Use the display of data to find the standard deviation (do not round until the final answer, then round to the nearest hundredth as needed)

Q: A political candidate wants to enter a primary in a district with 100,000 eligible voters, but only…

A: We have given that  Favourable cases, X = 880 Sample size, n = 1600 Proportion, p = 0.55

Q: What would be your critical t-score? O Cannot be answered without a chosen level of significance,…

A: We have given that  Population mean = 84 Sample mean = 87 Sample size = 25

Q: Salary information regarding male and female employees of a large company is shown below. Male…

A: Let X1 represents male and X2 represents female. Here given that, n1= 64 , x̄1= 45, σ12= 128 n2= 36,…

Q: Suppose you roll two dice. d) What is the probability the sum is 8? e) What is the probability that…

A: 2 dice thrown Number of possible outcome Number of Possible outcome=62=36

Q: a survey, 80% of the people interviewed were unaware that maintaining a healthy lifestyle could…

A:

Q: You have attached in the MS-Excel file data on residential houses; their prices, facilities,…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts(means,…

Q: The heart rates of 20 patients in am icu have mean 95.3 beats/min standard deviation 16.9 beats/min…

A:

Q: Data/565-Hypothesis testing for comparing population means uses the difference (x1 - x2) where the…

A: For testing the hypothesis that,  H0: u1-u2= 0  H1: u1-u2=!0  (Comparison of 2 means) We use z test…

Q: The following data were obtained from a repeated-measure research study. What is the value of MD for…

A: The following data were obtained from a repeated-measure research study What is the value of MD for…

Q: 2,...,A3 a populati ng meanu and variance Which of the estimators have a variance of u? X1+X2++X7 7…

A: Solution

Q: You measure 37 dogs' weights, and find they have a mean weight of 70 ounces. Assume the population…

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Q: a < 0; -두, 0Sr<1; 15< 3; 0. F(x) = { 3 Sa< 4; 21 a 2 4.

A: A continuous function f(x) is said to be the probability density function of the continuous random…

Q: An educational psychologist is studying two methods of tutoring young children: Method A and Method…

A: We have given that,  x̄1 = 43, s1 = 8, n1 = 11 And x̄2  = 42, s2 = 7, n2 = 10

Q: number of admissions per 24-hour period with a 99% confid OA 1945886 OB 19.41.471 OC. 19.410210 OD.…

A: The director randomly selects 49 different 24-hours periods; n=49 x=19.4σ2=16α=0.01

Q: Who determines the probability with impressive accuracy, that the binomial distribution converged to…

A: In year 1733, De Moivre invented a formula to approximate binomial sums or probabilities when the…

Q: Below are four data sets and descriptions, given as a list or a table. State which are categorical…

A: Note: As per the guidelines, if multiple questions are posted, we are allowed to answer single…

Q: from the given parameters of the population and sample size. and ox Determine p=81, o = 18, n= 36…

A:

Q: Calculate the probability (as a percent) of the following 7-card hand: AAABBCC (three cards of the…

A: Let us suppose there are three marbles viz. a red, a green and a blue. From these, there are three…

Q: To decide on a movie to watch, a group of friends all vote for one of the choices (labeled A, B. and…

A: Given that the , To decide on a movie to watch, a group of friends all vote for one of the choices…

Q: The following data set shows the distances a car drives (in miles) on a full tank of gas after…

A: Five number summary is,  Min, Q1, Median, Q3, Max Min= 215  Sample size is n=15 First quartile, Q1=…

Q: In a classification setting the primary objective should always be to achieve the lowest possible…

A: To categorization any experiment, our goal is always be to achieve the lowest possible error rate or…

Q: The amount of time that people spend at Grover Hot Springs is normally distributed with a mean of 60…

A: Given,mean(μ)=60standard deviation(σ)=15

Q: A simple random sample of size n= 79 is obtained from a population with ji= 88 and 8= 10. Does he…

