a. Calculate the rank correlation coefficient. b. Test the hypothesis @.05 level of significance.

Q: A store collected the following information on its 33 employees ... Of these employees , 9 cooked…

A: Given, Total no. of employees = 33 No. of employees cooked food = 9 No. of employees washed dishes =…

Q: The information below is very:1. Arithmetic mean 2. Standard deviation 3. Skew modulus Speed range…

A: First we count the values of X and we know that, mean =ΣfiXi/Σfi X fi 52.45 15 57.45 25…

Q: Regarding Normal Approximation to the Binomial, one rule states that the Normal Approximation…

A: The question is about normal approximation to the binomial

Q: 32. From the following table, you find mode. 43 46 49 52 55 58 Size Frequency 6 13 25 33 29 14 PHO…

A: From the given table we find the mode.

Q: A statistics class with 60 students were given an examination and the results are shown below. 88 47…

A: First we arrange the data set in ascending order so it would be easy to count the frequencies for…

Q: Answer in 30mins PLEASE The table below shows the list of COVID-19 vaccine prizes as of January…

A: Given Information: No. of observation=7Variable under study=Price (2 doses) in PesosSample…

Q: 21-30. Mean, Variance, and Standard Deviation of the sampling distribution. X-P(X) X² Sample…

A:

Q: c. The probability that the the child will be older than 5 years old? d. The probability that the…

A:

Q: of adults in the country who do not use the Internet. Based on the result, does it appear that A…

A: We have given thatn = 5009x = 755p̂ = x/n = 755/5009 = 0.1507

Q: In 2003, an organization surveyed 1,508 adult Americans and asked about a certain war, "Do you…

A:

Q: Does prison really deter violent crime? Let x represent percent change in the rate of violent crime…

A: Data is given for x and y We have to do correlation analysis.

Q: In a study treatments for very painful "cluster" headaches, 151 patients were treated with oxygen…

A:

Q: Let x be a random variable that represents the batting average of a professional baseball player.…

A: Let X be the independent variable and Y be the dependent variable. Let X represents the batting…

Q: (b) If r23= 1, prove that R² (23) = 112=113 and 01.23 = 01 (1-12).

A:

Q: 2. The heights of a random sample of 50 college students showed a mean of 174.5 centimeters and a…

A: From the provided information, Sample size (n) = 50 Sample mean (x̄) = 174.5 Standard deviation (s)…

Q: A physician wishes to know whether there is a relationship between a father's weight, in pounds, (X)…

A: Let X be the Father weight  Y be the Son's weight  X:176,160,187,210,196,142,205,215…

Q: Consider a drug testing company that provides a test for marijuana usage. Among 253 tested subjects,…

A:

Q: Since the election in the Philippines is approaching, a known state university conducted a survey to…

A: Given that, a known state university conducted a survey to its students on their preferred…

Q: What do you mean by 50C2

A: From the given question, The value of n is, 50 The value of r is, 2

Q: Note: Give an interpretation of your results. 1. In a survey conducted by BS Psychology students, of…

A: Formula : CI=p̂ ± ME

Q: You want to obtain a sample to estimate how much parents spend on their kids birthday parties. Based…

A: It is given that confidence level is 0.98, the population standard deviation is 35.1 and the margin…

Q: The following time series shows the sales of a particular product over the past 6 months.   Time…

A: Please note that I have answered as per our guidelines. Please repost the remaining questions…

Q: The region formed by a probability density function represented by a nonconstant linear function is…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 1. Cans of LaCroix are supposed to contain 355 milliliters (ml). There is some variation for each…

A:

Q: Suppose that in College Entrance Test, the cutoff score for passing is 85. If the mean of the test…

A:

Q: Consider the following hypothesis test. Ho: # 12 Ha: #> 12 A sample of 25 provided a sample mean -…

A: " since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: If the coefficient of determination of a simple regression equation is 0.81, the correlation…

A: Correlation coefficient is the square root of coefficient of determination.

