In the Heartatk dataset, what type of data is the variable Diagnosis? A. qualitative B. continuous  C. discrete  D. binary

Q: A car insurance company claims that the average price of a new car is at least $17300. You randomly…

A: given data claim : μ ≥ 17300n = 40x¯ = 16412σ = 2360here populatrion sd is known so use z test.

Q: Q2 A study was conducted to test the effect of melatonin on female dementia patients. A random…

A: Given data:

Q: A biotechnology company produced 187 doses of somatropin, including 11 which were defective. Quality…

A: GivenNo.of doses produced=187No.of defective doses=11P(defective)=11187=117sample size(n)=13

Q: Albert and Billy are playing a dice game, but not with the usual dice. Albert's die has one "6" and…

A: We have given that  Albert's die has one "6" and five "4's" while Billy's die has two "5's" and four…

Q: In a study of speed dating, male subjects were asked to rate the attractiveness of their female…

A: Given The data is as follows: 5, 7, 2, 8, 5, 5, 6, 9, 7, 9, 4, 9 CL=0.99

Q: In time-series decomposition, seasonal factors are calculated by Multiple Choice O O O O O SFt (Y)…

A: Given that In time series decomposition, seasonal factors calculated by :

Q: Say that a simple random sample of size 15 will be drawn from a population comprised of N members,…

A: A simple random sample of size 15 will be drawn from a population comprised of N members, exactly…

Q: An actuary studied the likelihood that different types of drivers have at least one collision during…

A: Given data :  Type  percentage  collision  Teen 7 16 Young adult  17 5 Middle  aged 59 4…

Q: As discussed in the Wall Street Journal story, weighting is designed to adjust poll results to give…

A: Given information, As discussed in the Wall Street Journal story, weighting is designed to adjust…

Q: The age of professional racecar drivers is normally distributed with a mean of 38 and a standard…

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

Q: . Determine the 95% confidence interval for the difference in the mean number of months to repay the…

A: Let μ1 and μ2  be the two populations' mean number of months to repay the loan for individuals and…

Q: Let X~ Uniform(0, 1) and pe (0, 1) be a positive number. Derive the cumulative distribution function…

A: a) To find the cumulative distribution function (CDF) of Y=-1λlog(X), we need to calculate P(Y≤y)…

Q: Supermarket shoppers were observed and questioned immediately after putting an item in their cart.…

A: We have given thatx = 142n1 = 230p̂1 = x/n1 = 230/142 = 0.617Y = 185n2 = 270p̂2 = Y/n1 = 185/270 =…

Q: Find the mean of the following frequency table: X          f 2          1 3          5 4…

A: Answer  Given  X          f 2          1 3          5 4          1 5          1 6          0 7…

Q: The following data is a regression model where the U.S. Department of Transportation has tried to…

A: In this case, the independent variable is, the percentage of motorists under the age of 21 (x) and…

Q: ▸ Dashboard с YouTube MyOpenMath…

A: Also given the incomplete table is  we have to complete this table and also we have to find the…

Q: For a population with a mean of 75 and a standard deviation of 4, find the Z Score for an X Score of…

A: Given,population mean(μ)=75population standard deviation(σ)=4Raw score(X)=73

Q: QUESTION 25 Which of the following would produce the widest confidence interval for u? 97%…

A: Since we know that the confidence interval for population mean is given by x̅  ±…

Q: Determine the critical value for a left tailed test of a population mean at the a= 0.01 level of…

A: The population mean is μ and the test is left tailed.

Q: Researchers randomly selected 50 males between the ages of 25 and 44 years to participate in a…

A: The given 95% confidence interval for the proportion of all males between 25 and 44 years old with…

Q: The business college computing center wants to determine the proportion of business students who…

A: Given that: Test statistic, z=2.5

Q: Fatema wants to estimate the mean time spent on social media platforms per day, by ZU students. She…

A: Here we have to estimate confidence interval for the population mean

Q: SAT scores in one state is normally distributed with a mean of 1532 and a standard deviation of 200…

A: given data, normal distributionμ=1532σ=200n=50we have to find out the given probabilties.

