Use CLT to find the µx and ox? Find the z-score that corresponds t- x =$265,000 Find the cumulative area that corresponds to the Z-score and calculate the probability. Interpret the results.

Q: Should post exercise meal consumption differ for athletes compared to casual" that has statistical…

A: Answer :- There are many possible statistical analyses that could be used to investigate this…

Q: A fair coin is tossed three times, and the events A and B are defined as shown below. Complete parts…

A: A fair coin is tossed 3 times, then its sample space is written as, Ω=HHH, HHT, HTH, HTT, THH, THT,…

Q: The finish times for marathon runners during a race are normally distributed with a mean of 195…

A: given data  normal distributionμ = 195 minutesσ = 25 minutesP(x<180 minutes) = ?

Q: What is the proportion of variance shared between the 2 variables? (How much of the variance in one…

A: Given The data is as follows: Mean 1 = 13.6 SD 1 = 2.26 Mean 2 = 102.7,SD= 11.36 Coefficient r =…

Q: =1 Consider an SRS {Yi³3;=, from the pdf fy(yit)=-(y-0) for YE[0,00). e What is an unbiased…

A:

Q: You're a sociologist studying whether grocery prices are different in the inner cities than they are…

A: Given data: SU IC 94.63 95.75 97.31 101.2 103.5 90.87 96.51 101 97.53 93.46 93.13…

Q: 9500 7900 10700 11200 11200 4200 9100 5200 10300 10700 9000 7700 4200 4200 13500 8600 8900 8700…

A: We have given data, 9500, 7900, 10700, 11200, 11200, 4200, 9100, 5200, 10300, 10700, 9000, 7700,…

Q: A marketing research firm wishes to compare the prices charged by two supermarket chains-Miller's…

A: Given that: For sample 1(Miller's store): x¯1=124.65s1=1.08n1=10 For sample 2(Albert's store):…

Q: About 10% of the population has a particular genetic mutation. 900 people are randomly selected.…

A: given data,about 10 % of the population has a perticular genetic mutation. p( genetic…

Q: USA Today reports that the average expenditure on Valentine's Day was expected to be $100.89. Do…

A: Given Male consumers Sample size, n1=44 Sample mean, x¯1=$138.99 Pop sd, σ1=$33   Female consumer…

Q: IQ Scores How many students have a score of at least 94? What is the class size of the given table?…

A: Introduction The frequency denotes the no. of times an observation has occurred.

Q: A chartered analyst can choose any one of three routes to get to work-A, B or C. The probabilities…

A: Let A denotes she choses route A, B denotes she chooses route B, C denotes she choses route C,  And…

Q: why are inference conditions not met?

A: The scatterplot with fitted line is given.

Q: A researcher uses an anonymous survey to track the number of salmon caught in Gaspe.  Based on a set…

A: Given information: Sample size, n=115 Sample mean, x¯=2.3

Q: 1. A sample point refers to the   Group of answer choices   set of all possible experimental…

A: A sample point refers to the

Q: Evaluate the following formula for x₁ = 97.66, X₂=97.46, H₁-H₂ = 0,0₁=0.84, 0₂ = 0.71, n₁ = 14, and…

A: here data  are given we have to answer the test statistics value of z is =?

Q: Pulmonary Disease Suppose a 1980 study was conducted whose purpose was to compare the indoor air…

A: Given information: x¯1=11.8, s1=7.4, n1=40x¯2=6.7, s2=2.8, n2=40α=0.05

Q: The z-scores of the test results of a sample of 43 students follow the T-distribution with 42…

A: The t-distribution is very useful probability distribution when the sample size is small and the…

Q: problem has provided us with the Spearman rank correlation of 0.679. Shouldn't I use that as my r…

A: Correlation: Analyzing the covariation between 2 or more variables is referred as correlation There…

Q: ty students were given a history exam. Their scores are shown below, sorted from smallest to large 6…

A: Given data indicates the scores of 60 students in a history exam.

Q: The lengths (in kilometers) of a random sample of 20 rivers on the South Island of New Zealand that…

A: Given data is80,32,68,64,76,56,32,121,35,51,177,48,72,64,56,80,108,40,37,64sample size(n)=20

Q: Assume that the selections are made with replacement. What is the probability that the 2 selected…

A:

Q: a. Construct the 95% confidence interval for the mean number of years of for lower class and middle…

A: Given that, The two populations are no. of years of education for lower-class and middle-class…

Q: Evaluate for x = 1, 3, 5, 7 Σ 2 χ3

A:

Q: The elbow plot depicts: a. The average between cluster difference by the total number of clusters…

A: Introduction The elbow plot is used in clustering which is an unsupervised ML algo.

