Question 14: Suppose are running a study/poll about the proportion of women over 40 who regularly have mammograms. You randomly sample 108 people and find that 99 of them match the condition you are testing. Suppose you are have the following null and alternative hypotheses for a test you are running: H0:p=0.9H0:p=0.9 Ha:p>0.9Ha:p>0.9 Calculate the test statistic, rounded to 3 decimal places

Q: Prove: Let X₁, X₂,..., X be a r.s. from N(44,02) and Y₁,₂,..., Y, be another independent r.s. from…

A: Given the independent random variables X1, X2, . . . , Xn1~Nμ1, σ12 Y1, Y2, . . . , Yn2~Nμ2, σ22

Q: Compute the range and sample standard deviation for strength of the concrete (in psi).

A: here given data of strength of concrete

Q: concentration

A: Given, significance level (α) = 0.01 For Sample 1 : sample size (n1) = 15 sample mean (x̄1) = 7.5…

Q: y QI:: Let X₁, X₂ ~ N(0,1) 1) X1-X₂ X₁ + X2 2) (x1+x²)2 X₁-X2 what dist of 2X² 3) x² + x²

A:

Q: Linda is considering opening a bed and breakfast inn near Santa Fe, New Mexico. She thinks that the…

A: Given data: mean (μ) = 1600 and population standard deviation (σ) = 400.

Q: 0.90 z∗=1.645 0.95 z∗=1.960 0.99 z∗=2.576   A poll reported 46% support for a statewide election…

A:

Q: For the points below find the regression line using least square fit. Please draw the full table as…

A: Given Information: Consider the given data: x y 1 10 2 6 3 9 4 50 5 22 6 20 7 30…

Q: In a test of weight loss programs, 200 subjects were divided such that 40 subjects followed each of…

A: Solution-: Given:  α=0.025 We have the following ANOVA table: Source SS DF MS Fstat P-value Fcrit…

Q: Suppose the National Transportation Safety Board (NTSB) wants to examine the safety of compact cars,…

A: Given information: Table representing given data:   Compact cars Midsize cars full-size cars…

Q: If the auto parts sales have increased, find the probability that car sales will also increase…

A: The probability that car sales will increase next month is 0.45. The probability that sale of auto…

Q: Given that: Population mean, μ = 8 Sample mean, x = 7.9 Population standard deviation, o=0.6 Sample…

A:

Q: 5.tac uses the facebook app everyday. He used the app for 9 hours last Monday with the equivalent…

A: Probability distribution

Q: Prove. Let X₁, X₂,..., X be a r.s. from N(µ,σ²) and Y₁,Y,₂,...,Y, be another independent r.s. from…

A:

Q: estion 20: Based on the data shown below, calculate the correlation coefficient (rounded to three…

A: Given data, X Y X*Y X*X Y*Y 1 9.41 9.41 1 88.5481 2 9.62 19.24 4 92.5444 3 10.13 30.39 9…

Q: When the following data is displayed in a frequency table of 6 classes, the class length will be:

A: Here number of classes = 6

Q: 8. Suppose people enter a waiting room according to a Poisson process of rate A. Whenever there is a…

A: we have given that,  X = entering in a waiting room follows poisson with parameter λ therefore, pdf…

Q: Assume that a sample is used to estimate a population proportion p. Find the 99.9% confidence…

A:

Q: Compute for the standard elemental time using the given data: Actual Time = 10.5 sec, Performance…

A: Given : Actual time = 10.5 sec Performance rating = 1.05 Fatigue allowance = 15 %

Q: Evaluate the following da √(x - X 1)(x-2)(x-3) integral

A:

Q: Office projects have a mean time of 114 days to be completed with a standard deviation of 456 hours.…

A: GivenMean(μ)=114 daysstandard deviation(σ)=456 hours=45624=19 days

Q: An insurance company prices its Tornado Insurance using the following assumptions: • In any calendar…

A:

Q: Assuming that AP Music Theory scores are approximately normally distributed, what score was at the…

A: here given  mean  =  2.99  standard deviation =  1.32

Q: Prove: Let X₁, X₂,..., X„ be a r.s. from N(µ,σ²) and Y₁,Y,₂,..., Y be another independent r.s. from…

A: Given the independent random variables X1, X2, . . . , Xn1~Nμ1, σ12 Y1, Y2, . . . , Yn2~Nμ2, σ22

Q: 12) A newspaper article about the results of a poll states: "In theory, the results of such a poll,…

A: Hello. Since your question has multiple, we will solve first question for you. If you want remaining…

Q: 7) إذا كان( ,4)x~b فأن ((P(x( < E(x هو : ب) 0.5123 0.2531 (¹ 0.1532 ( 0.3125 (

A: Given;x~b(4,12)  i.e. x has binomial distribution.where n=4  and p=12find P(x&lt;E(x))=?

