Ronnel got the following grades for the third-grading period: 83 Chemistry Filipino English Mathematics 82 78 76 Social Science 80 Computer a. Find the mean of the five subjects. b. What grade must he get in Computer to have an average grade or me to 82?

Q: Find the term independent of x in the expansion of 3 1 - 2r

A:

Q: The amount of pollutants that are found in waterways near large cities is normally distributed with…

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

Q: independently analyze and interpret the data. Compare the improved airplane performance (average…

A: Null Hypothesis: H0: There is no significance difference between the means of airplane performance…

Q: (i) Calculate the mean and standard deviation for Class A and Class B. Show your working clearly.

A: here given sample data for class A and B

Q: The standard error for the difference between the two means is A) 9.19 B)4 C)2.0 D)3.91

A:

Q: To generate leads for new business, Gustin Investment Services offers free financial planning…

A:

Q: Two alternative machines are being compared. Machine Ma has an average effective process time of 2.2…

A: It is given that M1 has an average effective process of 2 hours  SD of M1 = 2.1 hour M2 has a…

Q: 1. Find the median of the set of values: 16, 14, 12, 19, 20, 15, 23

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

Q: We can read specific cells from excel file through the readxl package by specifying the cell range…

A: Answer is True.

Q: You may need to use the appropriate appendix table or technology to answer this question. Barron's…

A: Given  N = 40 Mean = 18.5 Standard deviation = 5

Q: Suppose a drug company designs to develop a new drug to prevent colds. The company states that the…

A: There are two independent samples which are women and men. We have to test whether the drug is…

Q: Efficient manufacturing: Efficiency experts study the processes used to manufacture items in order…

A: We have given that.Sample size (n) = 70Sample mean (x̅) = 54.2Standard deviations (σ) =…

Q: Why can't you just use the sample mean to estimate the population mean without including a margin of…

A: Why can't you just use the sample mean to estimate the population mean without including a margin of…

Q: ness of three different cattle feed supplements. He selec a random sample of 15 one-year-old heifers…

A: Given: The weights of three supplements are shown below Group A Group B Group C 500 700 500…

Q: 5. In a group of 40 people, 35% have never been abroad. Two people are selected at random without…

A: Given that  a) No, this is not a binomial experiment because probability of one person to ben abroad…

Q: In a survey, 21 people were asked how much they spent on their child's last birthday gift. The…

A: Given that, x¯=32,s=8,n=21 The degree of freedom is, df=n-1   =21-1   =20 Critical value: Using the…

Q: ase see below. Only one attempt given. Is the sugar content in kids' cereals higher than adults'…

A: Given: n(kids cereals) = 19 n(adult cereals) = 27

Q: Which would be the appropriate command in Excel to calculate the following? What is the probability…

A: The sample size n is 13.

Q: D Click here for the Excel Data File (a) Find the mean, median, and mode. (Round your answers to 2…

A: Mean: It is the sum of an observations divided by the total number of observations of the data set.…

Q: Activity 2. Direction: Using the normal curve, locate the z-value and shade the required region. 1.…

A: For the given Z score , we need to locate the value on normal curve and shade the region.

Q: If a fair, six-sided die is rolled twice, what is the probability it will land on 1 and then 6?…

A:

Q: Baseball Team Batting Averages Team batting averages for major league baseball in a certain year are…

A: For the given data Find Variance =? S.D =?

Q: 2. The following are the IQ test scores of 31 randomly selected business students in a certain…

A: The sample mean and sample standard deviation are, The degree of freedom is, df=n-1   =31-1   =30

Q: Find the 7th _term in the expansion of : 5 2x 4x

A:

Q: Consider a linear regression model where y represents the response variable and x and d are the…

A: Given regression equation is  ŷ= 5.20 + 1.60x + 1.40d + 0.20xd.

Q: (a) What percent of all capsules have a concentration of the active ingredient higher than 10.4…

A:

Q: pose that Y1,Y2 are independent identically distributed (iid) random variables form a random sample…

A: y1 0.04304550 y2 0.50263474 f(x)=θe-θx ; x≥0 1) Read the data into R x<- c(0.04304550,…

Q: Font Paragraph Styles Q. 1 The results of the evaluation of a screening test for breast cancer among…

A: Total :  64810(177 + 64633) 177 :   Breast cancer 64633: no cancer

Q: Find the term independent of x (i.e. whenx in the following expansion : 1, i.e x") and its…

A:

Q: he data below are the frequency of cremation burials found in 17 archaeological sites. a. Obtain…

A:

Q: 4. Entry to a certain University is determined by a national test. The scores on this test are…

A: Given: μ = 500 σ = 100

Q: American businesses provide?" The distribution of responses to this question was as follows:…

A:

Q: The player played a total of 670 games in 10 seasons and averaged 9.23 assists in these games. If…

A: The probability mass function of the Poisson distribution is given as follows:

Q: A simple rule of thumb for comparing a project's risk and return by Joe Hardman is : If the expected…

A:

Q: The following three independent random samples are obtained from three normally distributed…

A: There are 3 independent samples which are Internship, Co-op and Work Study. We have to test whether…

Q: A survey of 22552255 randomly selected US adults found that 51%51% said they know all or most of…

A:

Q: tamin Din 88 chadren whe live in a northem state was measured, and the sampte proportion who were…

A: Since we answer only up to three sub-parts, we'll be answering the first three sub parts. Please…

Q: Question 6 0 A raft is floating on the ocean. Its distance compared to the height of the dock is…

A:

Q: You are going to choose a number randomly from the set {1, 2, 3, ... 23, 24}. What is the…

A: Let us define some events A : a number is divisible by 4 B : a number is multiple of 5 The possible…

Q: Which would be the appropriate command in Excel to calculate the following? What is the probability…

A: The average is 4.

Q: Consider the following sample regressions for the linear and the logarithmic models.     Linear…

A: From the given models, The R^2 value for logarithmic model is higher and the standard error for the…

Q: Show that the correlation coefficient between Wj and W2, pw,,W2, is such that |pyj.Y2| = lew1,w2l- a

A:

Q: You may need to use the appropriate appendix table or technology to answer this question. A…

A: Givenpopulation proportion(p)=0.60sample size(n)=100

Q: The Anthropology Department at UC Berkeley is measuring student heights. 100 male students are…

A: Here is given that, mean is 180 and standard deviation is 5. Sample number is 100. We will use one…

Q: The support allows us to look at categorical data as a quantitative value. True O False Discrete…

A: Quantitative data:  Discrete random variable: A random variable is said to be discrete if its value…

Q: A psychologist would like to examine the effects of caffeine consumption on the activity level of…

A: The F - score formula in the ANOVA test is given by            F-score=SSbetweenK-1SSerrorN-K Where,…

Q: wo intervals are given, A and B, for the same value of the explanatory variable. A: 10 to 18 ; B: 5…

A: (a) Prediction interval is always wider as compared to confidence interval. Hence,  Confidence…

Q: Use the lattice multiplication shown to answer parts a and b. 6. a. Determine the numbers being…

A:

Q: Find the predicted value of the number of deaths for the mean values of the independent variables. I…

A: Given that,

Q: 13. Find the probable error (i) r= 0 05, n = 25 (ii) r= +0.526, n = 50 comment on the value of r.

A: