x is a random variable with a mean ux = 70 and variance o*2 = 36 Find the arithmetic scale and variance. 1) for the variable y where y=-2x+5 2) for the variable z where z=x-70/6

Q: 4. In a random sample of 75 college students, 16 are found to have cars on campus. Test the…

A: Given that  X=16 , n=75 , p=0.4 Note: According to bartleby experts question answers guidelines an…

Q: The following table shows the rate R of vehicular involvement in traffic accidents (per 100,000,000…

A: a) Given information: s s^2 R 20 400 1600 25 625 700 30 900 350 35 1225 250 40 1600…

Q: A point estimate is defined as: O A single value that is the best estimate of an unknown population…

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

Q: Find the probability of each event, assuming that the coins are distinguishable and fair and that…

A: Given information: Three distinguishable and fair coins are tossed. Total outcomes is 2^3=8 (HHH,…

Q: Consider the following simultaneous equations model. Assume that x is exogenous. yi = Bx + e Y2 =…

A:

Q: How large a sample should be selected to provide a 95% confidence interval with a margin of error of…

A:

Q: The number of initial public offerings of stock issued in a 10-year period and the total proceeds of…

A: For the given data Find Coefficient of determination =?? Standard error of estimate =?

Q: hypothesis H1:σ2≠7.6H1:σ2≠7.6 at a significance of α=0.10α=0.10. What is the value of the test…

A:

Q: The following logit model from J.S Cramer on the household budget survey 980 was based on a sample…

A: Null Hypothesis: H0: The car ownership is not significantly estimated by the income. Alternative…

Q: The following data are obtained in oxidation of pesticides present in wastewater by a mixed culture…

A:

Q: without school-aged children that would support starting the school year a week earlier. The P-value…

A: It is given that P-value = 0.000034 Level of significance = 0.05

Q: Peter plans to invest $25,000 in a mutual fund whose annual returns are normall distributed with a…

A: Given Information: Mean μ=6.2% Standard deviation σ=3.18%

Q: which one should it recommend? a. 0.5, 0.5, movie 1. b. 0.75, 0.5, movie 1. c. 0.5, 1, movie 2.…

A: We have given that Movie 1's quality is uniformly distributed from 0 to 1. Movie 2's quality is…

Q: bens greeting customers at a music store.of the first 20 people he sees enter the store ,13 are…

A: The total number of people in the store is 20.

Q: Suppose that a random sample of 10 adult U.S. males has a mean height of 69 inches with a standard…

A:

Q: When calculating the one-sample z-test, the numerator of the equation includes:

A: When calculating the one-sample z-test, the numerator of the equation includes:

Q: defective. a) If 10% of all such bulbs are defective, what’s the probability that exactly 8 out of…

A: Given that  Number of trials n=100 Success of probability p=0.10 X~binomial (n ,p) nCx=n!/x!(n-x)!…

Q: See attached. Calculate the following. Make a conclusion for each result. - Q3 - D9 - P95

A:

Q: (OTHER SOLUTION CONCEPTS) Consider the 4x3 game depicted below. A f1,2 1,2 0,31 B 4,0 1,3 0,2 C 3,1…

A: Given 4x3 game depicted belowABCDxyz1,21,20,34,01,30,23,12,11,20,20,12,4

Q: The two stage least squares estimator is less efficient than the ordinary least squares estimator…

A: Given: The two stage least squares estimator is less efficient than the ordinary least squares…

Q: In bacterial counts with a haemacytometer, the number of bacteria per quadrat has a Pois- son…

A: Solution: 7. From the given information,

Q: 7. From the National Educators Survey (N= 450), we learn that the correlation between number of…

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

Q: Suppose the coffee industry claimed that the average adult drinks 1.7 cups of coffee per day. To…

A: Given Standard deviations=0.5 n=40

Q: What is your current internet speed? 100 responses 1-5mb 26% 6-15m 16-25r 11% 26-50r 50-100 100+m 8%

A: Given: Class Frequency 1-5 8 6-15 11 16-25 39 26-50 26 50-100 11 100+ 5 Total 100

Q: If there is a positive correlation between X and Y then in the regression equation, Y = bX + a,…

A: Solution-: If there is a positive correlation between x and Y then in the regression equation,…

Q: Population 2 Sample Population 1 Sample (Observation 1) Pair (Observation 2) 1 1 1 8 4 11 9. 64245E…

A: A sample of 6 pair observation are given below Pair Observation 1 Observation 2 1 6 1 2 4 1…

Q: You want to test whether or not the following sample of 30 observations follows a normal…

A: From the given information, the number of observations in the sample is 30.

