3. The formula for finding 7th decile for a discrete frequency distribution is

Q: Use the central limit theorem to find the mean and standard error of the mean of the indicated…

A: mean = 112 s =37.1 n = 18

Q: The time required for housekeeping to clean a hotel room for the next customer varies between 25 and…

A: Obtain the time that represents the 70th percentile of this distribution. The time that represents…

Q: The systollc blood pressure (BP) of adults In the USA Is nearly normally distributed with a mean of…

A: Given Data Population Mean,μ = 121.0 Population Standard Deviation,σ = 15.0

Q: In a frequency distribution, the co-efficient of skewness based upon the quartiles in 0.6. If the…

A: Answer: From the given data,

Q: 2. Since the mean is computed from individual observed values, each of which contains an error, the…

A: Formula is given below.

Q: The following frequency distribution table represents data on age of 28 randomly selected customers…

A: The table helps to find the mean. Class interval Mid point, m frequency, f fm 10-20 15 5 75…

Q: Which of the following is NOT a type of frequency distribution? O a. Continuous O b. Natural O c.…

A: In the given problem we have to answer, which of the following is not a type of frequency…

Q: first four moments of distribution about the value 5 of the 10 and 15. Describe the nature of…

A:

Q: The area of the rectangle depicting a uniform distribution is always equal to the mean of the…

A: The area of rectangle depicting a uniform distribution is not always mean of the distribution.

Q: For grouped frequency distributions, the of a class is obtained by adding the lower and upper limits…

A: Given that  Grouped frequency distributions.   We know that  Mid point = Upper class limit + Lower…

Q: where the student t-distribution gragh is having more area than the area covered by normal…

A: Fromm the given information, The t-distribution is less concentrated around its peak on the other…

Q: Use the central limit theorem to find the mean and standard error of the mean of the indicated…

A: Central Limit Theorem for mean: If a random sample of size n is taken from a population having mean…

Q: The Central Limit theorem tells us important results that pertain to: The shape (type) of the…

A: Using Central limit theorem, we can find The shape (type) of the distribution of X-barThe mean of…

Q: If data came from a normal distribution, what fraction of the data will be classified as outliers…

A: Normal and Bi-Nomial Distribution:             Normal distribution is a bell shaped curve…

Q: Due to rounding, the total of the cumulative relative frequencies in the cumulative relative…

A: We have given that an statement about to cumulative relative frequency. We need to find out that the…

Q: In a frequency distribution, the co-efficient of skewness based on quartiles is 0.5. If the sum of…

A: In a frequency distribution, the co-efficient of skewness based on quartiles is 0.5. If the sum of…

Q: The marital status distribution of the U.S. male population, age 15 and older, is as shown below.…

A: The expected frequency is n ×pi

Q: To test if an observed frequency distribution with five classes is normally distributed, we need to…

A: To check if the observed frequency distribution with five classes is normally distributed we used…

Q: The mean body temperature will be determined for a randomly selected group of 14 individuals. Is…

A: In the world populations, normal body temperature follows a normal distribution with mean = 98.6…

Q: In order to apply the Central Limit Theorem, you need to focus on the: Select one: O a. the outcomes…

A: Hey, since there are multiple questions posted, we will answer the first question. If you want any…

Q: Assume that the wavelengths of photosynthetically active radiations (PAR) are uniformly distributed…

A: Given that  Assume that the wavelengths of photosynthetically active radiations (PAR) are uniformly…

Q: Can a variable that is measured at the ordinal level be grouped into a small number of intervals in…

A: Introduction:A grouped frequency distribution can be constructed from a raw data, by finding the…

Q: A random sample was taken of the thickness of insulation in transformer windings, and the following…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 2. Explain how cumulative frequency distributions are obtained. What do they allow us to do?

A: *answer :    The cumulative frequency is calculated by adding each frequency from a frequency…

Q: Use the central limit theorem to find the mean and standard error of the mean of the indicated…

A: The mean of the sampling distribution is, μx¯=μ=101 Thus, the mean of the sampling distribution is…

Q: Can a frequency distribution have overlapping classes? No Sometimes Can't determine. I need more…

A: In this case, we need to find the correct answer for the given statement.

Q: The median class of a certain distribution is at 55 - 59 with a cumulative frequency of 24. If the…

A:

Q: Cumulative frequency and cumulative relative frequency distributions are used to facilitate…

A: We get  Cumulative frequency  by adding the number of observation in each class interval to the…

Q: Here are histograms of the values taken by three sample statistics in several hundred samples from…

A: Given: Three sample statistics (histogram)

Q: 15. The shows the number of observations with values greater than the lower class boundary. A.…

A: Class boundary can be defined as the midpoint of the upper class limit of one class and the lower…

Q: Consider this question: What is the expected number of failures in 100 launches of a rocket that has…

A: Introduction: A random variable can be said to have the geometric distribution, if it counts either…

Q: Use the central limit theorem to find the mean and standard error of the mean of the indicated…

A: The sampling distribution of the sample means is a normal distribution because the population is…

Q: 2- For a semi-symmetric frequency distribution, if the median is equal to 26 and the arithmetic mean…

A: Given: For a semi-symmetric frequency distribution we have, Median = 26 Mean = 24

Q: The marital status distribution of the U.S. male population, age 15 and older, is as shown below.…

A: The expected frequencies are, Marital Status Frequency Percent Expected frequency Never married…

Q: Which of the following is correct about Histogram graph? a. Histogram can be drawn only for…

A: Correct option is a . Histogram can be drawn only for continuous frequency distribution

Q: Use the central limit theorem to find the mean and standard error of the mean of the indicated…

A: Given that, μ=114,σ=39.2,n=19 The mean and standard error of the mean of the indicated sampling…

Q: Why are unequal class intervals sometimes used in a frequency distribution? For the sake of variety…

A: Lets say we have decided that the class interval would be 'n' for a given Data to create a frequency…

Q: Can a frequency distribution have overlapping classes? Yes No Can't determine. I need more…

A: Grouped data:  The data which can be arranged  in the form of table is called grouped data.

Q: how to solve for the value of mean given of grouped date or frequency distribution?

A: A frequency distribution is a systematic presentation of the values taken by a variable along with…

Q: The relative frequency associated with a particular class in the population is the fraction of…

A: Relative frequency is the ratio of the frequency of a particular event to the total frequency.

Q: The marital status distribution of the U.S. male population, age 15 and older, is as shown below.…

A: The null and alternative hypotheses are stated below: H0: The age group of males fits the…

Q: The following is the frequency distribution of the sample weight from field of chickens in grams,…

A: The given data is,  weight No. of chickens 720-700 10 700-680 20 680-660 25 660-640 20…

Q: When taking a sample for research we need to be mindful of the Central Limit Theorem which assumes…

A: Central limit theorem :  The central limit theorem tells , exactly what the shape of the…

Q: The per capita consumption of red meat by people in a country in a recent year was normally​…

A: The mean for the sampling distribution is, μx¯=μ=109 Thus, the mean for the sampling distribution is…

Q: I am producing 400-gram loạf breads in one of my production lines and measured the weights of 28…

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

Q: A grouped frequency distribution has been obtained for the number of personnel working in 100…

A: Given,The no.of personnel working in 100 workplacesand X=48.98

Q: For a distribution, the mean is 10, variance is 16, y, is + 1 and B, is 4. Obtain the tirst tour…

A: Given that, for a distribution,  the mean is 10, variance  is 16, γ1 is +1 and β2 is 4. We need to…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.