THE FF. WERE THE RESULTS OF THE EXAMINATION CONDUCTED FOR GRADUATING STUDENTS. FIND THE 1ST DECILE (USE 4 DECIMAL PLACES) SCORE INTERVAL 91 - 100 81 - 90 71 - 80 61-70 51 - 60 41-50 31-40 21 - 30 11-20 f Xx

Q: Suppose the degree of student in exams was (70,57,60,75,80,58,90), calculated mean for grouped data…

A: See the attachment

Q: THE FF. WERE THE RESULTS OF THE EXAMINATION CONDUCTED FOR GRADUATING STUDENTS. FIND THE MEAN (USE 4…

A: The objective is to compute the mean for the given data.

Q: percentile of the value 44. (Note: Percenti always rounded to the nearest whole num 47 35 30 44

A: The percentile for a given value is obtained by the following formula:Percentile for a value=Number…

Q: (a) Approximately what percent of the song lengths will last more than 7 minutes? (b) State the…

A: Here given ,  Cumulative relative frequency graph for length of song in minutes.

Q: f. What percent of patients have more than 80 distressing/scary thoughts a day? g. Are these data…

A: The data of 20 patients is given from which it is asked to compute the percentage of patients who…

Q: This exercise provides information about data in a survey of students. Of the students who…

A: given data  105 first year student 185 sophomores 29 juniors 28 seniors ____________ 347 total…

Q: The following data represent the grades of 50 students in the Statistics course, place these data in…

A: To Calculate such parameters we can use Excel. It is the easiest way to find these Statistics…

Q: The average American gets a haircut every 39 days. Do college students get their hair cut less…

A: A hypothesis test is a statistical  method that uses sample data to evaluate a hypothesis  about a…

Q: Where do p-values concentrate?

A: Under the null hypothesis H0 about the unknown distribution of the test statistic, the p value is…

Q: THE FF. WERE THE RESULTS OF THE EXAMINATION CONDUCTED FOR GRADUATING STUDENTS. FIND THE MEDIAN (USE…

A: Class Frequency 11 - 20 2 21 - 30 7 31 - 40 3 41 - 50 8 51 - 60 10 61 - 70 12 71 - 80…

Q: Researchers want to know which food chain makes people the happiest. Researchers randomly assign…

A: For the given data, we need to compute the F-statistic.

Q: The following frequency histogram represents the IQ scores of random sample of eighth-grade…

A: Given that : Here the histogram is given with the help of this graph we solve the problem.  First…

Q: The heights of women aged 20 to 29 follow approximately the (64, 2.7) distribution. Men of the same…

A:

Q: The ETS Verbal Aptitude Test is designed so that the scores of high school seniors taking the test…

A: It is given that mean is 500 and standard deviation is 87.

Q: The following represents 30 test scores on an exam.   49.5, 48, 51, 50, 53.2, 52, 55, 54, 57, 56,…

A: Sort given values in ascending order  48, 49.5, 50, 51, 52, 53.2, 54, 55, 56, 57, 58, 59, 60, 61,…

Q: Earlier in this chapter (p. 67), we mentioned a researd study demonstrating that alcohol consumption…

A:

Q: General Social Survey (GSS) 2006 collected the data of the number of people in each household in the…

A: The data on the number of people in every household is given.In this case, the variable is…

Q: The chart below represents the highest grossing weekend box office between August 7th to October…

A: From the given information, Weekend Gross 8.2 8.6 10.9 12.5 28.3 12.6 6.4 2 1.2…

Q: The grades for 20 students on the most recent exam are given in the data table below. Round your…

A: Given that;  total number of students is                 n= 20. Formula used;  Mean = sum of total…

Q: Every year students are given a musical aptitude test that rates them from 0 (no musical aptitude)…

A:

Q: The lives (in hours of continuous use) of 100 randomly selected flashlight batteries are: Interval…

A: According to the given data, first form the following table:IntervalFrequency(fi)Midpoint(xi…

Q: The table below shows the mean price (£) and the amount of vehicles sold in January 2020 for…

A: the correct overall mean price for the cars sold in 2020 is  £40,510.22Explanation:Step 1:To compute…

Q: ) 5.2°F per month

A:

Q: How likely it is that a mean from a particular sample is representative of the population is defined…

A: Given Options: t-score F-statistic z-score p-value A p-value is a statistic that is used to test a…

Q: Among freshmen at a certain university, scores on the Math SAT followed the normal curve, with an…

A: We have given that, Population mean (μ) = 550 and  standard deviation (σ) = 100 Then,  We will find…

Q: Kindly interpret the data on the table and focus on the mean

A: The test is a paired sample t-test. The pair is PRETEST, POSTTEST. The mean is -1.53571. The…

Q: Calculate the 75th percentile of the data shown x 2.9 3.5 10.7 26.7 27.7 36.5 46.7 48.3 49.2 54.4

A: Given: The data values are 2.9, 3.5, 10.7, 26.7, 27.7, 36.5, 46.7, 48.3, 49.2, 54.4

Q: try in the 20-29 age group. What nts the 70th percentile? How erpret this? entile represents about…

A:

Q: The PRC wants to assess the difference in ratings of five different engineering board examinations.…

A: Given Data :   AE CE ECE EE ME   93 95 90 91 94   90 92 86 91 91   90 90 84 90 88   88 89…

Q: Referring to the table below, what is the frequency of the second class interval ?

A: The question is about frequency distribution Given :   To find : Frequency of second class interval

Q: Last weekend, police ticketed 16 motorists from Edmonton whose mean speed was 116 kilometres per…

A: Determine the given variables n1​=16,x1​ˉ​=116,n2​=34,x2​ˉ​=120Calculation…

Q: The data of the number of ‘centuries’ i.e. a scores of 100 runs or more, scored by players at a…

A: The mean value can be calculated using the formula: Here, xi is the value of the variable 'number…

Q: please find the test statistic find the p-value for the found test statistic

A: Given :    Sample size = 1051 Level of significance = 0.05  X = number of students who use illegal…