The average price of a personal computer is $949. If the computer distributed with a standard deviation of $100... the top 20% of personal computers cost more than what amount?

Q: 5 2. As shown in the table below, a person's heart rate during exercise changes as he gets older.…

A:

Q: A die is rolled 500 times and produced the following results: 1 96 times; 2- 73; 3-89; 486; 5-81;…

A: A die is rolled 500 times and produced the following results:  1- 96 times; 2 - 73;  3- 89;  4- 86;…

Q: Table 2: Number of Employees of San Manuel Corporation Department Number of %(.0000) (a) (b)…

A: The objective is to allocate an appropriate sample size for each department. .

Q: Let S(x) = "x is a student at Leeward Community College"; F(x) = “x is a faculty member at Leeward…

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Q: Suppose that the time spent by children under the age of 12 in front of a screen per year has the…

A: 1. The provided information is  µ=1500 σ=250 n=12…

Q: card is drawn at random from the pack of 52 cards. (i) Find the Probability that it is an honor…

A: The provided information is  There are 52 cards    (i) Total number of honor cards {A,J,Q,K}=4 Total…

Q: A sample space i S-(0, 1, u, a). Define event A-(e, a} and B-{w, a, x). Suppose P(s)-0.22, P(w)…

A: Given P(u) =0.22, P(w)=0.36, P(x) =0.27

Q: Find a 99% confidence interval for the population mean for the data set (120, 80, 83, 115, 95, 90,…

A: Solution-:

Q: The weights (in ounces) of 3 types of women's shoes are shown below. At 5% level of significance,…

A: Given information: Variable of interest= Shoe type  Types of shoes=1.Dress heels  2. Dress flats…

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A: As per the Bartleby guildlines we have to solve first question and rest can be reposted... Given…

Q: that has a sharper-rising center peak than the peak of a normal is called and has a kurtosis. A…

A: Kurtosis measures how heavy the tails of the distribution are.

Q: The number of pages in a PDF document you create has a discrete uniform distribution from 3 to 10…

A: Given The number of pages in a PDF document you create has a discrete uniform distribution from 3 to…

Q: Prove using the properties of set operations: a. ((AUB)–C)° = (A–C) – (B – C)

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Q: The table below summarises the height, X₁ (in inches), and the weight, X2 (in pounds) of a random…

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Q: fast please A random variable X is exponentially distributed with decay parameter 1/12 (…

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Q: An outlier is a data point that a) should sometimes be left out of a statistical analysis Ob) may be…

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Q: students.

A: Clearly, the number of classes is 11 as we have 11 columns in our histogram.

Q: A postmix beverage machine is adjusted to release a certain amount of syrup into a chambe where it…

A: Formula : CI=point estimate ± ME

Q: d. The work done (in mega joules) by two machines A and B was recorded for six consecutive days.…

A: Claim : the difference is larger than 10 mega joules.

Q: Statistical Analysis - Data Management  For the following graph, answer the following: mean,…

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Q: During the exam you will be using a sample of 500 adults with the following variables: ●…

A: Introduction: The most appropriate chart is to be identified.

Q: Use the given data test the indicated X S a Me 10 191 96.7 37.5 0.05 M²90

A: Given that n=191 x=96.7s=37.5α=0.05

Q: It is believed that, due to the ages in which children are enrolled in schools, certain children…

A:

Q: 1. A student listed 10 of his classmates' scores: 34, 42, 27, 34, 45, 32, 31, 44, 33, 31 a.…

A: Formula : sample mean : x̄=Σx/n

Q: b. A researcher wants to investigate whether people who have high sugar levels can benefit from a…

A: The question is about paired t test Given :

Q: Based on your answer above, please choose the correct letter for the answer from the choices I…

A: Given data: Diet A Diet B Diet C 3 10 8 6 12 3 7 11 2 4 14 5   8      6

Q: The bar chart shows the percentage of small, medium, large companies which used social media for…

A: Bar chart shows the percentage of small, median and large companies which used social media for…

Q: Suppose Y is normally distributed with mean 5.4 and variance 1.69. Determine the following…

A: Given: Mean μ=5.4 Standard deviation σ=1.69=1.3

Q: 9. Suppose you have regressed your firm's weekly sales on the number of weekly television ads you've…

A: Regression Analysis Regression analytics is the application of statistical methods used to measure…

Q: hich of the following statement is not correct about the central limit theorem? Group of answer…

A: The not correct answer is  As the sample size n increases, the graph of the averages approaches the…

Q: 3. The following data shows the results of 4 students in a 50-item multiple choice exam: 47, 36, 42,…

A: The provided information is  x x2 47 2209 36 1296 42 1764 35 1225

Q: A new process in manufacturing fertilizers was designed to produce a mean of 880 tons per day. to…

A: Given Information: Hypothesized value of population mean μ=880 Sample size n=50 Sample mean x¯=871…

Q: Provide the critical region, and t-value. 1. An educator claims that the average salary of…

A: given data : 600,560,600,550,700,550,600,850,900

Q: 12. Which of the following terms does NOT describe A. lower C. decreased D. influences 13. Which of…

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

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Q: 4. For each of the following functions, Find c so that the function is a PDF. a) (cx² + x) 10.11(x).…

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Q: The estimated 95% Confidence Interval for Mean Income is 22,138 to 22,510. Which of the following…

A: Solution Given the 95% CI for the mean is (22,138 , 22,510)

Q: About what percent of the 6 and 8 cylinder cars get a larger MPG than the 4 cylinder car with the…

A: Observation :  Lower end of the whisker of boxplot of 4-cylinder cars has same height as median line…

Q: ant Relationship: is a functional relationship between Price of an IPod Touch,p and Wee is a table…

A: Given,

Q: 1. Below are the number of hours spent by teachers and students in using gadgets daily. A sample of…

A: given data

Q: A sample consists of the following n = 6 scores: -2, 7, 6, 4, 1, 3 What is the mean? M = 3.17 What…

A: Solution-: Given data: -2,7,6,4,3,1 We want to find  (a) Mean (M)=? (b) The standard deviation (s)…

Q: If data show that a particular exercise has a strong negative correlation with an individual's…

A: Given, If data that shown that a particular exercise has a strong negative correlation with an…

Q: 1. The scores on a test have a mean of 100 and a standard deviation of 15. If a personnel manager…

A: 1. The provided information is  µ=100 σ=15 P(X>a)=0.75…

Q: According to the American Time Use Survey, Americans age 15 and over spend an average of 2.86 hours…

A: Solution-: Given: μ=2.86,σ=1.21 We want to find, (a) P(x<2.77)=? (b) P(x¯<2.77)=?

Q: Find the proportion of Normally distributed observations with a z-score above 0.80. Give your answer…

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Q: Car Mazda RX4 Mazda RX4 Wag Datsun 710 Hornet 4 Drive Hornet Sportabout Chrysler Valiant mpg 21 21…

A: To estimate the population in a typical research study for a particular degree of accuracy the…

Q: In a study, the sample is chosen by dividing the population into voting precincts, and sampling…

A: Explanation: Here given the question  Find the what is the sampling method  Finally the option d…

Q: Assume that a sample is used to estimate a population mean . Find the 99.5% confidence interval for…

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Q: Out of 500 people sampled, 250 preferred Candidate A. Based on this, estimate what proportion of the…

A: Solution-:  Given: n=500, X=250, c=0.99 We want to find 99% C.I. ........<p<........

Q: 1. What is the mathematical symbol to be used in stating the claim: The average grade of Grade 11…

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