Q: A hypothesis will be used to test that a population mean equals 5 against the alternative that the…

A:

Q: Example 4: A baker for a large supermarket has received a total of 185 bags of flour from different…

A:

Q: Hubert paid a total of $3,250 for 250 shares of stock. He sold the stock for $11.70 per share and…

A: The profit is the amount which a dealer gains in a deal. In that case, the amount spent is smaller…

Q: Please use excel/word to draw, Using a hypothetical scatterplot of data for a regression model with…

A: Scatterplot is used to represent the relation between two variables.

Q: Assume the random variable X has a binomial distribution with the given probability of obtaining a…

A: given data n = 5 p = 0.6 X ~ Bin ( 5, 0.6) P(X=r) = nCr*pr(1-p)n-r

Q: In solving for the confidence interval under T-Distribution, one-tailed distribution is observed.…

A: We have given that In solving for the confidence interval under T-Distribution, one-tailed…

Q: Situation For the grouped data tabulated below Class Frequency Interval 118-126 127-135 136-144…

A:

Q: The table below gives the number of weeks of gestation and the birth weight (in pounds) for a sample…

A: Data given X: 36,37,38,39,40 Y: 4.9,5.3,5.8,6.2,6.7

Q: 2. A large firm collects sample data on the lengths of telephone calls (in minutes) made by…

A: A large firm collects sample data of sales division and customer service division Sales Division;…

Q: A teacher has a large container of blue, red, and green beads. She reports to the students that the…

A: Given that  H0: p=0.30   Vs   H1: p<0.30 P-value=0.045 ,?=  0.05

Q: Below is a correlation matrix with three variables, specific to women who are 60 and younger.…

A: From the given table, r(number of children, education)=-0.021 r(number of children, income)=0.050…

Q: 4. х%3D 26 5. х%3 18 PHILI

A: Let X be the random variable from normal distribution with mean (μ) = 17, standard deviation (σ) = 4…

Q: A random sample of 18 health maintenance organizations (HMOS) was selected. For each HMO, the…

A: 54,45,53,47,31,32,38,39,36,34,33,42,49,35,49,38,50,35 Now we will find sample mean standard…

Q: Using a pooled sample estimator, o , assumes the two populations have O A. different means. O B. the…

A:

Q: Solve appropriately. Avoid erasures. Scenario (Procedures): 1. The amount of the sample weights (in…

A: Given: Mean(μ)=52standard deviation(σ)=8

Q: 2) The following data represent the difference in scores between the winning and losing teams in a…

A: The question is based on frequency dist. of grouped data. Given : Point Difference No. of Bowl…

Q: Show how the difference in mean estimands can be decomposed into the average treatment effect (ATE).…

A: Treatment effect: The treatment effect for ith unit is the difference between its two potential…

Q: A liquor wholesaler is interested in assessing the effect of the price of a premium scotch whiskey…

A:

Q: The table below shows the weights and heights of the 15 students in Mr. Murray's statistics class.…

A: The scatter plot can be obtained using EXCEL software. Enter the values of height in column A and…

Q: Use the t-distribution table to find the critical value(s) for the indicated alternative hypotheses,…

A: For the given data  Find critical values = ?

Q: Explain why the sampling method given to the following situation is appropriate for it. A brand…

A: Convenience sampling means taking the sample from the part of the population which is…

Q: A) Below is the data set on the number of push-ups performed by a group of students on the first day…

A: The given data is, 5 9 0 30 25 15 19 17 18 18 10 15 18 12 18 5…

Q: 3. A course is designed to increase reading speed and comprehension. To evaluate the effectiveness…

A: For the given data Perform paired t test