Calculate the variance and standard deviation for the following sample: (Round your answers to the nearest tenth.) 15 15 22 45 10 30 Variance Standard deviation

Q: Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed…

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Q: Listed below are systolic blood pressure measurements​ (mm Hg) taken from the right and left arms of…

A: Answer: From the given data, Given data is paired samples and the differences have a distribution…

Q: According to the latest research 91% of people are right handed. In a sample of 120 people, what is…

A: Given: p = 0.91 n = 120 Formula Used: Mean = n×p

Q: Which pair of events are independent? P(A)=0.55, P(B) =0.65 or p(A&B) = 0.35?

A: We have given- P(A) = 0.55 P(B) = 0.65 P(A & B) = 0.35 We have to find weather it is an…

Q: A frequency table displaying professor Blount's last statistic test is shown. Find the best estimate…

A:

Q: Suppose that the average number of Facebook friends users have is normally distributed with a mean…

A: given data normal distribution μ = 150σ = 58n = 48

Q: n a random sample of​ males, it was found that 28 write with their left hands and 208 do not. In a…

A: given data for male:x1=28n1=208for female :X2=74n2=459α=0.01claim:the rate of​ left-handedness among…

Q: Identifying individuals with a high risk of Alzheimer's disease usually involves a long series of…

A: Given information: 7-Minute Screen Cognitive Series 3 11 8 19 10 22 8 20 4 14 7 13…

Q: Find the 5 number summary for the data shown. 3 4 12 22 26 27 29 42 46 57 63 71 78 82 83 5 number…

A: HERE  data scores  are given we have to find out the five number summary for the given data for five…

Q: EXAMPLE 6.16 A self-service store employs one cashier at its counter. Nine customers arrive on an…

A: Given arrival rate~Poissson(λ=9 per 5 min or 9/5=1.8 per minute) and service rate~Exponential(μ=10…

Q: Find the P-value for the following values of the test statistic f, sample size n, and alternate…

A: Given: t = -1.467 n = 21 H1 : μ ≠ μ0

Q: Determine the correlation coefficient for the data shown in this table: x 1 8 8…

A: Given

Q: (P(A) = 0.80, P(B ) = 0.70, P(A&B)= 0.56 Which pair of events are independent?

A: The given probabilities are PA=0.80,PB=0.70,PA&B=0.56.

Q: A researcher claims that the number of homicide crimes by season is uniformly distributed. To test…

A:

Q: Example 2.9 Suppose that a particular trait of a person (such as eye color or left handedness) is…

A: Given that both parents are hybrid (rd), and that hybrid and pure dominance are alike in appearance…

Q: The average number of miles (in thousands) that a car's tire will function before needing…

A: given data normal distribution μ = 67σ = 17n = 49

Q: < Prev The table below gives the age and bone density for five randomly selected women. Using this…

A: Solution : The coefficient of determination is denoted by r^2.

Q: . For each of the following, determine the sample size needed to get the desired accuracy of the…

A: For the first part we have to find sample size needed when  margin of error, population standard…

Q: Internet Viewing A researcher wishes to estimate the average number of minutes per day a person…

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Q: A study was done about violence against prostitutes and the symptoms of the posttraumatic stress…

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Q: (t Test (in Excel) for Two Samples with Unequal Variances) In an agricultural experiment, the…

A: Given:-              Significance level =  0.01

Q: GIVEN A LARGE POPULATION WITH MEAN OF 75 AND STD DEVIATION OF 12 THE PROPABILITY THAT THE MEAN  OF A…

A: From the provided information, Mean (µ) = 75 Standard deviation (σ) = 12 Sample size (n) = 36

Q: = statistic Y = X a sufficient statistic for 0? Why? (y; 0) be the pdf of Y. Is the family {fy (y;…

A:

Q: Data for gas mileage (in mpg) for different vehicles was entered into a software package and part of…

A: Formula for  coefficient of determination :  R2 = 1-SSESST Where,  R2 is coefficient of…

Q: A distribution of values is normal with a mean of 150 and a standard deviation of 15. From this…

A: given data  normal distributionμ = 150σ = 15n = 23 for middle 58% of sample means,  P(-Z&lt;x¯&lt;Z)…

Q: The test for the equality of two population variances is based on which of the following? a The…

A: In testing of hypothesis, the population is often assumed to have normal distribution. This is…

Q: Are male college students more easily bored than their female counterparts? This question was…

A: First we state the hypothesis for testing the difference of two means,  H0: The mean Boredom…

Q: Which pair of events are independent?   P(A)=0.80, P(B) = 0.70 or P(A&B) = 0.56?