Q: In 2014, approximately 13% of nonelderly Americans adults had no health insurance. Suppose that a…

A: Given: Proportion of American adults having no health insurance, p=0.13 Sample size, n=400

Q: A workout program states that there is an average weight loss of 12 pounds (lb) for those who enroll…

A: From the provided information, Sample size (n) = 30 Sample mean (x̄) = 13 Standard deviation (s) =…

Q: 1. In an attempt to assess the effect of the length of time spent in using social media to the…

A: a)

Q: ) Using the attached image, can you interpret the means? Explain. (b) How many participants are…

A: Since, we only solve up to three sub parts of a problem, we'll be solving the first three sub parts…

Q: Suppose that you are offered the following "deal." You roll a six sided die. If you roll a 6, you…

A: Disclaimer: Since you have posted a question with multiple sub-parts, we will solve the first three…

Q: Construct a valid joint PMF for a random vector with 3 components, say W=(X,Y,Z)' And give all…

A: Let X, Y, Z be three discrete random variables which takes the values  X=1,2,3Y=1,2,3Z=1,2 Let the…

Q: Find the range and mean or average deviation of the following data. Show your solution. 1.) 8,3,9,4

A: Given 8,3,9,4

Q: Q2/1- Find the z value to the right of the mean so that a. 96.71% of the area under the distribution…

A: According to our policy we can answer only first part for remaining please repost the question

Q: 36. Find mode from the following data. older griquon Classes 10- 20- 30- 40- 50- 60- 70-80-90- 59 69…

A:

Q: The Greens are moving. Their real estate agent located 81 houses listed for sale in their price…

A: This question can be solved by Venn - diagram very easily. Given 45 had a finished basement  50 had…

Q: 1. Compute the mean cost per vaccine to the nearest centavos 2. Compute for the standard deviation…

A: Mean let x1,x2,x3,........,xn  be the n observations. Then the mean is defined by…

Q: According to the Internal Revenue Service, the average length of time for an individual to complete…

A: According to our policy, we supposed to answer only first three question, kindly repost remaining…

Q: 1. Miss Romero noted that the mean scores of a random samples of 15 Grade- 8 students who had taken…

A: We have given that,  Sample mean (x̄) = 80.5, standard deviation (s) = 3 and sample size (n) = 8…

Q: Instruction: Answer the following question, show your solution and once you get the final answer,…

A: As per our guidelines we are supposed to answer only one question per post so I am solving first…

Q: 27. Route Planning Brian needs to visit the pet store, the shopping mall, the local farmers market,…

A:

Q: Researchers watched groups of dolphins to determine what activities the dolphins partake in at…

A: Given: Activity Morning Noon Afternoon Evening Total Travel 19 13 14 15 61 Feed 30 20 14 54…

Q: The highway mileage (mpg) for a sample of 10 different models of a car company can be found below.…

A: Given that, Highway mileage of 10 different samples 39,24,36,44,45,46,40,30,43,44 n=no. of…

Q: ASAP for a standard normal distribution, find: P(-3.59 < z < .05)

A: Solution

Q: Two suppliers manufacture a plastic gear used in a laser printer. The impact strength of these gears…

A: Given that, a random sample of 10 gears from supplier 1 results in x₁ = 290 and s₁ = 12, and another…

Q: write an analysis for the data above and what does the p value mean?

A: From the given information we find the solution.

Q: An automatic machine in a manufacturing process is operating properly if the lengths of an important…

A: Given that.   X~N( μ , ?^2 )   μ=117     , ?=5.2   Z-score =( x - μ )/?

Q: 1. Given the data: 29.65 28.55 28.65 30.15 29.35 29.75 29.25 30.65 28.15 29.85 29.05 30.25 30.85…

A: d) The minimum value is 28.15.

Q: In a one-sample t-test, the results are as follows: t(31) = - 3. 41, p<0.01. How many data points…

A: A one – sample t-test is performed.