In a study with lower quartile 100, upper quartile 140 and median as 130 How many people can have values ​​above 140? (B) How much of the population has values ​​above 100? (C) How much of the population has values ​​between 130 and 140?

Q: The town of Butler, Nebraska, decided to give a teacher-competency exam and defined the passing…

A: Here we have to explain the given statement

Q: A consumer product magazine recently ran a story concerning the increasing prices of digital…

A: From the provided information, The average price of all digital cameras a couple of years ago was…

Q: what statistical test would you use to answer:

A: We need to determine suitable statistical test.

Q: Which number best approximates risk associated with tea drinking in men?

A: Tea drinking cancer patients in men = 140Total cancer patients in male = 200Tea drinking other…

Q: much does the mean score tell you about the performance of the whole class?

A: Averages are tools of summarizing data, it facilitates the comparison. Different averages are…

Q: 2ndP1] INSTRUCTION: Solve for the following. Show your complete solution and emphasize your final…

A:

Q: When a data set has one or two values that are much higher than all of the others which of our 3…

A: As Mean is found by adding all the values and dividing by the number of values So if one or two…

Q: The median number of part-time employees at fast-food restaurants in a particular city was known to…

A: The median number of part-time employees at fast- food restaurant is 18. There are 7 fast-food…

Q: If the value of the mean Y is 10, what is the value of the mean of Y predicted? A. The same B. The…

A:

Q: Between the mean and median, determine which would be a better estimator given that a sample…

A: The sample mean is, x¯=∑xn=3+8+26+14+125=635=12.6 The data in the ascending order is 3, 8, 12, 14,…

Q: Anna is 3 years old and in the 42nd percentile for height in her age group. What does this mean?…

A: Given: 1)Anna is 3 years old and, 2) In the 42nd percentile for height in her age group. In the…

Q: The mode score on a statistics exam was 83. Which of these interpretations is correct? A.More…

A: Given information Mode score on a statistics exam = 83 Mode = The number having highest frequency is…

Q: You are told that your IQ scores falls at the 79th percentile.  What conclusion could you make about…

A: Percentiles: If the elements in the data set are arranged in ascending order of magnitude, then the…

Q: Will you provide an example of Standard Deviation math problem and solution?

A: Standard deviation:The standard deviation indicates by how much each observation differs from a…

Q: It is a R question. Using your personal random sample of 1,000 observations, find: the average age…

A: #Generating 1000 random sample(considered as age)random<- sample(1:100, 1000, replace =…

Q: The average (mean) score on an exam was 76.375 in a class consisting of 21 Administration students…

A: From the provided information, The average score on an exam was 76.375 consisting 21 Administration…

Q: What length of nails is considered to be at the 58th percentile of all nails?

A:

Q: Please help me with this. The question is what is the difference between a population, a census, and…

A: Population Census Sample The population is measurable quality  is called as parameter. A…

Q: With a percentile of 68 on a test of ambience given to mindanao resorts, bung gumni resorts score of…

A: Given, With a percentile of 68 on a test of ambience given to Mindanao resorts, bung gummi resorts…

Q: Did Clayton State St quarantine? You wonder if the shelter-in-place orders in the Spring of 2020 led…

A: According to the given information in this question We need to write conclusion at 5% significance…

Q: How statistical tests are used?

A:

Q: 4x+5 [x]h I+[x]h 7+[x]h E+[x]h .00104 .00130 .00162 .00200 .00244 .00295 .00113 .00144 .00180.00222…

A: *Answer:

Q: 84 Students Who Took The Achievement Test Last Oct. 2020 If the mean is 88, S = 2.50 How Many…

A: Answer - Given, Sample size n = 84 and the mean is μ = 88, S = 2.50                 How Many…

Q: The mean score on a set of 23 tests is 76. Suppose two more students take the test and score 70 and…

A: given data n = 23 had mean of 76 . two more students take test and score 70 and 65. new mean  = ?

Q: If we add a constant (for example, d) to all data values, how will this affect the geometric mean?…

A: Consider that x1, x2, x3, x4, x5, …. xn, are the data values. Thus, the GM (geometric men) can be…

Q: The U.S. Census Bureau reported in that, people annual income for people who never married was…

A: Given that  Sample size n =100 , for each group.

Q: What is the difference between the average resistance to happiness at age 20 and at age 70?

A: Given :-  R = 4.6 - 0.02x put x = 20. ⇒R=4.6 - 0.02 × 20⇒R=4.6 - 0.4⇒R=4.2 Now, put x = 70 ⇒R=4.6 -…

Q: There are26 numbers on a list, and the mean is 25. The smallest number on the list is changed from…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: How is the goal of descriptive statistics served by putting scores in a frequency distribution?

A: It is an important part of statistics . It is widely used .

Q: The sample mean or sample proportion is unbiased estimator to the population proportion in case of…

A: The sample mean or sample proportion is unbiased estimator to the population proportion in case of…

Q: If in a discrete data, 75% of the values are less than 30, then......?

A: we know that,  If Q1 is first quartile then we can say that 25% data points are below Q1. If Q2 is…

Q: Assuming the regression line: P = 0.8 - 0.2X Then, at the value of X=4 that the linear regression…

A: Ycap=0.8-0.2*X  We want to find the intercept on X axis. Note: According to Bartleby Expert…

Q: The following refer to the following data set: 67 43 4. 99 What is the mean () of this data set?…

A: a. Mean: Mean is the expected or average value of a set of observations.

Q: A researcher wants to determine whether there is an association between weight and scores on the…

A: Given: R-value = 0.213 P-value = 0.3

Q: researcher collects data from 30 different individuals and wants to understand the correlation…

A: the sample size is n=30

Q: If we add a constant (say, d) for all data values, how this will affect the geometric mean ? Give…

A: Consider that x1, x2, x3, x4, x5, …. xn, are the data values. Thus, the GM (geometric men) can be…

Q: Describe the formula used to calculate a z-score?

A: The formula used to calculate z-score is

Q: If a person’s z score equals 2.08, what is their percentile?

A: Given info: The person’s z score equals 2.08.

Q: on a 100 item test romel got a score of 88 which is the 9th decile what does it mean

A: Di = i * (n + 1)  10 th data

Q: In order to measure the liking of an application developed, tasting people were asked to score…

A: If arithmetic mean is, A.M.= 2.90 And ∑nimi = 725 We know that,  Arithmetic mean is given by, A.M.=…

Q: What is the 75th Percentile of a data set when the Inter Quartile Range (IQR) is 12.5 and the first…

A:

Q: Suppose you wanted to determine the mean height of 8-year old boys living in the U.S. You select a…

A: It is given that a sample of 100 8-year-old boys mean height in the U.S. We were asked how can a…

Q: You want to estimate the percentage of statistics students who get grades of C or better. How many…

A: Obtain the sample size. The formula of sample size is, Obtain the area of probability in the right…

Q: What proportion of the general population has an IQ of 70 or less?

A: It is an important part of statistics. It is widely used.

Q: (a) the joint probability function f(x, y), (b) P[(X,Y) E A], where A is the region {(x, y)|æ+ y <…

A:

Q: A recent poll of 2940 corporate executives showed that the average price of their cars is $31,800…

A: Introduction: The poll consists of 2940 corporate executives. The average price of the cars owned by…

Q: A study was conducted to determine the proportion of people who dream in blaCk and white Instead of…

A: Two sample proportion test: Two sample proportion test is used to test the significance difference…

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.