Use the following table to answer the question. A random sample of college students was asked to respond to a survey about how they spend their free time on weekends. One question, summarized in the table below, asked each respondent to choose the one activity that they are most likely to participate in on a Saturday morning. The activity choices were homework, housework, outside employment, recreation, or other. Male Female Total None of these O 0.075 Homework Housework Outside Employment Recreation Other Total 29 15 23 9 96 18 17 4 104 47 32 13 200 O 0.145 O 0.395 224 20 If one student is randomly chosen from the group, what is the probability that the student chose "homework" or "housework" as their most likely activity on a Saturday morning? 26 46 39 62

Q: Where Is the Best Seat on the Plane? A survey of 1000 air travelers¹ found that 60 % prefer a window…

A: The question is about confidence interval Given : No. of air travelers in a survey ( n ) = 1000…

Q: The average per capita spending on health care in the United States is $5274. If the standard…

A: From the provided information, Mean (µ) = 5274 Standard deviation (σ) = 600 X~N (5274, 600)

Q: Each week, Bob and three friends from work pool their money together and buy 12 lottery tickets that…

A:

Q: Perpetrators of a crime who have been given the maximum sentence of 10 years are believed by the…

A: Hypothesized mean μ0=7 Sample size n=20 Sample mean x=7.6 Sample standard deviation s=2.4 Level of…

Q: A materials engineer working for a furniture manufacturer wants to evaluate the rigidity of the…

A: Density Rigidity 9.5 14.814 8.4 17.502 9.8 14.007 11 19.443 8.3 7.573 9.9 14.191 8.6…

Q: It is argued that more time spent studying will result in improved course marks among ECO242…

A: Skewness= -0.9779Kurtosis=2.2552α=0.05n=30

Q: No written by hand solution The Coca-Cola Company reported that the mean per capita annual sales of…

A: The data is given as- Sample mean:x¯=479.5 Sample standard deviation: s=90 Sample size: n=61

Q: The expected observations for this table would be Population Population Category #1 A B The…

A: Here the two categories are given. Given that, Category Population 1 Population 2 Total A 46 59…

Q: 21. Cost Estimation. An important application of regression analysis in accounting is in the…

A: Given data: Production Volume (Units) Total Cost ($) 400 4000 450 5000 550 5400 600 5900…

Q: Find the variance and standard deviation for the sample data with clear steps…

A: Given: Let, X  = 84,72,73,73,45,51,65,52,41,94,41,88,32,21, 27,68,44 Sample size :n = 17 To find: 1.…

Q: A reviewer decides to interview patrons to see how they would rate a particular restaurant. The…

A: The data is given for restaurant ratings. No. of patrons (n) = 25 To find the frequency distribution…

Q: 6. Find the sum of the areas under the standard normal curve to the left of z = -1.25 and to the…

A: We have to find sum of the area under standard normal curve to the left of z=-1.25 and to the right…

Q: A regression was run to determine if there is a relationship between hours of TV watched per day (x)…

A: The question is about regression Given : y = ax + b a = -1.27 b = 26.869   To find : Pred. no. of…

Q: Find the chi-square test statistic for below table. Deposit Litter 18 7 42 33 Females Males

A: From the provided information,   Deposit Litter Total Females 18 7 25 Males 42 33 75 Total…

Q: If np 25 and nq 25, estimate P(fewer than 2) with n=14 and p = 0.4 by using the normal distribution…

A: np≥5  and nq≥5,    n=14  and p=0.4We have to find P(fewer than 2)Normal approximation is not…

Q: What's your favorite TV show? The following table presents the numbers of viewers, in millions for…

A: The random variable  X is the number of viewers, in millions for the top 12 prime-time shows for the…

Q: The null and alternative hypotheses are given. Determine whether the hypothesis test is left-tailed,…

A: The null and alternative hypothesis is H0:μ=8.5 H1:μ≠8.5

Q: Calculate the 16th and 83rd percentiles of the data set shown below. 4 10 1 5 26 11 28 6…

A: The observations in increasing order is  1,4,5, 6, 10, 11, 26, 28 n= 8 observation

Q: The following data represents the age of 30 lottery winners. 20 35 49 58 67 26 30 32 32 35 38 41 42…

A:

Q: The results of inspection of DNA samples taken over the past 10 days are given below. Sample size is…

A: Day Defectives 1 6 2 8 3 8 4 10 5 6 6 7 7 0 8 9 9 12 10 1

Q: A researcher obtains a Pearson correlation of r = .46 for a sample of n = 20 participants. For a…

A: The Pearson's correlation: r=0.46 The sample size: n=20 Assume that this is a two-tailed test.

