The weight of 45 watermelons from a farm is shown below. Weight Frequency 11-15 4 16-20 8 21-25 13 26-30 11 31-35 9 i. Calculate the mean [2] ii. Calculate the median [3] iii. Calculate the mode [3]
Q: Assume a Chi-square test statistic is such that you reject the null hypothesis at a significance…
A: given data chi square test statistic we reject the null hypothesis at significance level αi which…
Q: Statistics students in Oxnard College sampled 11 textbooks in the Condor bookstore and recorded the…
A: From the given information we make the following table Number of pages (x) Cost (y) x2 y2 xy…
Q: The View Key pregnancies in a small rural village are normally distributed with a mean of 260 days…
A: given data, normal distribution μ=260σ=13let X be the length of a randomly recorded pregnancy in the…
Q: 9-A ANOVA Compare anxiety across 3 time-points. Assume a within subjects design. Calculate F values…
A: The given data is Subject Anxiety 1 Anxiety 2 Anxiety 3 1 22 38 42 2 31 40 50 3 20 32 43…
Q: c) Suppose that the results of carrying out the hypothesis test lead to non-rejection of the null…
A: Given information: H0:θ=0.90H1:θ=0.60 Let Y be the number of patients recovered from COVID-19 after…
Q: 1. Consider Rolling a Fair six sided Dice with sides of 1 through 6. Consider rolling this dice 70…
A: Mean is the average of all the observation in the data set. Mean is also calculated using the…
Q: In the following questions, use the t-distribution to find a confidence interval for a difference in…
A:
Q: A random variable is not normally distributed, but it is mound shaped. It has a mean of 15 and a…
A:
Q: hypothesis will be used to test that a population mean equals 6 against the alternative that the…
A: Explanation: Here given hypothesis mean equal value and significance level find out the critical…
Q: A person's blood glucose level and diabetes are closely related. Let x be a random variable measured…
A: GivenMean(μ)=86standard deviation(σ)=23
Q: A group of transfer bound students wondered if they will spend the same mean amount on texts and…
A: From the given information,
Q: The following table shows retail sales in drug stores in billions of dollars in the U.S. for years…
A: Given information- We have given the following table shows retail sales in drug stores in billions…
Q: Consider the following frequency distribution of x values X 5 10 20 25 F 3 7 8 2 The mean of the…
A: GIven data is X 5 10 20 25 F 3 7 8 2
Q: Identify the sampling techniques used in each scenario. e. surveying movie-goers as they exited the…
A: This is an example of convenience sampling.
Q: Given are five observations for two variables, x and y. (Round your answers to two decimal places.)…
A:
Q: You are given the following data: X = [1.5, 10.22, 2.4, 5.8, 0.43] What would you choose as the…
A: The values of x are given for which mean is µ. if model this as log normal distribution then it’s…
Q: QUESTION THREE Traffic engineers are studying the correlation between traffic flow on a busy main…
A: "Since you have posted a question with multiple subparts, we will solve first 3 sub-parts for you.…
Q: Problem 1) The cumulative distribution function of random variable X is: 0 x 1/2]. b) Find P[-1/2 <…
A: Note: According to Bartleby guidelines expert solve only one question and maximum three subpart of…
Q: Listed below are speeds (mi/h) measured from traffic on a busy highway. This simple random sample…
A: It is given that the sample data values are: 62 63 63 55 63 52 60 59 60 68 58 69
Q: Q1: Placebo effect of exercise In a high-profile research study, Crum and Langer (2007) performed an…
A: It is interpreted that, the test involves, 44 subjects in each of the groups, i.e., the treatment…
Q: A simple random sample of size n is drawn. The sample mean, ¿, is found to be 17.7, and the sample…
A: Solution: Given information: x =17.7 Sample mean s= 4.3 Sample standard deviation
Q: Describe the sampling distribution of P. Assume the size of the population is 30,000 N=400 P=.7…
A: Givensample size(n)=400population proportion(p)=0.7
Q: Here is a table showing all 52 cards in a standard deck. Suit Ace Two Three Four Five Six Seven…
A: no.of spades cards=13no.of king cards=4Total no.of cards=52
Q: Assume that x has a normal distribution with the specified mean and standard deviation. Find the…
A: Given X~N(μ=3.1, standard deviations σ=0.36)
Q: Test the claim that the mean GPA of night students is larger than 2.7 at the 0.005 significance…
A: The claim is that the mean GPA of night students is larger than 2.7.