A: The given probabilities are PA=0.80,PB=0.70,PA&amp;B=0.56.

Q: Approximately 72% of persons living in Cape Town who are aged 70 to 84 live in elderly care…

A: From the provided information, Approximately 72% of persons living in Cape Town who are aged 70 to…

Q: Adjust the Style: ● On the toolbar, select Switch Row/Column. O The bar labels might appear…

A: Enter the data into the excel sheet as follows:

Q: The Australian sheep dog is a breed renowned for its intelligence and work ethic. It is estimated…

A: Given information- We have given that 45% of adult Australian sheep dogs weigh 65 pounds or more.…

Q: Suppose the probability of an irs audit is 1.4 percent for us tax payers who file form 1040 and who…

A: Given Probability of audit =1.4% Probability of no IRS audit=1-0.014=0.986

Q: Solve the attached questions. Below are its answer choices: a) 238.709 b) 1347.088 c) 236.709 d)…

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Q: Cell Phone Call Lengths The average local cell phone call length was reported to be 2.32 minutes. A…

A: The following information has been provided: The population mean is μ=2.32. The sample size is n=23.…

Q: What is the LSRL fequation or the given data? x 3 4 7 13 15 16 y…

A: Given   x    3     4     7     13     15     16     y    41     37     26     21     24     11…

Q: Consider a data frame of a one-way data set composed of 8 groups with total sample size of N=87. In…

A: Given that, There are 8 groups, K = 8  Sample size (n) = 87  One way ANOVA is performed.

Q: ng hole's welcoming atmosphere helps men get tresses of modem life and is vital for their psycho-…

A:

Q: Suppose that p(x, y), the joint probability mass function of X and Y, is given by p(1, 1) = 0.5,…

A:

Q: Based on a survey, 36% of likely voters would be willing to vote by internet instead of the…

A: given data  P(do internet voting) = p = 0.36 sample size(n) = 12 x= no. of people do internet voting…

Q: Following are weights in pounds for random samples of 16 newborn baby boys and baby girls. Box plots…

A:

Q: Seventy percent of the light aircraft that disappear while in flight in a certain country are…

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Q: ased on the square footage (in 100 square feet). Predict the price of a 3000 square foot house (in…

A:

Q: What is Marginal Probability Distribution (Discrete case)?

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Q: The average production cost for major movies is 63 million dollars and the standard deviation is 23…

A: GivenMean(μ)=63standard deviation(σ)=23sample size(n)=50

Q: Suppose X has the following probability mass function: p(1) = 0.5, p(2) = 0.3 p(0) = 0.2, Calculate…

A:

Q: A shop uses a control chart on maintenance workers based on maintenance errors per standard worker-…

A:

Q: A study claims that on average, male high school students spend at least 3.39 hours a day playing…

A: Type I error = a  = P(Reject H0/ when H0 is true)    Given that, population mean = 3.39  Population…

Q: Area = 0.3783 z = 70 Z 2) Find the indicated z-score shown in the graph to the right.

A: 1.z  score shown in the graph to the right =?P(Z&lt;zc)=0.3783we have to find out the  z score value…

Q: QUESTION 5 In a prior sample of corn, farmer Carl finds that 16% of the sample has worms but the…

A: Givensample proportion(p^)=16%=0.16Margin of error(E)=1.5%=0.015Confidence level=90%

Q: Use the pizza cost and the subway fare in the table below to find the regression equation, letting…

A: Followings are the Explanation of the question  Use the Linear regression  Linear Regressions:- 1)…