23. What is the probability that a random sample of 15 students would have a mean less than 1447? a 385 b. .002 C. 011 d. 983 e. 092

Q: Suppose a random sample of 1084 athletes from the college are asked what their major is. The table…

A: SolutionGiven: A random sample of 1084 athletes taken from the college are asked what their major…

Q: 1. If we have 1000 scores, normally distributed with a mean of 92 and an SD of 7, how many would be…

A: GivenMean(μ)=92standard deviation(σ)=7

Q: 8) For a random sample of size 64, find the probability that the sample mean will lie between…

A:

Q: 2. The principal of the school claims that the main age of tne teachers is 48 years. The mean age of…

A:

Q: 13.12. Question attached. Thank you for answering my question!

A: McNemar test is an alternative to paired t-test when binary data is available. For the purpose of…

Q: One sample has n = 6 and M = 10. A second sample has n = 4 scores with M = 15. If the two samples…

A: Combined mean = n1x1¯+n2x2¯n1+n2

Q: 2. Given a normally distributed population with μ = 110 and σ = 20, if samples of size 100 are drawn…

A: Sampling distribution of (x¯): If simple random sample of size n is drawn from Normal population…

Q: Suppose a random sample of 900 athletes from the college are asked what their major is. The table…

A:

Q: Fill in the expected frequencies.

A: here use given data table  Outcome Observed Frequency Math/Science 318 Arts &…

Q: What is the probability of randomly selecting a sample of n = 36 with a value greater than M = 63…

A: given: M=63 n=36 mean=60 standard deviation = 12

Q: The working hours of 10 randomly selected students for the applied statistics course during the week…

A:

Q: Given the population 4,5,6,7,8 and a sample size of two, create a frequency and probability…

A: Given population is 4,5,6,7,8 N=No. of samples in population=5 Select a sample size=n=2

Q: D what is the variance hr tece following setof scoms? Scones;4,17

A: From the provided information, The scores are as follow: 4, 1, 7

Q: Find the standard deviation for the set of numbers. 9, 16, 7, 14, 6, 6, 7, 13, 17 O 4.2 4.8 O 4.4 O…

A: From the provided information, Sample size (n) = 9 The sample mean can be obtained as:

Q: .In sampling a large number of electronic chips manufactured by a machine, the mean number of…

A: First we have to find the probability of atleast 3

Q: Are our kids getting taller? The average height of kindergartners in 1950 was 39.5 in. The data…

A: From the given information, The average height of kindergartens in 1950 was 39.5. The sample data is…

Q: A random sample of 250 undergraduate students from a large university was found to contain 67…

A:

Q: 3. The following frequency distribution shows the number of times an outcome was observed from the…

A: From the given information, Sample size (n)  =2400 When die is thrown , probability of getting each…

Q: Answer the following questions. 1. In a selection of 15 slots of 200 automotive spare parts, the…

A: According to our guidelines we can answer only  first question and rest can be re posted .

Q: Previously, an organization reported that teenagers spend 12.5 hours per week, on average, on the…

A: Note: " Since you have asked multiple sub-parts, we will solve the first three sub-parts for you. If…

Q: Suppose a random sample of 1060 athletes from the college are asked what their major is. The table…

A: The total number of observed frequencies (N) is 1,060.

Q: Notice that the expected frequencies are missing. What are the correct expected frequencies?

A:

Q: Find the probability that a single randomly selected value from the population is greater than…

A:

Q: In how many ways can a statistician select a sample of 15 people from a population of 90 people?

A: Given,A statistician select a sample of 15 people from a population of 90 people.

