If the coefficient of determination for a simple regression is 38.9534%, what is the correlation value between the dependent and independent variable?  Assume that the variables have a positive relationship.  Enter your answer as a decimal.

Q: A survey of 1610 people who took trips revealed that 104 of them included a visit to a theme park…

A: Given information- Sample size, n = 1610 Population proportion, p = 0.08 Significance level, α =…

Q: 110 adults with gum disease were asked the number of times per week they used to floss before their…

A: It is given that 100 adults with gum disease were asked the number of times per week they used to…

Q: The mean incubation time for a type of fertilized egg kept at 100.6°F is 21 days. Suppose that the…

A: It is given that  Mean, μ = 21 Standard deviation, σ = 2 Z-Score, Z = ( X - μ )/σ

Q: The p-value =  (Please show your answer to 4 decimal places.) The p-value is ____  α Based on this,…

A: Given that  n = 266 , X = 162 Note : According to bartleby experts question answers guidelines an…

Q: Sketch the area under the standard normal curve over the indicated interval and find the specified…

A: Solution-: We want to find the area to the left of z=-1.43

Q: have a group of eighth graders. You asked them in July to estimate about how many hours of sleep…

A: It is given that the statement about to the testing of hypothesis. Here, need to find out the…

Q: Find the indicated probability. (1) The table below describes the smoking habits of a group of…

A: According to the given information, we have Total number of persons = 1073

Q: A financial analyst is examining the relationship between stock prices and earnings per share. She…

A: The regression equation is y^=-0.224+0.044x.

Q: Suppose X is Normally distributed with mean 25 and standard deviation 4.  Suppose Y is Normally…

A: given data  X : normal distributionμx = 25σx = 4Y : normal distributionμy = 30σy = 5

Q: progressive college experiments with matching roommates at random, regardless of gender or how cool…

A: Given that The joint distribution of gender and coolness is:   Cool Lame Total Boy 0.1322314…

Q: ) O Consider a standard 52-card deck from which one card is randomly selected and not replaced.…

A: a) From a standard deck of 52 card a card is selected and not returned.

Q: (a) Complete the grouped frequency distribution for the data. (Note that the class width is 4.) (b)…

A: Given that, The biology test score of a student in the last week.  Number of students (n) = 16 The…

Q: In this setting we have Σx = 129, Σy = 82, Σx2 = 2405, Σy2 = 956, and Σxy = 1497. (a) Find x, y, b,…

A: Given that Let x = weight of incoming mail and y = number of employees required to process the mail…

Q: The data below are the final exam scores of 10 randomly selected statistics students and the number…

A: The data shows the 10 randomly selected statistics students and the number of hours they studied.

Q: How do I find the adjusted confidence level for NORM.S.IN() in excel? What will the adjusted…

A: Confidence level is 95  so, α=1-95%  =1-0.95  =0.05

Q: Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 36 of the…

A: Given that: Echinacea treatment: n1=43x1=36 Placebo treatment: n2=87x2=100 Significance level,…

Q: Draw the normal curve with the parameters indicated. Then find the probability of the random…

A: Mean(µ) = 55Standard deviations (σ) = 8 X ~ N (µ, σ )= N(55,8)

Q: certain town, 65% of the voters support a school referendum up for a vote. If 5 voters are asked for…

A: Given that  n = 5 , p = 65% = 0.65 , q = 1 - p = 1 - 0.65 = 0.35 X ~ Binomial (n = 5 , q = 0.35) X :…

Q: It is desired to know the true proportion of divers who get "the bends" (sickness from nitrogen in…

A: given data 92% ci for p p^ = 0.21n = ?E = 0.04

Q: The following data show the number of contacts that a sample of high school students had in their…

A: Given information: The data is given below, Male (x) Female (y) 124 30 41 83 29 116 27 22…

Q: In 1974, the mean height of a woman in the United States was 63.7 inches, with a standard deviation…

A: Solution-: Given: μ=63.7,σ=2.5 We want to find  P(a randomly selected woman would be shorter than 60…

Q: MU CHOICE. Choose the one alternative that best completes the statement or answers the Construct a…

A: Solution: Let x= Before training  and y= After training  x y d=x-y (d-d)2 115.2 116 -0.8…

Q: For the question 3 & 4 - A sample of the hourly wages of 15 employees at Venetian Macau was…

