The following data set indicates the favourite brand of washing powder chosen by a sample of twenty four consumers living in the Port Elizabeth area (SEE ATTACHED IMAGE OF DATA) How do I count the frequency values and draw a bar chart for this set

Q: You wish to test the following claim (Ha) at a significance level of a = 0.002. Ho: P₁ = P2 Ha: P₁…

A: given data α = 0.002H0 :  p1 = p2Ha : p1 > p2n1 = 799,     p^1 = 0.369n2 = 465,   p^2 = 0.353

Q: Calculate the mode of the following sample data set: 8 10 7 14 53 22 5 5 5 22

A: Given data is 8,10,7,14,53,22,5,5,5,22

Q: Construct a stem-and-leaf display for the following data. (Enter numbers from smallest to largest…

A: The objective is to construct a stem-and-leaf plot for the given data.

Q: Least squares practice find the best-fit line for the following data sets. Plot the points and the…

A: Given: Sample size(n)=3   x y xy x^2 y^2   -1 0 0 1 0   0 6 0 0 36   3 8 24 9 64…

Q: Variable descriptions Gender = 0 (male), 1 (female) Major = student's major Age = age of student in…

A:

Q: As the years (t) go by revenue (r) at a small business increases continuously $1000's Revenue(r)…

A: Given data: Year(t) $1000's Revenue(r) 4.0 169.00 5.0 214.00 6.0 243.00 7.0 301.00 8.0…

Q: It has been said the vitamin C has the ability to cure or prevent the common cold. Residents at a…

A: For the given data (a)    Describe how you would conduct a hypothesis test for this case.…

Q: Our environment is very sensitive to the amount of ozone in the upper atmosphere. The level of ozone…

A: Given Population mean μ=4.1, n=sample size=66, sample mean x̄=4.3, sample variance=s2=1, level of…

Q: You wish to test the following claim (H) at a significance level of a = 0.05. Ho: P₁ = P2 Ha: P₁ P2…

A: At α = 5% level of significanceH0:p1=p2Ha: p1>p2 p1 0.186 p2 0.142 n1 280 n2 465

Q: In general, higher confidence levels provide wider confidence intervals narrower confidence…

A: Confidence Interval: A confidence interval is a spectrum of numbers that are often constrained by…

Q: ines the variability in the math scores of students accepted to the  business and engineering…

A: Given: s1=122.4s2=106.5n1=16n2=19Level of significance α=0.050

Q: One professor grades homework by randomly choosing 4 out of 15 homework problems to grade. (a) How…

A: Combination is the possibility of choosing of an item from a collection of items in which the order…

Q: On the pie chart, estimate the central angle for the leading cause is train derailments.

A: Concept: Pie charts are used for the graphical representation of the data.

Q: Need Help finding correct test statistic and p-value. Both listed are incorrect!

A: Given Information: First Sample: Sample size n1=799 Sample proportion p^1=0.369 Second Sample:…

Q: (a)    It has been reported that the length of human pregnancies from conception to birth…

A: a)GivenMean(μ)=266standard deviation(σ)=16

Q: 16; 17; 17; 20; 20; 21; 23; 24; 25; 25; 25; 26; 26; 26; 27; 27, 28, 29, 30, 32, 33, 33, 34, 35, 37,…

A:

Q: This is rejecting Ho when it is true. If the alternative hypothesis says not equal to we know are…

A: We have to match the given definitions with the given terms.

Q: You are given the following dataset for the weight of 11 patients in a psychiatric ward.   74 55…

A: The data is as follows x 74 55 60 56 72 58 65 66 70 78 69

Q: What is the test statistic for this sample? (Report answer accurate to three decimal places.) test…

A: Given: α=0.002 Sample proportion, p^1=0.369  Sample size, n1 is 799 Sample proportion, p^2=0.353…

Q: Mars corporation (the manufacturer of Skittles® candy) states that 20% of all Skittles® candy…

A: Given thatp = 0.20n = 25 Since here number of trial is fixed hence we will use binomial distribution…

Q: How do you find sample variance and population variance?

