which value of л would it be safe to assume the sampling distribution of Y is approximately normal?

Q: The table shows the number of absences, x, in a class and the final exam grade, y, for seven…

A: Given n=7 x=5

Q: Heart Rates For a certain group of individuals, the average heart rate is 74 beats per minute.…

A: Given,mean(μ)=74standard deviation(σ)=4

Q: 2. Use Slovin's Formula to compute for the value of n (number of samples) needed if the percentage…

A: Sampling is the technique which used to take sample from the population. Sample is the subset of…

Q: The lengths and weights of a zoo's pygmy shrews were recorded during their annual health check.…

A:

Q: 8. Suppose the price of a stock is normally distributed with mean µ and variance o² = 4. In 5 days…

A: Formula : CI=x̄ ± ME

Q: For a standard normal distribution, find: P(-0.76 < z < -0.4)

A: Given P(-0.76 &lt; z &lt; -0.4)

Q: Approximately what percent of students own somewhere between 30 and 50 CDs? O 50% O 4% O 20% O 25%

A: It is given that the statistical five number of summary of the number of CDs owned as reported by…

Q: ssr incorrect

A: Sum of regression is used to explain the total variation occur in the data set. It is denoted as…

Q: Rick operates a concession stand serving Iced Tea at the Los Angeles County Fair.  Ben is the only…

A:

Q: The Value of Pi The ratio of the circumference of a circle to its diameter is known as (pi). The…

A:

Q: Suppose that the amount of time that students spend studying in the library in one sitting is…

A:

Q: Suppose Z follows the standard normal distribution. Use the calculator provided, or this table, to…

A:

Q: The results of a study showed that heterosexual​ women, during​ ovulation, were significantly better…

A: Given Population proportion=0.67 n=100

Q: calculate the standard deviation for 3 plants

A:

Q: Determine whether the variable is qualitative or quantitative. Explain your reasoning. Age of car…

A: A variable is said to be quantitative if it can be measured numerically. A variable is said to be…

Q: Slovin's Formula ( 1. Solve for the value of n given that the total population is 7500 and the…

A: Note: As per guidelines we are supposed to solve only one question at a time. Kindly repost the…

Q: Suppose a random sample of 1012 athletes from the college are asked what their major is. The table…

A: Given data: Total count = 1012 To fill  the expected frequency

Q: 14. Refer to the box-and-whisker plot below that shows the results of an aptitude test given to…

A:

Q: Top-Paid CEOs The data shown are the total compensation (in millions of dollars) for the 27 top-paid…

A:

Q: A correlation of r = – 0.95 is stronger than r = + 0.70.

A: Given that  correlation r=-0.95 and r=0.70

Q: Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If…

A:

Q: An ANOVA would help establish a cause-effect relationship true or false?

A: Here we have to answer, an ANOVA would help establish a cause effect relationship.

Q: 6. Let {Xn, n N} be a sequence of independent random variables exponentially distributed with param-…

A: We have two law of large numbers: 1) Weak law of large numbers:  Suppose that the first moment E(x)…

Q: Perform the test of hypothesis on the following scenarios. A brand of powdered milk is advertised as…

A: The question is about hypo. testing for a popl. mean Given : Popl. mean of net weight of milk cans (…

Q: Below are pilot data from a phase one randomized clinical trial where patients with schizophrenia…

A: The question is about ANOVA Given :

Q: The lengths and weights of a zoo's pygmy shrews were recorded during their annual Length (mm) 95 81…

A: The given data is x y 95 5.4 83 4.5 91 5 82 1.1 75 3.7 62 2.6 79 4.5 63 3.1 81…

Q: Sketch the graph that shows Zo.44 and then determine Zo.44- Click here to view page 1 of the normal…

A: Solution-: We want to sketch the graph that shows Z0.44 and then determine Z0.44=?

Q: Ages of Gamblers The mean age of a random sample of 23 people who were playing the slot machines is…

A:

Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…

A: It is given that  Sample mean = 70.9 Sample standard deviation = 5.4 Sample size = 28 Confidence…

Q: Determine whether the variable is qualitative or quantitative. Explain your reasoning. Color of car…

A: Solution-: Determine whether the variable is qualitative or quantitative. Color of car driven

Q: The lengths and weights of a zoo's pygmy shrews were recorded during their annual health chec Length…

A: Obtain the value of the spearman’s rank correlation coefficient. The value of the spearman’s rank…

Q: Low-income students tend to have lower attendance rates and lower math test scores than their…

A: For the given data Find the slope for the equation of the least squares regression line= ? Find the…

Q: The lengths and weights of a zoo's pygmy shrews were recorded during their annual health check.…

A:

Q: Young's modulus is a quantitative measure of stiffness of an elastic material. Suppose that for…

A: Given: Mean = 70 Gpa Standard deviation = 1.6 Gpa

Q: 18, 12, 14, 15, 13, 14, 12, 17, 16, 15 solve for mode

A:

Q: provide an interpretation of the the plots presented here. what do you learn about the data…

A: From the given plot,  There are 7 party affiliations: SD, D, DL, I, RL, R and SR. There are two…

Q: of the index according to the Mars Weigworth is

A:

Q: The table summarizes results from 986 pedestrian deaths that were caused by automobile accidents.…

A:

Q: You find a coin in the street and are flipping it while walking away. You happen to look at the…

A: Probability: A probability is a method to assume the chances of one incident's happening in a trial.…

Q: interval estimate may or may not contain the value of the parameter being estimated B. The…

A: For an interval estimate, It is possible that the interval estimate may or may not contain the value…

Q: Calculate the standard deviation and variance of the sample data shown, to two decimal places x…

A: The following data has been provided: 20.7,15.2,2.5,3.8,17.9 The sample size is n=5

Q: ur a For a recent 10k run, the finishers are normally distributed with mean 63 minutes and standard…

A:

Q: A researcher is interested in finding a 95% confidence interval for the mean number of times per day…

A:

Q: Absorption of Moisture in Concrete Aggregates Aggregate: 1 2 3 4 5 551 595 639 417 563 457 580 615…

A: We need to test, the null and alternative hypotheses: Ho : the average absorption of moisture in…

Q: 13. Simplify 6ª ● 6%. A. 6a+v B. 6av C. 36a+v D. 36av

A: We have to simplify 6a. 6v

Q: Research Question: Is the average number of people who visit the ER every day decreasing? It is…

A: It is given that: μ0claimed value=125σ population SD=35s sample SD=25x¯sample mean=120n sample…

Q: The following table shows the time a student spends studying for a test in hours and the grade they…

A: Regression equation explains the relationship between the independent and dependent variable. It…

Q: An economist at the Florida Department of Labor and Employment needs to estimate the unemployment…

A: An economist at the Florida Department of Labor and Employment needs to estimate the unemployment…

Q: Find the S.D of the following data: 1216, 1374, 1167, 1232, 1407, 1453, 1202, 1372, 1278, 1141,…

A: Given data is 1216, 1374, 1167, 1232, 1407, 1453, 1202, 1372, 1278, 1141, 1221, 1329

Q: The quality of the orange juice produced by a certain manufacturer is constantly monitored. Data…

A: In the given problem we have given that, in a simple linear regression to predict the sweetness​ (y)…