Q: Mike, a lumber wholesaler, is considering the purchase of a (railroad) car- load of varied…

A: The probability distribution of the reselling of load is given as (consider the random variable Xi…

Q: table shows the number of cars sold. AGENT NUMBER OF DEALS A 5 B 7 с 4 Tot a give D 2

A: given AGENT A B C D NUMBER of DEALS 5 7 4 2

Q: Use the t-distribution to find a confidence interval for a difference in means µ₁ − µ₂ given the…

A: It is considered that μ1, μ2 are the population means for 1st and 2nd population respectively.

Q: Web Player Music for everyone The senior class president of a large university claimed that 40% of…

A: Mean =0.4SD=0.049

Q: Use StatKey or other technology to find the regression line to predict Y from X using the following…

A: The two variables with 6 observations are given

Q: Red Blood Cell Count: A simple random sample of 300 adult males is taken to measure the red blood…

A: Let a sample is taken from the population.  The mean significance of the sample and the population…

Q: The owner of a computer repair shop has determined that their daily revenue has mean $7200 and…

A: We have given that  Mean(µ) = 7200Standard deviations (σ) = 1200 Number of days (n) = 30

Q: In a test of H₁: μ = 100 against H₂: µ‡ 100, the sample data yielded the test statistic z=2.28. Find…

A: H0:μ = 100Ha:μ≠100Z = 2.28p value = ?

Q: recorded with mean 90%. If the population standard deviation is known to be 15%, estimate the mean…

A: n = 250 population standard deviation  =  15%  Sample mean =  90%  Confidence level=  95%

Q: We know: n = 40 and sx = 8,6 Find Sxx (Show 1 decimal place.)

A: n=40, Sx = 8.6

Q: An economist studying inflation in electricity prices in 2018 and 2019 believes that the average…

A: The question is about hypo. testing Given :   To find : 1 ) Appropriate hypo. 2 ) value of test…

Q: Four car dealers recorded the number of cars they were able to sell for a given month. The following…

A: Note:- "Since you have posted a question with multiple sub parts, we will provide the solution only…

Q: dgrapn of u man distributio this distribution that is greater than -5. 0.4 0.3+ 0.2+ nedn 0.1 0.4+…

A: Z =( xbar - mu) /sigma

Q: Suppose that the values of y are generated by the following equation: y = a + ßx + e Where a and ß…

A: α^A=25, β^A=2.5α^B=5, β^B=10

Q: At a local university, a graduate professor in Psychopharmacology believes that weekly quizzes is…

A: In the given situation, There are three types of quizzes and six different students. Student…

Q: Chicken farming is a multi-billion dollar industry, and any methods that increase the growth rate of…

A: The formula of the standard error of the point estimate for the difference is,

Q: Three balls are chosen randomly from an urn containing 18 balls, 10 green balls, 5 black, and 3 red…

A: Given, Total number of balls = 18 No.of green balls =10 No.of black balls =  5 No.of red balls = 3…

Q: An ambulance service located at the edge of town is responsible for serving a large office building…

A: It is given that: For the route A:  x¯=5.9sx=1.4n1=5 For the route B, y¯=4.2sy=1.8n2=6

Q: Delta has a new jumbo jet they believe will decrease the flight time from Newark to London Heathrow.…

A: Hypothesis is an assumption that is being tested.

Q: Suppose that the TSH (Thyroid Stimulating exactly 95% of healthy individuals have TS your…

A: Mean=3.1 X=6.1 95%

Q: Decide which of the following statements are true. The line of symmertry for all normal…

A: One type of continuous probability distribution is a normal distribution. It shows the symmetrical…

Q: Choose the correct statement. O The SST is 0 for any OLS regression. The sum of the residuals is 0…

A: Each regression equation has three types of variability. They are total variability, residual…

Q: 2. A school administrator claims that less than 50% of the students of the school are dissatisfied…

A: The hypothesized (or claimed) proportion, p0=50%=0.50 The sample size, i.e., the no. of sampled…

Q: Here's the table summarizing the frequency of two traits in that Biology class. Students are…

A: Tongue Earlobes Observed count Expected count Non-curling Attached 12 7.75 Non-curling Free 22…

Q: Suppose IQ scores were obtained for 20 randomly selected sets of couples. The 20 pairs of…

A: x¯=96.76 y¯=96 r=0.925 P-value=0.000 and    y^=-10.44+1.1x

Q: In your own words, carefully explain the meanings of the following terms. (a) point estimate O The…

A: The parameter is the value that explains the population. The statistic is the value that explains…

Q: sider the following data for a dependent variable y and two independent variables, #1 and 2. x1 30…

A: given y^=-14.61+1.90x1+4.63x2 SST=15379.6, SSR=13898.3, sb1=0.2734, sb2=1.0892

Q: A poll of 2816 U.S. adults found that 1522 U.S. adults, or 54.048% regularly used Facebook as a news…

A: We have to find Confidence interval for population proportion.  Formula :  CI = p^ ± E Where , p^ is…

Q: Assume that the random variable X is normally distributed, with mean of 90 and standard deviation of…

A: 1] Mean =90 standard deviation =16 2] mean =116 standard deviation =20