1. What is the population variance? 2. What is the sampling distribution variance?

Q: What is the standard deviation of this probability distribution

A:

Q: Reject H0 if t > -1.6604.       Reject H0 if t > -1.9842.       Reject H0 if t > 1.9842 or Z < -1.98...

A:

Q: Y 1 2 4 8. 16 |P(y) 0.05 0.10 0.35 0.40 0.10 Construct the cumulative distribution function.

A:

Q: 2. What features Bad Presentation V Good Presentation of the 'Good Minimum Wage Minimum Wage 2$ 1960...

A: Graphical representation is the visual representation of the numerical dataset. 

Q: An event E has a probability p = p(E) = 0.6 in some sample space. Suppose the experiment that yields...

A: We use binomial distribution here.  P(X=r) = nCr*pr*(1-p)(n-r)

Q: particular professor has noticed that the number of people, P, who complain about his attitude is de...

A: Here given data for, Number of people who complaint about his attitude if he drinks n number of cups...

Q: Example 18-4. Let X - N(u, 4), µ unknown. To test Ho : u = -1 against H1 : µ = 1, based on a sample ...

A:

Q: In 2014 the NY Yankees had a team batting average of u-245 (actually .245 but we'll multiply by f000...

A:

Q: Consider a sample set as S = {2,4,6,8,10,12,14,16,18,20}. Event A is the multiples of 4, while event...

A:

Q: An urn contains 8 red and 12 green balls. Two balls are drawn with replacement (i.e. the draws are i...

A:

Q: The data below are the height of 20 students in a class: 133 136 120 138 134 132 126 141 127 143 130...

A: For the given data Construct Bar graph , Pie graph  and Histogram

Q: A large group of students took a statistics test.               The mean score, from the scale of 10...

A:

Q: 21.7 28.1 29.6 24.5 23.7 23.3 22.1 28.1 29.1 16.7 23.4 22.1 18.3 29.2 23.4 27.5 30.2 23.3 21.9 22.7 ...

A: Here n=40 Data is given, We have to answer for mentioned questions. 

Q: 1. Consider randomly selecting a single individual and having that person test drive 3 different veh...

A:

Q: sort of financial aid. Rather than examine the records for all students, the dean randomly selects 2...

A: Given that  Favorable Cases XX = 118118 Sample Size Nn= 200200 95% confidence interval for p...

Q: 13.27 Women's heights. A random sample of female college students has a mean height of 65 inches, wh...

A:

Q: The average cost of tuition plus room and board for a small private liberal arts college is reported...

A: We have given that  Sample size n =350 Sample mean = 8745  Population standard deviation =1200

Q: This frequency histogram present the final grades of a random samp of 100 college students. 18- 15- ...

A:

Q: What is the standard deviation for a binomial distribution with p = 0.6 and n = 42? Report your answ...

A:

Q: Scenario: A medical researcher wishes to see whether there is a relationship between a person’s age,...

A: Introduction: A multiple regression model must be fitted to the data.

Q: Average speed on a freeway is  80  mph.   Among all vehicles 65% drive 8 miles above the speed limit...

A:

Q: A machine puts out 16 imperfect articles in a sample of 500. After the machine is overhauled, it put...

A:

Q: You want to know if a majority of congressmen support an upcoming bill.      The parameter is a prop...

A:

Q: Calculate the sample median, mean, variance, standard deviation, standard error, and 95% confidence ...

A: Mean is the average of all the observation in the sample. Median is the middle value which separate ...

Q: For Questions 13-16: A 6-sided die is tossed 300 times and each outcome is recorded. Results are sum...

A:

Q: 0.07 0.08 0.04 0.03 0.02 0.08 a. What is the probability that the next shirt sold is a medium, long-...

A:

Q: John has 5 boxes of pencils and have total of 500 pencil Box number 1 and 2 have a total of 260 pen...

A: Given that  John has 5 boxes of pencils and have total of 500 pencil. ( B1+B2+B3+B4+B5 )  = 500 ----...

Q: Here we investigate whether the register balance at a local retail store is better on days with a ma...

A:  Hypothesis testing : Hypothesis testing may be a kind of applied math reasoning that involves drawi...

Q: For a survey, a sample of municipalities was selected from every province in the country and include...

A:

Q: In sample 400 parts manufactured by a factory, the number of defective parts was found to be 30. The...

A:

Q: Abigail is running a fundraiser for Love Week where students can buy a rose for somebody and someone...

A: From the provided information, Sample size (n) = 380 Confidence interval is between 42.8% and 51.7%.

Q: Tyrion's actual BAC is 0.08 after having 6 beers. What is the residual?

A: Here use given regression line for prediction of BAC 

Q: 7. In a study on the effect of exercise, ten patients had the following records: Previous Weight (...

A: "Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts f...

Q: Using the regression model, which is the estimated score in quiz of a student and is the number of h...

A: The regression equation is ŷ = 50 + 10x, where ŷ defines the estimated score in quiz of a student an...

Q: Length of skateboards in a skateshop are normally distributed with a mean of 31.3 in and a standard ...

A: Assume, X be the random variable which follows normal distribution with Mean=μ and Standard deviatio...

Q: What z-score separates the most extreme 5% of the distribution from the middle 95% of the distributi...

A: here we know that 5% of the distribution from the middle 95% of the distribution. a- 1.96 is the val...

Q: The content of two urns is as given below: -Urn (U1): x red balls and (y+1) black balls Urn (U2): (y...

A:

Q: Tesearch group asked 2132 U.S. adults and 1038 college presidents to "rate the job the higher educat...

A: Comment: As per the our company guidelines we are supposed to answer only three subparts. Kindly rep...

Q: A die was tossed 60 times and the out come was as follows: Outcome 1 96 Freq 6. 15 69 8. 6. 13 If Di...

A: Solution-: We find the expected frequency of occurrence of each outcome?  

Q: data set contains the observations 3, 8, 4, 5, 3, 4, 6. A. Find the sample mean. B. Find the sampl...

A: We have given that data. 3, 8, 4, 5, 3, 4, 6. I want to find mean and sample variance  Mean = sum of...

Q: Trans-Generational Effects of Diet Can experiences of parents affect future children? New studies16 ...

A: Categorical Variables (CV) are those variables which cannot be counted or measured. Quantitative Var...

Q: A manufacturer of blades knows that 5% of his product is defective. If he sells blades in boxes of 1...

A:

Q: • Enumerate and differentiate the approaches in calculating probabilities.

A: We have to define the different approaches of calculating probabilities:   

Q: The accompanying table shows the numbers of male and female students in a certain region who receive...

A:   Degrees degree in field Outside of field Total males 199070 591105 790175   F...

Q: Examine whether there is any correlation between age and blindness on the basis of the following dat...

A: Given: Age in years No. of persons, X No. of blind person, Y 0-10 90 10 10-20 120 15 20-30 ...

Q: Sometimes the research hypothesis is considered to be Question 5 options: the exciting ...

A: Sometimes the research hypothesis is considered to be

Q: In one statistics course, students reported studying an average of 9.92 hours a week, with a standar...

A: Let X be the random variable from normal distribution with average or mean (μ) = 9.92 and standard d...

Q: 11. Thomas is studying the relationship between fitness and emotional well-being in children. One of...

A:

Q: If random samples of n = 30 are selected from a population with µ = 80 and o = 10, how much distance...

A:

Q: What is the standard devaition of the smaple data set? 83, 65, 91, 87, 84    The mean of those nu...

A: Given: data values  xi: 83, 65, 91, 87, 84  sample mean xbar=82  then to find standard deviations of...