Q: Suppose your manager indicates that for a normally distributed data set you are analyzing, your…

A: Answer  Given data is, your company wants data points between z=−0.9 and z=0.9 standard deviations…

Q: A criminal psychologist is interested in whether individuals in high power corporate positions are…

A: The question is about ANOVA Given : Total no. of groups ( k ) = 3 No. of individuals under group 1 =…

Q: Claim: A Frosted Fruits cereal box contains more than 16 ounces of cereal. A random sample of 43…

A: Given Information: Sample size n=43 Sample mean x¯=16.43 Population standard deviation σ=2.08…

Q: You suspect that a new birth control pill affects blood pressure given its chemical makeup.  You…

A: The question is about hypo. testing Given :   To find : The new birth control pill affects blood…

Q: An insurer issued a large number of policies to people age 50. Each policy is a 30-year endowment…

A: This question is about calculating the profit or loss of a group of policies issued by an insurer to…

Q: An analytics company provided demographic information about US Spotify users. In 2021, it  was known…

A: a) The given value of 26% is a parameter. The symbol for this value is p. b) You can use the…

Q: A new weight-watching company, Weight Reducers International, advertises that those who join will…

A: Answer  By using the given data:  10 pounds the first two weeks with population standard deviation…

Q: Use the given shaded area (0.2649) in the middle of the standard normal distribution and the given…

A: given data standard normal distributionZ~N(0,1)note : area under standard normal curve represents…

Q: 4. The SAT scores of the incoming freshmen class are normally distributed with a mean of 1100 and…

A: Obtain the Z-score for the random variable X equals 1250. The Z-score for the random variable X…

Q: A random variable is not normally distributed, but it is mound shaped. It has a mean of 18 and a…

A: GivenMean(μ)=18standard deviation(σ)=2sample size(n)=40

Q: Find the critical value to f

A:

Q: to Facebook's self-reported statistics, the average Facebook user has 130 Facebook friends. For a…

A: We have given that  Population mean =130 Sample size n =45

Q: Dean made a statistical estimation of the cost-output relationship for a shoe store. The data for…

A: Given data: x y 4.5 3 7 3.3 9 3.4 10 3.5 15 4.5 20 5.5 33 7.5 50 12 x is the…

Q: Find the critical value to for the confidence level c = 0.99 and sample size n = 9. Click the icon…

A:

Q: A company prices its tornado insurance using the following assumptions: • In any calendar year,…

A: Given that: Success probability, p=0.14 Sample size, n=14

Q: Show your answers in the box below. Note: You do not have to show the steps, answers only is good!…

A: Answer  Given 1 1 2 3 4 5 6 7 12 15 20 22 23 25 27 31 40 minimum value = 1 Maximum value =40…

Q: In a test of the effectiveness of garlic for lowering cholesterol, 42 subjects were treated with…

A: From given : n=42x¯=5.3s=18.5

Q: Which statement accurately reflects qualitative and quantitative data? a.Height is qualitative and…

A:

Q: Suppose an internet marketing company wants to determine the current percentage of customers who…

A: Given that  Margin of error =E =2%=0.02 90% confidence level.

Q: A manufacturing company regularly conducts quality control checks at specified periods on the…

A: The question is about binomial distribution Given : Failure rate for LED light bulbs ( p ) = 0.04…

Q: What is the correlation between average monthly rainfall and crop yield in a given region over the…

A: 1).What is the correlation between average monthly rainfall and crop yield in a given region over…

Q: SAT scores in one state is normally distributed with a mean of 1532 and a standard deviation of 200.…

A: Given that, The random variable X is SAT scores in one state. It is normally distributed.…

Q: A particular fruit's weights are normally distributed, with a mean of 323 grams and a standard…

A: given data, normal distributionμ=323σ=5we have to find out the given probabilties.

Q: A researcher wants to test the claim of an online article that 78% of Americans eat healthy each…

A:

Q: 1. Eight horses are entered in a race in which a first, second, and third prize will be awarded.…

A: given data 8 horses are entered in a race in shich first,second and third prize will be awarded.…

Q: Confirm test results in part (c) using JASP. Note: All JASP input files and output  tables should be…

A: First Enter the data in Excel as shown below.

Q: Determine the critical value for a left tailed test of a population mean at the a= 0.01 level of…

A: The question is about critical value Given : Level of signif. ( a ) = 0.01 Sample size ( n ) = 9…