A number cube is rolled and a coin is tossed. The number cube and the coin are fair. What is the probability that the number rolled is greater than 3 and the coin toss is tails?   Write your answer as a fraction in simplest form.

Q: Use the t-distribution and the given sample results to complete the test of the given hypotheses.…

A:

Q: here are 5 new books and 9 used books on a shelf.   (a) What is the ratio of new books to all…

A: Ratio is a type of continuous scale measure. It has two parts, they are numerator and denominator.…

Q: In a metal fabrication process, metal rods are produced that have an average length of 20.5meters…

A: Given Information: Mean μ=20.5 Standard deviation σ=2.3 Sample size n=30

Q: An article discusses the different roles taken by lionesses as they attack and capture prey. The…

A: Given that:   Role Position Initiate Chase Participate in Chase Center 26 46 Wing 67 43…

Q: Example 15. The mean of wages in factory A of 100 workers is 720 per week. The mean wages of 30…

A:

Q: tionnaire and administered it to a group of city dwellers and a group of country dwellers. Each city…

A: Rural Men Urban Men 22 25 19 23 18 20 17 18 15 12 10 9 6 4 4 3

Q: A light bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least…

A: Given: sample size(n)=29 sample mean(x¯)=756population standard deviation(σ)=64Population…

Q: The data was obtained in a study on the number of absences in the day and the final grades of seven…

A: Given data: Student Number of Absences Final Grade A 6 82 B 2 86 C 15 43 D 9 74 E 12 58…

Q: Engineers want to design seats in commercial aircraft so that they are wide enough to fit 90​% of…

A: The mean is 14.1 and the standard deviation is 0.9.

Q: To investigate the fluid mechanics of swimming, twenty swimmers each swam a specified distance in a…

A: From the provided information, Sample size (n) = 20 Level of significance (α) = 0.01

Q: Lionel has just gone grocery shopping. The mean cost for each item in his bag was $3.19. He bought a…

A: Given info: The mean cost for each item in his bag was $3.19.

Q: Credit Score 0-15 15-30 30-45 45-60 60-75 75-90 90+ Number of Applicants 70 45 25 30 23 10 0 Compute…

A: Given that  Frequency distribution table  Class Frequency 0 - 15 70 15 - 30 45 30 - 45 25…

Q: Assume that the population of a store customers is infinite. For this population, the proportion of…

A: The question is about sampling dist. of sample prop. Given : Prop. of customers who buy service plan…

Q: 12.41 Race and Ethnicity. The U.S. Census Bureau allows each person to choo from a long list of…

A: Hello! As you have posted 2 different questions (12.41 and 12.42/43/44), we are answering the first…

Q: Based on the data shown below, calculate the correlation coefficient (to three decimal places) x y…

A: The sample size is n = 6.

Q: Please give two types of sampling that causes bias. Give an example of each

A: Sampling : It is the statistical method which is used to take sample from population in a different…

Q: A genetic experiment with peas resulted in one sample of offspring that consisted of 448 green peas…

A: Givensample size(n)=448x=169p^=xn=169448≅0.377confidence level=95%

Q: Find the total of the areas under the standard normal curve to the left of z1 and to the right of…

A: Here, z1=−1.78 and z2 = 1.78.

Q: Find the equation of the regression line for the given data. Then construct a scatter plot of Then…

A: Given: x y 150 430 170 480 130 320 130 380 80 250 190 510

Q: Confounding occurs when” A. the confounding variable is related to none of the other variables. B.…

A: Confounding: When the primary exposure of interest is mixed up with another factor that is linked to…

Q: The drug fentanyl, and many of its derivatives, have become a major concern due to their ease of…

A: Given : Sample Size (n) = 5 Sample mean of lab's method (X¯) = 36.4 ng/mL Sample SD (S) = 0.7 ng/mL…

Q: What does the result​ suggest?     A. The result suggests the event did not occur.   B. The result…

A: From given data: Mean μ=268, standard deviation σ=15

Q: A statistics teacher wants to see if there is any difference in the abilities of students enrolled…

A: When the population variances are assumed to be equal, the confidence interval formula for the…

Q: You are conducting a multinomial Goodness of Fit hypothesis test for the claim that the 4 categories…

A: The claimed proportions for 4 categories are given as pA = 0.1; pB = 0.25; pC = 0.25; pD = 0.4.