A: The question is about representation of the data Given :   To find : 3 ) What is the above table…

Q: One study claimed that 88% of college students identify themselves as procrastinators. A professor…

A: Given,n=282x=235Population proportion(P)=0.88sample proportion(p^)=xnsample…

Q: Independent students show that the average length of education of 70 r/s California adults is 12.7…

A: Confidence interval is an interval such that the probability of the unknown parameter to be included…

Q: Use the given data to find the 95% confidence interval estimate of the population mean μμ. Assume…

A:

Q: A researcher is interested in whether completing a six-week speed-reading course designed for…

A:

Q: It is suggested by college mathematics instructors that students spend 2 hours outside class…

A: From given data we have : μ=480 minutes

Q: A simple random sample of size n=450 individuals who are currently employed is asked if they work at…

A: From given data we have : n=450 x=27 so, Point estimate is  p^=xn  =27450  =0.06

Q: The data in the Table below are a sample of 25 patients discharged from  Regional Referral Hospital…

A: Given information: ID no. Duration of hospital stay Age Sex First temp. following admission First…

Q: Education developers are challenging whether the enrollment rate at online educational events…

A: given data year 2022 : n1 = 200x1  = 168year 2021 : n2  = 200x2 = 179α = 0.01claim : p1 < p2

Q: The figure below illustrates monthly data over 10 years. What method would you expect would perform…

A: From the graphical representation, it concludes that there are no seasonal variations in the data,…

Q: Women's height are normally distributed with a mean of 64.7 inches and a standard deviation of 3.1.…

A: Given that.   X~N( μ , ?)   μ=64.7     , ?=3.1   Z-score =( x - μ )/?

Q: led variables such as water temperature and confounded?

A: Given: Researchers are studying the effect of pH level in water on the breeding habits of moon…

Q: 4. Complete the following table. Round the values to the tenth. Write "NA" if not applicable. Units…

A: Given data:

Q: The weight of fish in Baggins Creek have a mean of 5 pounds and a standard deviation of 1.25 pounds.…

A: Given Information: Mean μ=5 Standard deviation σ=1.25 Sample size n=36

Q: If Meg got a C in her two-unit PE class, an A in her three-unit Statistics class and a B in her…

A: From the provided information, the followings are interpreted: Subject No. of units Grade PE  2…

Q: (b) For the period from 1918 to the present, in a random sample of 12 wolves spotted in the region,…

A: The probability mass function (pmf) of the binomial distribution is                 P(X=x) = ncx px…

Q: Let's look at the relationship between hour Price (in thousands of dollars) and house Size (In…

A: Note: Hi! Thank you for the question. As you have posted multiple sub-parts, according to our…

Q: The average salary for American college graduates is $40,700. You suspect that the average is…

A: Given,sample size(n)=54sample mean(x¯)=$46,049standard deviation(s)=$11,980and α=0.05

Q: Which statistical test should be used?

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

Q: 3. A random sample of 200 items is found to have mean of 32 and standard deviation of 4.8. Find 99%…

A: Given  n=sample size=200, sample mean=32, sd=s=4.8, level of significance=0.01

Q: NASA is conducting an experiment to find out the fraction of people who black out at G forces…

A: given data p^ = 0.4 E = 0.04 98% ci for p n = ?

Q: Use the following set of observed frequencies to test the independence of the two variables.…

A:

Q: a simulation is performed to predict the number of times a volleyball player will successfully serve…

A: The success rate given in this case is around 60 percent. This indicates that the if there are 10…

Q: 1. An urn always contains 2 balls, and ball colors are either red or blue. At each stage, a ball is…

A: An urn contain 2 balls. Inititally both the balls are red. Let, Xn= number of red balls after nth…

Q: In a study of police gunfire reports during a recent year, it was found that among 540 shots fired…

A: Given that We have to construct 95%  confidence interval for the difference of two proportions

Q: esearchers wer the researchers found that 52 were from trauma patients. At the conclusion of the…

A: Given: The 90% confidence interval for the proportion of ICA cases that occurred in trauma patients…

Q: Data lists full IQ scores for a random sample of subjects with low lead levels in their blood and…

A: given data 95% ci for difference in mean : (-2.929,6.9488)we have to test claim that the mean IQ…

Q: The coefficient of determination of a set of data points is 0.93 and the slope of the regression…

A: The coefficient of determination is r2 = 0.93.