Page < N of 2 ZOOM w survey was done on the average bite radius of a shark, how many sharks should they nd release if they want to be 95% confident and want to make sure the error is less than 0.2 Assume the true standard deviation is 5 inches.

Q: 2. The heights of a pediatrician's 200 three-year-old females are normally distributed with mean…

A: given data normal distribution μ = 37.82σ = 3.25find 90th percentile = ?

Q: You are given the sample mean and the population standard deviation. Use this information to…

A: We have given that.Sample size (n) = 44Sample mean (x̅) = 117.38Standard deviations (σ) = 11.18

Q: What type of level of measurement is a sleep diary (nominal, ordinal, interval, ratio)? 2. What…

A: To identify the correct level of measurement.

Q: John threw a dart at the dart board.  He got a bull's-eye 8 time out of 30.  This is an example of…

A: Solution-: John threw a dart at the dart board.  He got a bull's-eye 8 time out of 30.  This is an…

Q: Suppose the average life of kiwi phones is 4.66 years with standard deviation 1.05 years. Let X…

A: Given that.   X~N( μ , ?)   μ=4.66     , ?=1.05  , n=40   Z-score =( x - μ )/?

Q: What gas mileage represents the first quartile? type your answer... mpg Describe the gas mileage of…

A: The mean is 14 mpg and standard deviation is 4 mpg.

Q: 5. The following are the packaging times from two shipping machines (in seconds per shipment):…

A: The data shows the packaging times for two shipping machines.

Q: Compute a 95% confidence interval?       Hypothesis:  Students spend an average of 35 hours per…

A: Followings are the Explanation of the question Use the One sample Z test Confidence interval…

Q: An analyst tested a forecasting model and identified the following performance metrics. What do the…

A: Forecasting method is the estimation of future indices from the present data. Ideally, the…

Q: q1)Define relative frequency and percentage frequency distributions.   q2)How wide should classes…

A: Hi thank  you posting  a question  , since  you have posted multiple  question  as pee our policy…

Q: Provide an appropriate response. Use the Standard Normal Table to find the probability. IQ test…

A: Z is known as standard normal variable and it's value is obtained using standard Normal table.

Q: Solve the problem. 35) 30 randomly picked people were asked if they rented or owned their own home,…

A: Given : Sample size n = 30  Number of cases x = 30

Q: Randomly selected birth records were obtained, and categorized as listed in the table to the right.…

A: Given that We have to conduct hypothesis testing for the claim that the birth occurs with equal…

Q: Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion but the nu…

A: Given that  Sample size n =100 Sample proportion p^=45%=0.45

Q: etermine whether the graph can represent a normal curve. If it cannot, explain why. Q OA. The graph…

A: Objective of this question is that which option is the correct choice.

Q: A Make a claim about the fit of the model for Model #1. B Make a claim about the significance,…

A: Since there are multiple sub-parts, as per the honor code the first three sub-parts will be solved.…

Q: In the same group of 20 students, GPA was measured before the semester and after the semester. What…

A: It is given that GPA was measured before the semester and after the semester.

Q: The results of a certain intelligence quotient (IQ) test are distributed according to the normal…

A: Let the IQ sore is denoted by X. X~μ=100, σ=16 The Maclaurin series is ex=1+x+x22!+...∞. The…

Q: John runs a computer software store. Yesterday he counted 133 people who walked by the store, 66 of…

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

Q: A newsletter publisher believes that over 33% of their readers own a laptop. For marketing purposes,…

A: Given that  Claim: Over 33% of their readers own a laptop.  Decision : Reject the null hypothesis.

Q: High levels of cholesterol in the blood increase the risk of heart disease. For 14-year-ole boys,…

A: given data,normal distribution μ=170σ=30 we have to find out the given probabilities

Q: Exhibit 15-6 Below you are given a partial Excel output based on a sample of 16 observations. ANOVA…

A: Since we know that test statistic is given by t = β1/SE(β1)

Q: A media statistics agency reports that the mean number of televisions in a household in a particular…

A: We have given that  Mean(µ) = 2.24Standard deviations (σ) = 1.38

Q: Suppose you have a group of fourth graders and a group of eighth graders, and you want to compare…

A: We have to determine which test use for given situation.

