Total 874 432 245 1551 Given that a randomly selected respondent thought it was a bad idea, what is the probability that this person was a female?

Q: If n=31, ¯xx¯(x-bar)=30, and s=7, find the margin of error at a 90% confidence level Give your answe...

A: Given,n=31x¯=30s=7degrees of freedom (df)=n-1df=31-1=30α=1-0.90=0.1α2=0.05t0.05(30)=1.697       (fro...

Q: Ten students in a Mathematics contest are competing for first, second and third prize. How many ways...

A:

Q: The weights of a calf taken at weekly intervals are given below. Fit a straight line using the metho...

A:

Q: A survey was conducted among a random sample of 196 experienced meditators.  Their sample mean lengt...

A: We have given that Sample size n =196 Sample mean =12.5 Standard deviation =11.2

Q: Let independent positive random variables X1, X2,..., X, be modelled by a gamma distribution with kn...

A: We are given the following distribution from a random sample X1,X2,....Xn from the following distrib...

Q: In ANOVA variables are referred to as treatments. * Your answer ANOVA is the preferred method for fi...

A: Given that  We have to find True and False  In ANOVA variables are referred to as treatments.       ...

Q: Calculate the correlation coefficient from the following results N-10, ΣX- 350/ Σ Υ- 310 Σ (X-35= 16...

A:

Q: 16. If 12P4 = 11,880 , then what is 12C4 ? *     495 330 715 220

A: GivenP412=11880

Q: The owner of a gasoline station wants to study gasoline purchasing habits by motorists at his statio...

A: We have given that  Sample size n =55 Sample mean = 11  Standard deviation =3.3  

Q: school studen field (HEF)" without touching patients. The student believes that a practitioner with ...

A: To test whether the practitioners with less years of experience predicts HEF correctly or not.

Q: Consider the two sample t-test with equal variances and the paired t-test. These tests are equivale...

A: Two sample t-tests: The two-sample t-test is used when the two samples are statistically independent...

Q: (f) Op(1)Op(1) = Op(1)

A: f. Consider, Un=Op(1)   and Xn=op(1)Then UnXn=Op(1)  Since Op(1) is equivalent to convergence in pro...

Q: In a business, the Chief Executive Officer wants to know if his workers are for or against mandatory...

A: In a business, the Chief Executive Officer wants to know if his workers are for or against mandatory...

Q: Find the probability that the reading is less than -2.08

A: We have given that readings on thermometers are normally distributed with a mean 0 and standard devi...

Q: Find the ?2 critical values using the information in the table. set ? df a) 0.05 4 b) 0.02...

A:

Q: idence level=95% idence level= 99%

A: We have to find sample size required for given ci.

Q: Calculate the three-monthly moving averages from the following data : Jan. Feb. March April May June...

A:

Q: Q6. In the following diagram: Họ: µ = 4 ; H1: µ = 1. (X) Ho Rejection region Non-rejection region Ex...

A: Given null and alternate hypothesis asH0: μ=4H1:μ=1 The rejection region in the given graph is regio...

Q: Calculate Pearson's coefficient of correlation from the following data. Take 65 and 70 as the assume...

A:

Q: Find out the median of the following items 10, 8,.5, 13, 4, 9, 7

A: Given:  The following observations are given 10,8,5,13,4,9,7

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores ar...

A:

Q: Assume that adults have IQ scores that are normally distributed with a mean of u = 100 and a standar...

A: Let X be the random variable from normal distribution with mean (μ) = 100 and standard deviation (σ)...

Q: on 9.32, Following is the distribution of marks obtained by 50 students in Mercantile Law. Calculate...

A:

Q: One card is drawn at random from a well shulfied pack of 52 cards. What is the probability that it w...

A:

Q: Use the table to find the probabilities for a juice chosen from the shelf at random. A. P(less than ...

A: Note: According to Bartleby expert guidelines, we can answer only first question with their three su...

Q: . It is a selection of objects from a set. *   Arrangement Permutation Combination Selection

A: We have given that the statement about to the selection of objects from a data set. We need to find ...