A:

Q: A certain airline wishes to estimate the mean number of seats that are empty on flights that use…

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Q: A researcher obtains M = 45 with SS = 250 for a sample of n = 10 women and M = 49 with SS = 270 for…

A:

Q: The scores on a test are normally distributed with a mean of 110 and a standard deviation of 22.…

A: Let X be the random variable from Normal distribution with mean (μ) = 110 and standard deviation (σ)…

Q: A=66 M=6 The number of rejected quality control items in a production line has a Poisson…

A: GivenA=66M=6Mean of M per dayi.e., 6 per day λ=6Let "x " be the no.of rejected quality control items…

Q: find the margin of error at a 98% confidence level

A: here given n= 22 sample mean  = 45  s = 5

Q: The sample data is given as, 1470 1510 1690 1740 1900 2000 2030 2100 2190 2200 2290 2380 2390 2480…

A: Given data is…

Q: 1) Which of the following statements is/are true? I. Non-probability sampling becomes more efficient…

A: The given two statements are,  1. Non-Probability sampling becomes more efficient for heterogeneous…

Q: If (X(t); t e T} be a time series then for any t, t2 define the autocovariance function (t1,t2) =…

A: Given information: It is given that {X(t); t e T} be a time series for any t1, t2.

Q: To determine the effects, researchers measured the LDL levels of 36 randomly selected men and 41…

A: Solution-: Given:               For women:n1=41,x1¯=15.4,σ1=1.9  and  For men: n2=36,x2¯=13.3,σ2=1.3…

Q: B. Find the critical value za that corresponds to the given confidence level. 1. 92% 2. 94% 3. 96%…

A:

Q: The following hypotheses describe a _-tailed test. Ho : µ = 25 HA: µ + 25 three two one four

A: Given,H0:μ=25HA:μ≠25

Q: 14. Given the following data for demand at the XYZ Company, calculate the monthly forecast using a…

A: The objective is to calculate the forecast error, absolute deviation, mean absolute deviation, bias…

Q: The reading speed of second grade students in a large city is approximately normal, with a mean of…

A:

Q: For each of the following statements, indicate whether you believe the statement is true or false.…

A: Correlation measures linear strength between two variables X and Y

Q: In a classification setting the primary objective should always be to achieve the lowest possible…

A: Answer:TRUE In this scenario,the main goal should always be to achieve the lowest possible error…

Q: A sample of n = 24 data values randomly selected from a normally distributed population has variance…

A:

Q: The amount of coffee that people drink per day is normally distributed with a mean of 14 ounces and…

A:

Q: The age when smokers first start from previous studies is normally distributed with a mean of 13…

A: GivenMean(x)=13standard deviation(σ)=1.5sample size(n)=34confidence interval=99%

Q: Describe the sampling distribution of p. Assume the size of the population is 25,000. ch n= 800, p=…

A:

Q: Bölls from machine À contained 25 defective bolts, while an independently chosen, random sample of…

A:

Q: 13% of all Americans suffer from sleep apnea. A researcher suspects that a lower percentage of those…

A:

Q: To study the effect of temperature on yield in a chemical process, five batches were produced at…

A: Analysis of variance table: Excel Procedure: Enter the data for 50C, 60C and 70C in Excel…

Q: A psychologist is interested in constructing a 99% confidence interval for the proportion of people…

A: Given that  n=712 , X=66  99% confidence interval

Q: A professor had students keep track of their social interactions for a week. The number of social…

A:

Q: What is the selection of a subset of a population where each element has an equal chance of being…

A: here use basic of sampling method

Q: 1-13. A bin of 50 parts contains 5 that are defective. A sample of 10 parts is selected at random,…

A: 1-13) The given information is  50 parts contain 5 defective. A random sample of 10 parts is…

Q: discharge of suspended solids from a phosphate mine is normally distributed, with  a mean daily…

A: