Student Lungani Nsika Thembekile Mduduzi Variable The body temperature of a patient diagnosed with COVID-19 The price of a technology company stock on the NASDAQ The age of his bull mastiff The number of female students in Mduduzi's Python class Which student/s provided a continuous true zero variable? A. Lungani B. Lungani and Nsika C. Nsika D. Thembekile and Mduduzi

Q: Show supporting work for each section  identify the claim & state H0 & Ha  select correct choice &…

A: X =70 n =280 sample proportion =x/n =0.25 level of significance = 0.05

Q: (a) Compute the expected values of each cell under the assumption of independence. Had sexual…

A: The two categorical variables are family structure and sexual activity. Given that, Had sexual…

Q: If the population standard deviation is unknown, the population is far from being normally…

A: We have given that, The population standard deviation is unknown. The population is far from being…

Q: Directions: Complete this assignment in 500-750 words using the following information: A researcher…

A: To solve the above question, we will use R programming language to perform a multivariate analysis…

Q: (d) In the sample obtained in part (a), what is the probability that the proportion who are…

A:

Q: A researcher used 1998 GSS data (n=1235) and 2014 GSS data (n=2,426) to answer two questions: 1)…

A: The two outputs are given.

Q: Part A (Introduction): a) Write an introduction: • Explain the problem in general (e.g., vitamin D…

A: Country Gender Sun_Exposure Age Vitamin_D_level A Male Low 37 45 A Male Low 31 40 A Male Low…

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A: A simple linear regression is used to describe the relationship between the dependent and the…

Q: In a study of 800 randomly selected medical malpractice lawsuits, it was found that 510 of them were…

A: claim : p > 0.5n = 800x = 510α = 0.01

Q: Part D and H is incorrect it wasn't 48.26.Part G isn't 275 but 125 is correct.I didn't get a answer…

A:

Q: A study considered the question, "Are you a registered voter?" Accuracy of response was confirmed by…

A: x1=79, n1=94x2=73, n2=82

Q: QUESTION 20 A horse race with 8 equally skilled participants will result in prizes for the three…

A: Number of way is P(8,3)

Q: Let Z be a random variabale satisfying N(0, 1). Without using the normalcdf(...) function, find P(Z…

A: The Z be the standard normal variate The mean is zero. The standard deviation is 1. Z~N(0,1)

Q: On the hypothesis that μ= 7.8, your t-statistic is -2.75, with 25 degrees of freedom.  Suppose you…

A: Solution-: Given: μ=7.8,tStat=-2.75,df=25,c=0.95 We want to select group of answer choices (a)…

Q: Tables, Charts and Diagrams Average prices (in dollars) were recorded for three types of beverage…

A: The clustered bar graph indicates the average prices for three types of beverage across all 8 major…

Q: Which student's provided a quantitative variable? A. Nsika and Mduduzi B. All students provided a…

A: Solution:- Nsika provided a quantitative variable - the price of a technology company stock on the…

Q: The following 10 scores were input in the gradebook for Prof. Rodriguez's class. 15, 75, 78, 82,…

A: We have given data are 15,75,78,82,85,87,88,96,96,189

Q: 1) Compute the actual value indicated by A. 2) Compute the actual value indicated by B. 3) Compute…

A: The numbers of tourists (in thousands) visiting Table Mountain in Cape Town per quarter, for three…

Q: 6. Find the critical value(s) and rejection region(s) for the indicated t-test, level of…

A: Sample size (n)=5 Level of significance ɑ=0.025  We have to find t critical value for left tail test…

Q: Conduct a test at the 5% level of significance to determine if the average satisfaction rating for…

A: Consider the samples are taken randomly Let us assume the population follows a normal distribution…

Q: A horse race with 8 equally skilled participants will result in prizes for the three horses that…

A: There are 8 equally skilled horses participating in the race, and the horse trainer has 3 horses.

Q: The true value of a certian statistic (e.g., mean) that defines the population that the sample came…

A: a): The true value of certain statistic (eg, mean) that defines the population that the sample come…

Q: The City of Long Beach experienced many crashes involving bicyclists in one location. Bike lanes…

A: The null and alternative hypothesis are given as- Null hypothesis: There is no difference in number…

Q: Let X represent the width and Y represent the length of rectangular panels used for interior doors…

A: Let X and Y be the length and width of rectangular panels used for interior doors X~N(μx=20 ,…

Q: A computer can be classified as either MAC or PC. Of all of the computers in the school, 29% are…

A: It is given that 29% of the computers are MAC.

