The data represents the number of points received in a quiz.  9, 9, 10, 10, 10, 1 Mean- 8.166...…

A: Given: mean = 8.166 media = 9.5 What is a better measure of center? The mean or median and why?

Q: You're going to the store to buy a smartphone. You choose among the available smartphones using the…

A: This is a problem related to calculation of the ranking. Based on the given scenario we will…

Q: C. According to the relative values of column entries, how should the participants be ranked?

A: Given According to the relative values of column entries to find how should the participants ranked.…

Q: What is the value of ΣX for the scores 2, 5, 3?

A: Given data2,5, 3ΣX = 2+5+3 = 10

Correlation

Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.

Linear Correlation

A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related. 

Regression Analysis

Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.