Q: A box contains 3 plain pencils and 1 pen. A second box contains 9 color pencils and 3 crayons.…

A: Given A box contains 3 plain pencils and 1 pen. A second box contains 9 color pencils and 3 crayons.

Q: Problem 1) A statistical process control monitoring system samples the inside diameter of ball…

A: Given data is

Q: You determined there was a positive correlation between the number of study hours a week a student…

A: Given regression equation isy=2.079x+41If x=14y=?

Q: Tire wear: An automobile manufacturer wants to compare the lifetimes of two brands of tires. She…

A: From the provided information, Sample size (n) = 7 Level of significance (α) = 0.01 The difference…

Q: Hi, Could you please help me understand why we are looking at 0.975 for 95%? Shouldn't 0.975 be for…

A: The z score is used to determine the probability of the normal distribution. It is calculated by the…

Q: A statistics teacher predicts that the distribution of grades on the final exam will be 25% A's, 30%…

A: Given that Grades    Frequency A                   7 B                    7 C                   5 D.…

Q: Q6. For the following set of data from five participants showing Hours of Sleep and Results in a…

A: Given data: Hours of sleep Dexterity 7 8 8 8 9 9 10 10 10 15

Q: The following table shows the systolic blood pressure of 5 women and 5 men.   Women 110 120 95…

A: As per our guidelines we are supposed to answer only 3 sub-parts of any questions so i am solving…

Q: The BLS uses sampling for its National Compensation Survey to report employment costs. In its second…

A: Ans : STRATIFIED  sampling  (c)

Q: In a reality program show, it has been studied that Mawi’s winning votes are according to a Poisson…

A: Given that in a reality program show, Mawi’s and Siti's winning votes follows Poisson distribution…

Q: ou intend to conduct a goodness-of-fit test for a multinomial distribution with 4 categories. You…

A: You intend to conduct a goodness-of-fit test for a multinomial distribution with 4 categories. You…

Q: Calculate the standardized test statistic. The standardized test statistic is -3.04. (Round to two…

A: It is given that  μ = 30 x̄ = 28.9 σ = 3.13 n = 75 α = 0.04

Q: ative hypothesis. You must use statistical notation to expre

A: Hypothesis Testing: In many instances, a business researcher wants to test the differences in the…

Q: An article appeared in an Australian newspaper. It described a study of academic performance and…

A:

Q: how many water specimens are required in the sample

A: It is given that  Population standard deviation, σ = 3.2 Margin of error, E = 2 Confidence interval…

Q: Twenty years ago 51% of parents of children in high school felt it was a serious problem that high…

A: Given Information: Twenty years ago, 51% of parents of children in high school felt it was a problem…

Q: The mean age when smokers first start is 13 years old with a population standard deviation of 2…

A: We have given that Population mean (µ) = 13Standard deviations (σ) = 2Sample size (n) = 34Sample…

Q: A large university is interested in learning about the average time it takes students to drive to…

A: From given data : n=238 The goal was to determine if the average travel time of all the university's…

Q: If n=30, ¯xx¯(x-bar)=49, and s=4, find the margin of error at a 99% confidence level Give your…

A: Given,n=30x¯=49s=4degrees of freedom(df)=n-1df=30-1=29α=1-0.99=0.01α2=0.005t0.005(29)=2.756…

Q: Suppose a population has a mean weight of μ = 79.676 kg  and a standard deviation of σ=22.4943. For…

A: The mean is 79.676 and the standard deviation is 22.4943.

Q: A random sample of 83 eighth grade students' scores on a national mathematics assessment test has a…

A:

Q: Find the equation of the regression line for the given data. Then construct a scatter plot of the…

A: Procedure to conduct Regression analysis using Excel: Enter the data in an excel sheet. Go to Data…

Q: An industrial plant wants to determine which of two types of fuel, electric or gas, is more cost…

A: The following information has been given: n1=14                       n2=12x¯1=55.06…

Q: A recent study focused on the number of times men and women send a Twitter message in a day. The…

A: Solution: Given information: n1= 25 Sample size of men n2= 30 Sample size of women x1= 23 Sample…

Q: Hi! I just need Part #4 and #5. The following table shows the systolic blood pressure of 5 women…

A: Given that The following table shows the systolic blood pressure of 5 women and 5 men.     Women…

Q: Credit Score 0-15 15-30 Number of Applicants 70 45 30-45 45-60 60-75 75-90 90+ 25 30 23 10 0 Perform…

A: The null and Alternative hypothesis are:- Ho : The observed credit scores follow an Exponential…