Q: Now suppose the two distributions in the image below represent the sampling distribution of scores…

A:

Q: A study was done to compare the average price of wine from three countries: France, USA, and Italy.…

A:

Q: Cars arrive at a toll booth according to a Poisson process at a mean rate of 15 cars every 30…

A: Approach 1: Relationship between Gamma and Chi-square distributions The time until the 10th car…

Q: 22. A fast food restaurant estimates that the mean sodium content in one of its breakfast sand-…

A: Solution-: Given: μ0=920,σ=18,x¯=935,n=32,α=0.10 We want to find (a) The sample mean is 935…

Q: The following table shows retail sales in drug stores in billions of dollars in the U.S. for years…

A: A linear model for the data is F(t)=9.44t+84.182

Q: A statistical program is recommended. The authors of an article found that the speed of a prey…

A: Prey Length Prey Speed Catch Time 7 20 1.11 6 20 1.21 5 20 1.22 4 20 1.41 3 20 1.51 3 40…

Q: A gambling game pays 8 to 1 and has chance 1 out of 10 of winning. If someone plays this game 225…

A:

Q: In a random sample of eleven people, the mean driving distance to work was 21.1 miles and the…

A: n=11 Mean=21.1 Standard deviations=6.5 Alpha=0.10 Df=10

Q: With help of excel, conduct a test at the 10% level of significance to determine if there is…

A: To test if there is a difference between the proportion of male and female employees who are asked…

Q: Patient satisfaction. Scores derived from a patient satisfaction survey are Normally distributed…

A: Given information: μ=50, σ=7.5n=36 a)  μx¯=μ=50σx¯=σn=7.536=1.25

Q: A sample of 28 dugongs (sea cows) is collected and data on the age (in years) and length (in yards)…

A: Intercept = 2.0256 slope = 0.0289 regression is given by  Length= Intercept+(Slope ×Age)y=…

Q: Student Lungani Nsika Thembekile Mduduzi Variable The body temperature of a patient diagnosed with…

A: Here the students are Lungani, Nsika, Thembekile, and Mduduzi with variables are body temperature,…

Q: Referring to the table below, which of the following statements is true? The following Microsoft®…

A: x= percentage attandance y=exam percentage We have regression model table Then interpret the fitted…

Q: Many runners believe that listening to music while running enhances their performance. The authors…

A: Let us consider the samples are taken randomly Assume the population follows normal distribution…

Q: [5, 6.5, 6, 8, 6, 6, 6, 7, 5, 7, 6, 6.5, 7, 6, 7, 4, 8, 6] 1. Create a dot plot of these…

A: 1)

Q: Adult female dalmatians weigh an average of 50 pounds with a standard deviation of 3.3 pounds. Adult…

A: Adult female dalmatians weigh an average of 50 pounds with a standard deviation of 3.3 pounds. Adult…

Q: Use the following to answer the question: y = -3x + 13.9 with R² = 34%. Which best describes the…

A: The regression equation is y^=-3x+13.9 Coefficient of determination(R2)=34%=0.34

Q: There is a study to be done on the mean duration of phd students at small universities. What is the…

A: The standard deviation is 42 months, the margin of error is 12 months and confidence level is 99%.

Q: Which of the following tests can be used with non-normal variables? ANOVA Wilcoxon rank-sum test…

A: In order to obtain which of the assumption is considered for the two-sample t-test, the basic…

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: (1) The probability that salary of a randomly selected single graduate is more than 130000 dollars…

Q: For this question refer to the grouped frequency distribution shown in Table 2, in which the…

A: The percentile is the measure which divides the entire data set into 100 equal parts. Here 99…

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

A: Sample size n=1700 Year A: Sample proportion p^=0.629 Year B: Sample proportion p^=0.477

Q: Two major automobile manufacturers have produced compact cars with engines of the same size. We are…

A: Driver Manufacturer A Manufacturer B 1 32 28 2 27 22 3 26 27 4 26 24 5 25 24 6 29 25 7…

Q: Listed below are amounts of strontium-90 (in millibecquerels, or mBq) in a simple random sample of…

A: Data 126 127 130 134 135 139 139 141 143 145 149 151 152 153 155 158…

Q: a. The R2 of a multiple regression of y on x1 and x2 measures the ________. percentage of the…

A: “Since you have posted multiple questions, we will provide the solution only to the first question…