Q: () The drawer still contains 40 socks - 20 blue, 10 purple and 10 green socks. Let's assume that we…
A: Given; Total number of socks in drawer = 40 socks40 socks = 20 bluem 10 purple and 10 green socks
Q: Telephone Calls A researcher knew that before cell phones, a person made on average 3.1 calls per…
A: Given n=26 Alpha=0.10 Standard deviation=0.6
Q: Bottles of a popular cola drink are supposed to contain 300 ml of cola. There is some variation from…
A: The question is about hypo. testing Given : Popl. std. deviation ( σ ) = 3 ml Data : To find :…
Q: Records maintained by the Budget of time elapsed between the reimbursement of funds has apprc off
A: Q 8 Records maintained by the Budget Office in a particular LGU indicate that the amount of time…
Q: In an unreplicated design with two levels each for four factors how many treatment are there?
A: The question is about design of experiment Given : No. of levels = 2 No. of factors for each level (…
Q: The data in Figure 2 below has to do with the stocks of three of South Africa's biggest mobile…
A: Solution: From the given information,
Q: The trade magazine QR routinely checks the drive-through service times of fast-food restaurants. A…
A: Given: Confidence level = 99% n = 719 Confidence interval = (159.1, 162.1) Formula Used: Margin of…
Q: Sick Days in Bed A researcher wishes to see if the average number of sick days a worker takes per…
A: Given Sample size n=28, population mean μ=5, sd =1.2 Level of significance ɑ=0.01
Q: A random sample of 17 fence posts from a garden center was found to have a mean length of 1.86 m.…
A: Givensample size(n)=17Mean(x)=1.86 m standard deviation(σ)=17cmσ=17100=0.17 mconfidence level=95%
Q: Claim: The mean pulse rate (in beats per minute) of adult males is equal to 69 bpm. For a random…
A: given data claim : μ = 69 n = 151 x¯ = 67.9 s = 11.2 test statistic = ?
Q: 1. The following table gives the protein intake of 400 intake of 400 families. Find the Range…
A: Given that: Class Frequency 15 - 25 30 25 - 35 40 35 - 45 100 45 - 55 110 55 - 65 80…
Q: Do college students enjoy playing sports just as much as watching sports? A researcher randomly…
A: From the provided information, Sample size (n) = 10 Level of significance (α) = 0.05 The difference…
Q: t of standard residuals on the predicted values. Are all four regression assumptions satisfied?
A: Assumption are verified for the regression about the data, such as : Linearity of the data. The…
Q: Consider a dataset containing the heights of 38 females who said they prefer to sit in the front of…
A:
Q: A pharmaceutical company claims that the average dose of the active ingredient of their pain killer…
A: Given: n = 26 s2 = 0.48 σ2 = 1.5 Formula Used: The upper confidence level = (n-1)s2χ1-α/22
Q: Assuming that the heights of college women are normally distributed with mean 70 inches and standard…
A: Given Mean=70 Standard deviation=2.9
Q: Legumes have various health benefits, including their high fiber content, which may lower the risk…
A:
Q: You are given the following data. X = [0.1, 0.21, 0.22, 0.34, 1.1, 1.3, 2.3, 3.22]. Assume you want…
A: We create frequency distribution table to create the histogram. Create class interval and count the…
Q: Refer to the accompanying data display that results from a sample of airport data speeds in Mbps.…
A: GivenMean(x)=17.598standard deviation(sx)=16.01712719sample size(n)=50
Q: (a) The area to the right of Z=-1.86 is (Round to four decimal places as needed.) (b) The area to…
A: It is given that the standard normal random variable Z. Note: According to Bartleby expert…
Q: When taking a 6 question multiple choice test, where each question has 5 possible answers, it would…
A: You have a 1 in 5 probability of guessing the correct answer for single question. You have 6…
Q: Part II. Perform the following: State the null and alternative hypothesis A. Complete the table. 1.…
A: Hypotheses: Null hypothesis: All the treatment means are equal. Alternative hypothesis: At least one…
Q: Salaries of Government Employees The mean salary of federal government employees on the General…
A: Given: μ = 59593 n = 36 σ = 1500 α = 0.01 Formula Used: Test-statistic-Z = X-μσn
Q: te and prove (for the continuous case) the Neyman-Pearson lemma.
A: Statement: Let k>0, be a constant and W be a critical region of size alpha such that W = X∈S:…
Q: A population of values has a normal distribution with μ = 109.1 and o = 70.6. You intend to draw a…
A: given data, normal distributionμ=109.1σ=70.6n=69we have to find out the given probability for thr…
The weight of 45 watermelons from a farm is shown below.
Weight Frequency
11-15 4
16-20 8
21-25 13
26-30 11
31-35 9
i. Calculate the mean [2]
ii. Calculate the median [3]
iii. Calculate the
iv. Comment on the skewness of this distribution. [2]
Step by step
Solved in 2 steps with 2 images