Q: What is a 99% confidence interval estimate of the true mean purple yam content of the manufactured…

A: It is given that  Mean = 194 Standard deviation = 10 Sample size = 40 Claim: The containers contain…

Q: Assuming that averages on a statistics exam are normally distributed, arrange the following in…

A: here use basic of normal distribution and percentile

Q: TE (A) Let x represent the number of years since 1980 and find a cubic regression polynomial for the…

A: Regression analysis Here x represents years since 1980 and y represents per capita consumption of…

Q: For a recent 10k run, the finishers are normally distributed with mean 63 minutes and standard…

A: Given problem is normal distribution Mean=μ=63 S.D.=σ=14 Let, X~N(μ=63,σ=14) Then Z=X-μσ follows…

Q: Assume that the average full time college student in the U.S. requires a total of $10,500 per year…

A: Given Mean=10500 Standard deviations=1300 n=50

Q: Españ A biologist is studying rainbow trout that live in a certain river and she estimates their…

A:

Q: Assuming that sleep debt times are normally distributed and the 37th percentile is 41.2 minutes,…

A: here given   An organization has conducted polls on the sleeping habits of Americans. A particular…

Q: The result of dy/dx for the following function is COS X y = 1+sin x

A: Solution-: Let, y=cos (x)1+sin (x) We want to find, dydx=?

Q: umerus bones from the same species of animal have approximately the same length-to-width ratios. It…

A:

Q: Humerus bones from the same species of animal have approximately the same length-to-width ratios. It…

A: Solution: Given information: n= 100 Sample size  x= 5.6 Sample mean s= 0.25 Sample standard…

Q: A time study of an assembly operation yielded the following observed times for one element of the…

A:

Q: A simple random sample of size n is drawn. The sample​ mean, x​, is found to be 19.1​, and the…

A: Given that  Sample mean =19.1 Standard deviation =4.1

Q: Identify which of the variables is most likely to be the explanatory variable, and which is most…

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

Q: The table shows the magnitudes of the earthquakes that have occurred in the past 10 years. Use the…

A: The table shows the magnitudes of the earthquakes.

Q: ** Let os be the median of a symmetric distribution that is of the contuous type. To test, with a =…

A: We have given data are 1.5,-0.5,1.6,0.4,2.3,-0.8,3.2,0.9,2.9,0.3,1.8,-0.1, 1.2,2.5,0.6,-0.7,1.9,1.3

Q: Suppose that the probability of a convicted shoplifter repeating the crime within 5 years is .30. Of…

A: Given n=200 P=0.3 X&gt;=68=?

Q: Find the mean of this sample [Select] Find the standard deviation of this sample [Select] Give the…

A: here as per guidelines i have calculated 3 subparts  here given ,  xi : 58 ,32 , 41 , 47, 56 , 80…

Q: 5. Descriptive statistics for the closing stock prices of two companies for several trading periods…

A: Given that: Microsoft, Inc Mean 4.04 Kurtosis -1.1 Standard error 0.11 Skewness 0.04 Median…

Q: It is known that the distribution of individual passengers checked-in baggage weight has a mean of…

A:

Q: Many people believe that criminals who plead guilty tend to get lighter sentences than those who are…

A: The question is about categorical data analysis Given :

Q: Explanation it correctly Q)The average life (mean) of a manufacturer's blender is 10 years, with a…

A: Given Population mean μ=10, population standard deviations σ=3, n=sample size=9  P(x̄&gt;9.5)=?…

Q: Real-life Problem Apply the concept of Sampling distribution of the sampling means, present your…

A:

Q: ** Let os be the median of a symmetric distribution that is of the contuous type. To test, with a =…

A:

Q: Given 50 multiple-choice items in their final test in Mathematics, the scores of 30 students are the…

A: Given  30 obs. of data set is 23 38 28 46 22 20 18 34 36 35 45 48 16 22 27 25 29 31 30 25 44…

Q: Based on a survey, assume that 46% of consumers are comfortable having drones deliver their…

A: p  denotes sample proportion and q=1-p