Q: (a) What is the standard deviation of change in the exercise group? (Round your answer to three…

A: Given Information: Exercise group: Mean change = -0.33 95% confidence interval is (-1.32, 0.66).…

Q: a. Find P(E3) if P(E₁) = 0.1, P(E₂) = 0.2, P(E4) = 0.3, and P(E5) = 0.2. P(E3)= (Type an exact…

A: Given that : P(E1)=0.1 P(E2)=0.2 P(E3)=0.3 P(E5)=0.2 We have to find ,P(E3)=?

Q: 14. Which of the following would NOT produce the mean of a variable in Column A (starting at row 2…

A: 14) Answer:- We know that, The mean of a variable in Column A (starting at row 2 and ending at row…

Q: A randomly selected realtor's monthly commission (in thousands) can be estimated by a random…

A: by bartleby policy i can gives only 3 subparts answers at a time  A randomly selected realtor's…

Q: D Question 6 From a sample of 100 observations, you compute the average time to graduate from SDSU…

A: Given information n=100, sample variance=s2=20 , population mean μ=4  Sample mean x̄=4.8

Q: 4. Using the above data on Exercise No. 3, determine if there is significant difference in the…

A: 4) The objective is to determine whether there is significant difference in the perceived exertion…

Q: whether the following analysis involves a statistical test. If it does involve a statistical test,…

A: We have the given question.

Q: A population has a mean of 377 and a mode of 333.  If 17 points are added to each, which is a true…

A: It is given that the mean is 377 and mode is 333. Also, 17 points are added to each.

Q: The following stem-and-leaf chart gives the distance (in thousands of miles) driven during the past…

A: To find: Inter Quartile Range (IQR)

Q: A restaurant offers a $12 dinner special that has 4 choices for an appetizer, 10 choices for an…

A: Given:  Choice of appetizer=4  Choice of entree=10  Choice of Desserts= 3  Number of different meals…

Q: (Round calculated results to the hundredth (2 place to the right of beyond that unless otherwise…

A: The given data is as follows, Accept rate Grad rate 5 96 5 97 6 95 8 98 10 96 10 94…

Q: Sample medians target the value of the population median.  true or false?

A: Answer:-Given statement is "Sample medians target the value of the population median". We know that,…

Q: PROBLEM 1 During the first 13 weeks of the television season, the Saturday evening 8:00 PM to 9:00…

A: There are four different groups, a sample of 300 homes two weeks after a Saturday night schedule…

Q: State the null and alternative hypotheses for the situation described below for a statistical test.…

A: Given that  Testing to see if there is evidence that a correlation between height and salary is…

Q: (a) Construct a tree diagram summarising the probabilities of observing each adverse event in each…

A:

Q: In 2005 the percentage of airline ticket purchasers who actually arrive to take their flight is 88%.…

A: From given data we have : Let X measure the number of passengers p=0.88 n=47 x=54

Q: A survey of US adults found that 35% say their favorite sport is football. You randomly select 150…

A:

Q: A high school senior uses the Internet to get information on February temperatures in the town…

A: Given The data is as follows: The conversion formula is as follows: °F=95°C+32 Max…

Q: Use  the dataset HT_4337.xls. Using Excel, conduct a t-test (at the alpha = 0.05 significance level)…

A: The data is as follows, X1 98.83 99.12 100.29 104.35 99.86 99.85 100.54 98.58…

Q: Mr. Imperfecto teaches another math class.  This time he has 23 students take a test, the average…

A: Given that n=23

Q: Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 2900 grams and…

A: GivenBabies borm after gestation period of 32 to 35 weeks haveMean(μ)=2900standard…

Q: In a sample of 420 adults, 349 had children. Construct a 90% confidence interval for the true…

A: given data sample size (n) = 420favorable outcomes (x) = 34990% ci p.

Q: answers were wrong.

A: X Frequency 0 2 1 6 2 8 3 36 4 50 5 68 6 55 7 36 8 19 9 10 10 4

Q: Suppose in 2000, the science scores for female students had a mean of 146 with a standard deviation…

A: Mean(µ) = 146Standard deviations (σ) = 35X ~ N (µ, σ )= N(146, 35)

Q: Consider the data set below: Smoking status 0 1 0 1 O Boxplot Death status 0 0 1 1 O Pie chart What…

A: Given information: The data for smoking status, death status, and the number of cases are given.