A: Sample Variance:      The variance is calculated using the sample data as given the sample variance.…

Q: survey of 37 people conducted to compare their self-reported neight height. The difference between…

A: Given data,n = 37 people, was compare there self reported height to there actual height testing the…

Q: Question 11: Perform 3-point moving mean smoothing on the following data which represents the…

A: week sales smoothed data 1 34   2 27   3 31   4 37   5 41   6 29   7 32   8 37   9…

Q: 5) Two samples are taken with the following sample means, sizes, and standard deviations ¯x1 = 20…

A: Solution: Given information: n1=61n2=50x1=20x2= 29s1=2s2=5

Q: Researchers determined that 60 Kleenex tissues is the average number of tissues used during a cold.…

A: Solution: Given information: n= 100 Sample size  x=52 Sample mean s= 22 Sample standard deviation μ=…

Q: A pharmaceutical manufacturer wants to make a prepared droperidol needle at a dose that will sedate…

A: Hint:  The formula to determine the sample size n  based on proportions is given;…

Q: The contingency table below summarizes a survey of 1,000 bottled beverage consumers. P(Recycles)…

A: Solution To find the probabilities we will use conditional probability rule.

Q: If the population from which your samples are taken is not normally distributed, then sampling…

A: The shape of the sampling distribution of difference between sample means depends on the…

Q: You wish to test the following claim (HaHa) at a significance level of α=0.05α=0.05.       Ho:p1=p2…

A: Given: n1=280p1=0.186n2=465p2=0.142α=0.05

Q: If posts are 5 feet apart, how many posts are needed for 45 feet of straight-line fence?

A: Given the information that the posts are spaced 5 feet apart. Since the size of the post was not…

Q: A new machine has just been installed to produce printed circuit boards. One of the critical…

A: Given data: Time 1 2 3 4 5 8:00 87.1 87.5 88.1 87.2 87.0 8:30 86.9 88.5 87.6 87.5 87.4 9:00…

Q: Want to explain these outputs?

A: Assumption of normality can be tested using normality test. It can be tested using the various…

Q: To test the effect of alcohol in increasing the reaction time to respond to a given stimulus, the…

A: The following information has been provided: Before After d=μd=μbefore-μafter 3 8 3-8=-5 5 9…

Q: You are conducting a test of the claim that the row variable and the column variable are dependent…

A: The provided row and column variables are given as:

Q: You are conducting a test of independence for the claim that there is an association between the row…

A: Given that  Observed Frequency table   X Y Z A 31 4 28 B 20 62 25

Q: A sample of 30 employees from large companies was selected, and these employees were asked how…

A: The responses are given as: Here, the response "none" is defined to be "not stressful at all".

Q: 5.2643748.qx3zqy7 Jump to level 1 An airline company is interested in improving customer…

A: Given Information: The customer satisfaction rate currently is 54% An airline company is interested…

Q: The following stem-and-leaf display is prepared for the number of hours that 25 students spent…

A:

Q: Independent random samples of n₁ = 18 and n₂ = 13 observations were selected from two normal…

A:

Q: Question: The Law of Total Probability is usually written as: P(B) = P(B|A)P(A) + P(B|A¶)P(Aª).…

A: Given: P(B)=P(B|A)P(A)+P(B|Ac)P(Ac)

Q: Let A denote the event that a sample has excellent surface finish, and let B denote the event that a…

A: from given information  A denote the event that a sample has excellent surface finish,  B denote the…

Q: Calculate the median of the following sample data: 8 10 7 14 53 22 5 5 5 22 Answer:

A: Given data is 8,10,7,14,53,22,5,5,5,22

Q: he data represents the heights of eruptions by a geyser. Ise the heights to construct a stemplot.…

A: For the given data The values closest in the middle are ? inches and  ? inches

Q: Hospitals typically require backup generators to provide electricity in the event of a power outage.…

A: Ans= For each emergency backup generator, there are only two possible outcomes. Either they work…

Q: What are the estimated proportions? What are the null and alternative hypothesis? Chapter 7 (see…

A: by bartleby policy i can give only one answer question

Q: Class: Frequency: Calculate the median of the following frequency distribution: 40-50 16 20-30 6…

A:

Q: Use the z-score formula, x-μ , and the information below to find the value of 6 6. Round your answer…

A: Givenz-score(z)=-1.90x=13.37Mean(μ)=21.35

Q: b) Find the area under the standard normal curve to the right of 21.06 OC

A:

Q: You are conducting a test of homogeneity for the claim that two different populations have the same…

A: Given that Category Population#1 Population#2 A 18 46 B 46 113

Q: Example 14.3 The following table shows the tons of steel produced versus the number o workers in a…

A: Regression is the statistical analysis method that used to predict the variable. It can be…