Use the file on Blackboard called "Excel Databases.xlsx". Locate the Manufacturer tab. The goal is to test to determine if there is a significant difference between mean Value Added by the manufacturer and the mean Cost of Materials in manufacturing assuming a 1% level of significance. Use Excel to perform the F-test for Equality of Variances at the 1% significance level. Which variable will be Group 1? What can you conclude from running the F-test? O a. Value Added by Manufacturer is Group 1. The F-test concludes that the population variances are unequal. O b. Cost of Materials is Group 1. The F-test concludes that the population variances are equal. OC. Value Added by Manufacturer is Group 1. The F-test concludes that the population variances are equal. O d. Cost of Materials is Group 1. The F-test concludes that the population variances are unequal.

Q: Use the given categorical data to construct the relative frequency distribution.   Natural births ra...

A: Relative frequency :- Relative frequency = Class frequency Sum of all frequencies   

Q: Census data are often used to obtain probability distributions for various random variables. Census ...

A: We have given the Census data for families in a particular state with a combined income of $50,000 o...

Q: If us0.34 is the stated null hypothesis, what is the alternative hypothesis? Ομ0.34 Ομ20.34 Type you...

A:

Q: Question Eight: The length of a machined part is known to have a normal distribution with a mean of ...

A: Given :  The length of a machined part is known to have a normal distribution with mean of 100 mm an...

Q: A manufacturer of automobile transmissions uses three different processes. Management ordered a stud...

A: Solution: Given information: k= 3 groups  and each group has 10 observation. n1=10 Sample size of pr...

Q: Tire pressure monitoring systems (TPMS) warn the driver when the tire pressure of the vehicle is 26%...

A: Given that the target pressure of the car is 31 psi Tire pressure monitoring systems (TPMS) warn the...

Q: Let N=9, r=5, and n=4. Using the hypergeometric probability distribution formula, find: (Show all wo...

A:

Q: Need help with this question on bayes theorem

A: Let B– Represent budget contains error B’ – Represent Budget does not contains error E– Represent er...

Q: The maintenance manager at a trucking company wants to build a regression model to forecast the time...

A: Multiple linear regression model: A multiple linear regression model is given as y = b0 + b1x1 + b2x...

Q: What is the z-score corresponding to Q1 z =   For a standard normal distribution, determine ...

A: for the standard normal distribution the first quartile is -. 67 (using . 2514 for . 25)

Q: For each probability and percentile problem, draw the picture.A random number generator picks a numb...

A: We have to use Uniform distribution. Uniform distribution :- If X follows uniform distribution on th...

Q: Tbe following data represent the results obtained from tbe specific gravity (S.G.) test performed i...

A: Given : The following data represent the results obtained from the specific gravity (S.G.) test perf...

Q: a. Compute and interpret the sample covariance for the above data. b. Compute and interpret the samp...

A: Price (X) Demand (Y) (x-xbar) (x-xbar)^2 (y-ybar) (y-ybar)^2 (x-xbar)*(y-ybar) 1 47 -5 25 14 196 -...

Q: A truck has a load of gravel in a rectangular box.  The box is 6 feet, by 4 feet at the base, and it...

A: Given, L=6 W=4 H=3   To find volume of rectangle L*B*H  = 6*4*3  = 72 cu-ft  

Q: If we find that there is a linear correlation between the concentration carbon dioxide in our atmosp...

A: If we find that there is a linear correlation between the concentration of carbon dioxide in our atm...

Q: The following results are for two independent samples taken from the two populations. Sample 1 Sa...

A: Sample 1 Sample 2 n1 = 40 n2 = 50 x-bar1 = 25.5 x-bar2 = 22.8 σ1 = 5.2 σ2 = 6.0

Q: You are conducting a study to see if the proportion of voters who prefer the Dernocratic candidate i...

A: Given : You are conducting a study to see if the proportion of voters who prefer the Democratic Can...

Q: Question Seven: A manufacturing process is estimated to produce 20% nonconforming items. If a random...

A: Hi! Thank you for the question As per the honour code, We’ll answer the first question since the exa...

Q: Please help me fast so that I will give Upvote.

A:

Q: Determine whether the claim stated below represents the null hypothesis or the alternative hypothesi...

A: Given information Claim:- at least 87​% of people had at least one health care visit in the past yea...

Q: A 10 year study conducted by the American Heart Association provided data on how age, blood pressure...

A: Hello thanks for your question. Since you have posted a question with multiple sub-parts, we will so...

Q: How is the goal of descriptive statistics served by computing a measure of central tendency?

A: It is an important part of statistics . It is widely used .

Q: Read the following prompt and complete 1.a, 1.b, and 1.c

A: Option b) is correct.   The estimate is given by p^ =0.458 + 0.5282 = 0.52

Q: Twenty-three college graduates are applying for internships at a Wall Street financial institution. ...

A: The total number of college graduates is 23.

Q: Find the probabilities below and sketch the accompanying area. a) P(Z>2.34) b) P(Z2-1.61)

A:

Q: The histogram to the right represents the weights (in pounds) of members of a certain high-school de...

A: Given that,The histogram represents the weights of members of a certain high school debate team.

Q: 1)Sometimes sustained shifts are presented and its when     the sampling plan is carried over 8 ...

A:

Q: A normal distribution has a mean of 60 and a standard deviation of 16. For the following score, indi...

A: It is given that, A normal distribution has a mean of 60 and a standard deviation of 16 i.e. X~N(60,...

Q: The median score for the final exam in a COMM 215 class was 70 and 21.5% of the students received a ...

A: Mean = Median (Normal distribution property) -------------------------- Z = x-μσ~N(0,1)

Q: Suppose the True mudel is Ti =B, +BzXzi te varia ble to Ise mudel and estimate T= Bi tBeXzi t B3X3; ...

A: Given  True model  Yi = B 1+ B 2X 2i + e I We are adding an irrelevant variable X3 to the model.    ...

Q: A medium sized company has 15 employees who hold managerial positions. Of them, 4 are minorities and...

A: The density function of Hyper geometric distribution is,

Q: Find the critical​ value(s) and rejection​ region(s) for the indicated​ t-test, level of significanc...

A:

Q: 27 QUESTION PROBLEM SET 3 PART 1 You decide to invest in stock of a particular type of company and s...

A: Part 1) a) The percentile of the 78th ranked company is =78345×100=22.6≈23 Since it is ranked in 23t...

Q: As a quality-control inspector for toy trucks, you have observed that 6% of the time, the wooden whe...

A: n = 6 , p = 0.06  Given,  P(X = 0 ) = ?

Q: I have no idea how to proceed on #24 question. Please help, thanks.

A:

Q: 13.24 Sleep. The distribution of hours of sleep per school night, among high school seniors, is foun...

A: Empirical rule ( 68-95-99.7 rule ) :  According to empirical rule ,  68% of data falls within the fi...

Q: Q12: The random variable X has the following probability distribution x 0 1 2 P(x) 0...

A: The random variable X has the following probability distribution is, x 0 1 2 P(x) 0....

Q: The following table is a probability distribution of the amount of time required to evacuate the low...

A:

Q: Jane measures the age of death of 4 strains of mice using 40 male mice per strain, with 20 mice from...

A: Given information: Given that Jane measures he age of death of 4 strains of mice using 40 male mice ...

Q: Which measure of central tendency should be used if the data are not skewed, does not contain any ou...

A: Which measure of central tendency should be used if the data are not skewed, does not contain any ou...

Q: Use the following table to determine whether or not there is a significant difference between the av...

A: Manufacturer 1 Manufacturer 2 n1 = 81 n2 = 64 x¯1 =15.80 x¯2 = 15.00 σ1 = 3.00 σ2 = 2....

Q: Suppose 60 percent of the customers at Pizza Palooza order a square pizza, 80 percent order a soft d...

A: Given Data: Let X represent the event of ordering a square pizza Let S represent the event of orderi...

Q: The result for a Pearson’s r between students’ anxiety and their achievement was, r(90) = - .75, p =...

A: The range of the correlation coefficient lies between -1 to 1, inclusive. For a perfect correlation,...

Q: Corporate training can involve the use of standardized tests to determine how well their employees r...

A: Given that, Mean = 82 Standard deviation = 3

Q: In one region, the September energy consumption mean of 1000 kWh and a standard deviation of 225 kWh...

A: we want to find sampling distribution  Given sample size n= 50

Q: The credit card payment, PaymentAmt, made last month by 100 credit card holders was obtained and pro...

A: let X = the credit card payment, PaymentAmt, made by credit card holders. Mean = 158.5 SD = 65.59

Q: 13.34 Women's heights. The heights of adult women are approximately Normal with mean 69.2 inches and...

A: Given that The heights of adult women are approximately normal. Mean (μ) = 69.2 inches Standard devi...

Q: How do I find the probabilty

A: X 0 1 2 3 4 5 P(X) 0.1 0.4 0.3 0.1 0.05 0.05

Q: The annual rainfall in a certain region is modeled using the normal distribution shown below.

A:

Q: 16

A:

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.