Q: A fire insurance company thought that the mean distance from a home to the nearest fire department…

A:

Q: 3. The farther that sample means are into the tail of the sampling distribution, the lower/higher…

A:

Q: What is the probability of randomly selecting a sample of n = 4 with a value greater than M= 63 from…

A: n = 4 M = 63 u = 60 s = 12

Q: 2. Find the mean, median, and mode: 1.25 1.00 1.50 2.00 2.25 1.75 3.00 2.75 2.50 1.50 3.00 2.50 2.75…

A:

Q: Suppose you wish to estimate a population mean based on a random sample of n observations, and prior…

A: The population standard deviation is 12.7, the margin of error is 1.6 and probability(or confidence…

Q: The Buffalo distributor wants to find out whether there is a difference in the mean sales for cola…

A: Given: A buffalo, your cola distributor is featuring a super special sale on 12 packs. She wonders…

Q: 3. There is a teacher shortage across the nation. A random sample of teachers for different school…

A: Data given    High school Middle school Elementary Total Satisfied 35 30 62 127 not satisfied…

Q: Suppose that in a large class, the instructor announces that the average grade on an exam is 75.…

A: In a large class, the instructor announces that the average grade on an exam is 75. The two…

Q: Suppose a random sample of 824 athletes from the college are asked what their major is. The table…

A: Obtain the expected frequencies. The expected frequencies are obtained below as follows : From the…

Q: 2. For Americans using library services, the American Library Association claims that at most 70% of…

A: Given: The random sample of patrons selected are n=100. The number of patrons who borrowed books are…

Q: Suppose a random sample of 816 athletes from the college are asked what their major is. The table…

A: Given below are the observed frequency of the random sample of 816 athletes from the college who are…

Q: 8. Use the figure to the right, which shows the percentages of adults from several countries who…

A: Given Information: Country A: Sample size (n1) = 1003 Sample proportion (p^1) = 49% = 0.49 Country…

Q: Consider the patient data in the table below. Suppose that patients are randomly selected with…

A: The number of LWBS patients in hospital 4 is 242 and the total number of patients in hospital 4 is…

Q: Suppose that we have a random sample of 8 students with final exam scores: 43, 55, 96, 33, 37, 78,…

A:

Q: I want to find out the average number of people per household in the U.S. I survey a simple random…

A: Given, Household size, (x) Number of households, f(x) 1 27 2 34 3 16 4 13 5 6 6 3 7…

Q: Previously, an organization reported that teenagers spend 12.5 hours per week, on average, on the…

A: t-test: If the given sample size is less than or equal to 30 then that is a small sample test.…

Q: Compute the mean, median, and mode time. 68.3, 72.9, 90.7, 111.6, 128.4, 98.1, 94.7, 122.2

A: mean- the mean (average) of a data set is determined by adding all numbers in the data set and then…

Q: 4. Suppose that only 10 students in Nabatieh campus had taken the midterm. Which of the following…

A: We know that, here  n= 10 (even) So median=(n/2 +(n/2+1)th term)/2 = (5th +6th term)/2

Q: Use a 0.05 significance level to test the claim that males and females have the same mean BM Male…

A: The claim is males and females both have the same BMI. The given data is,   n1=80, x1=26.3,…

Q: Suppose a random sample of 1012 athletes from the college are asked what their major is. The table…

A: Given data: Total count = 1012 To fill  the expected frequency

Q: 9. A researcher estimates that the average height of the buildings of 30 or more stories in a large…

A: Given data: Mean = 700 feet Sample size = 10 Significance level  = 0.025

Q: According to the NIMH website the average number of adult Americans diagnosed with a “serious mental…

A: Note: "Since you have posted a question with multiple sub-parts, we will solve the first three…

Q: What is the probability that the mean balance for the selected sample is above $295? What is the…

A: n = 200 mean = 300 s = 56

Q: Suppose a random sample of 808 athletes from the college are asked what their major is. The table…

A: The Goodness of Fit Test:-  This test enables us to find if the deviation of the experiment from…

Q: What is the sample variance and estimated standard error for a sample of n = 25 scores with SS =…

A: The random variable X follows normal distribution. We have to find the sample variance and standard…

Q: It is claimed that the mean household size in the River Terrace neighbourhood is 3.5 persons. A…

A: Given that ; Population mean (μ) = 3.5 persons Sample size ( n) = 25  Note :  according to the…

Average

In mathematics, everyone must have heard the term average in one place or other. Almost all types of calculation require taking out an average. In everyday life, the term is used for denoting a certain amount that can be said to be a typical quantity for multiple people or objects. In other words, if a group of people possesses a certain object, then the average gives us an idea regarding the quantity of the object possessed by each person. However, this is solely based on mathematical calculation. It is important to note that most people will not strictly have the average value in a group.