Q: You intend to estimate a population mean with a confidence interval. You believe the population to h...

A: Given that we intend to estimate a population mean with a confidence interval. And the population ha...

Q: Use MS Excel to make the scatterplots and to verify the determined least-squares line using its Tren...

A: Scatter plot are used to visualize the data set to understand the correlation between the two variab...

Q: A random variable X follows normal distribution with the mean 5 and standard deviation 1. Find the p...

A: We have given, X be the random variable from normal distribution with mean (μ) = 5 and standard devi...

Q: Determine whether the correlation coefficlent is an appropriate summary for the scatterplot and expl...

A: Given : The scatter plot : A scatter plot is a chart type that is normally used to observe and visua...

Q: na survey of 3191 adults aged 57 through 85 years, it was found that 80.5% of them used at least one...

A: We have given that  Sample size n =3191 Sample proportion p^=80.5%=0.805  

Q: .9938 (d) P(0 < z < 1.5)

A: We have given that.   X~N( μ , ?^2 )   μ=0 , ? =1   , for standard normal.    Z-score =( x - μ )/?  

Q: -Discuss in detail about "MARKOV'S PROCESS"

A: Markov process  A Markov chain or Markov process is a stochastic model describing a sequence of poss...

Q: Assume that you have a sample of n1 = 7, with the sample mean XBar X1 = 44, and a sample standard de...

A: From the provided information,

Q: Assume that y is a function of three variables: X1, X2, and x3. If you run a regression of y on the ...

A: Given information: The information about multiple linear regression is given.

Q: Suppose that z,., Zn are fixed constants and that for i = 1,..,n, X, is normally distributed with me...

A: “Since you have posted a question with multiple subparts, we will solve the main question for you. T...

Q: Calculate the test-statistic, t with the following information. n1=45n1=45, ¯x1=2.11x¯1=2.11, s1=0.3...

A:

Q: Paasche's index for 2005 is : (A) 48.12 (B) 49.12 (C) 47.12 (D) 46.12.

A: It is given that ∑p1q1 = 450.1 ∑p0q1 = 916.3

Q: 1. Derive the least squares estimator of Bo for the regression model Y; = Bo + Ei.

A: Given that, 1.  Regression model:-  Yi = βo + εi We need to derive the least squares estimator of βo...

Q: List the elements of An B =

A: Here elements in (A and B)  are  common elements of A and B that is elements that appears in both se...

Q: Compute the least-squares regression equation for the given data set. Use a TI-84 calculator. Round ...

A: X :- 43, 37, 15, 19, 24, 37, 18 Y :- 72, 67, 25, 29, 42, 65, 32 Then,  We will find the regression e...

Q: Twenty boats make 6 transatlantic trips each per year, and 10 boats make 4 trips per year. What is t...

A:

Q: Find out the median of the following items : 10, 8,.5, 13, 4, 9, 7

A: Median: It is the middle most value of the data set that divides the whole data into two equal parts...

Q: In the construction of a certain cost of living Index Number the following group index numbers were ...

A:

Q: According to a 2009 Reader's Digest article, people throw away about 13% of what they buy at the gro...

A: Given: p^ = 0.13 n = 116  

Q: A study of working actors looked at age and gender. One sample of 50 male actors had a mean age of 2...

A: Given: n1=50, n2=50 x¯1=26x¯2=36s1=5s2=3

Q: a. Calculate the sample covariance. X Y -3 -9 13 9 5 12 b. Calculate the sample correlation. c. Desc...

A: Since you have asked multiple questions, we will solve first three subparts for you. To get remainin...

Q: (X1, X2,..., Xn) are independent and identically distributed random variables with density function ...

A:

Q: You wish to test the following claim (HaHa) at a significance level of α=0.005α=0.005.       Ho:μ=85...

A: Givenα=0.005H0:μ=85.9Ha:μ&gt;85.9n=6M=89.6SD = 9.1

Q: We are interested in estimating the proportion of graduates at a mid-sized university who found a jo...

A: We have given that  Sample size n =430 Favorable cases x =340 95% confidence interval.