Q: Compute the critical value Zα/2 that corresponds to a 91% level of confidence. Click here to view…

A: Confidence level (c) = 91% = 0.91Significance level (α) = 1- 0.91 = 0.09

Q: Omitting a relevant variable(s) from a model dangerous than including an irrelevant variable(s). Do…

A: The ordinary least squares regression gives unbiased estimates with smallest variance of all…

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: A real estate agent collected prices of vacation cottages (in thousands of dollars) and how many…

A: Regression equation is used for prediction analysis. It provide the relationship between the…

Q: A local pizza company ran a taste test with 3 different sauce recipes. The study consisted of 60…

A: It is given that a local pizza company ran a taste test with 3 different sauce recipes.

Q: Researchers wanted to test the happiness score across 3 time-points   Happiness 1 Happiness 2…

A: Given data: Happiness 1 Happiness 2 Happiness  3 22 38 42 31 40 50 20…

Q: he following table presents the manufacturer’s suggested retail price (in $1000s) for base models…

A: Given data: 35.3 37.3 41.1 43.1 40.0 45.0 47.0 53.1 55.1 46.8 51.4 53.4 57.7 64.0 51.2 53.2 86.5…

Q: You are the owner of Fast Break, a popular local place that sells drinks, snacks, and sandwiches.…

A: Given information: The data is given. Find: Fit simple linear regression model.   Formula: The…

Q: A AR(1) model is estimated, the R^2 is 50% the TSS for the y variable is 100. What is the SSE for…

A: Given that, The model is AR(1). R2 = 50% = 0.50 TSS = total sum of squares = 100 To find SSE for the…

Q: A certain insecticide kills 80% of all insects in laboratory experiments. A sample of 12 insects is…

A: Let p be the probability that insect will die. Given that p = 0.80 Let X be the number of insects…

Q: A magazine reported that 47% of Canadians are confident they will take a winter vacation at some…

A: Given that  Sample size n =65 Favorable cases x =27 Sample proportion p^=x/n  =27/65 =0.4154 NOTE:-…

Q: A survey of schools of business indicates that 16% of the faculty positions in schools of business…

A: Given that  Sample size n =300 Favorable cases x =51 Sample proportion p^=x/n =51/300 =0.17

Q: What percentage of the variation in y can be explained by the corresponding variation in x and the…

A: It is given that X be the elevation for an archaeological site in the southwestern United States Y…

Q: 7 etermine the null and alternative hypotheses. Choose the correct answer below. O A. Ho: Gender and…

A:

Q: What is the Null Hypothesis? What is the Alternative Hypothesis? explain/discuss your answer

A: Dependent Variable Foreign Direct Investment Independent Variable Political stability, corruption…

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: February 12, 2009 marked the 200th anniversary of Charles Darwin's birth. To celebrate, Gallup, a…

A: Note: According to Bartleby guidelines we can solve maximum of three subparts in a question and rest…

Q: The age at which men in United States marry for the first time follows the normal distribution with…

A: A continuous random variable X is said to follow Normal distribution with parameters μ and σ2 if its…

Q: Golf-course designers have become concerned that old courses are becoming obsolete since new…

A: Given Hypothesis: H0:μ=235 H1:μ&gt;235 Given information: sample size, n=188sample mean,…

Q: Conditions met? choose your answer... Model: price/gal= type your answer.... Predict the price of…

A: Given that, Dependent variable (y) = Price/gal Independent variable (x) = Year since 2000 Sample…

Q: Researchers wanted to test the happiness score across 3 time-points   Happiness 1 Happiness 2…

A: The data shows the happiness score across 3 time-points.

Q: Another company for commute lengths on a daily basis. If the mean commute time is 53 min deviation…

A: Given that  Mean = M = 53  Standard deviation = SD = 11.2 P(X &lt; A) = 15%

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: 14) The PDF of a random variable X is expressed by the quadratic function fx(x) = ax(1-x); for 0<x<…

A: f(x)=ax(1-x); 0&lt; x&lt; 1

Q: how do you find the mean, medium, mode, and range for december 2021 and 2022

A: year 2021 : 50 59 50 50 50 66 43 42 45 51 67 49 55 55 55 62 59 45 40 39 42 48 39 43 52 year…

Q: The mean cost of a five pound bag of shrimp is 40 dollars with a standard deviation of 8 dollars.…

A: GivenMean(μ)=40standard deviation(σ)=8sample size(n)=51