**Introductory Statistics for the Sciences** **Test 3** *Assume quantitative variables are normally distributed* --- 1. Recent recommendations suggest 60 minutes of physical activity per day. A sample of 74 adults in a study of cardiovascular risk factors report exercising a mean of 48 minutes per day with a standard deviation of 19 minutes. Based on the sample data, is the physical activity statistically less than recommended? Run the appropriate test at a 1% level of significance. - \( H_0: \) - \( H_1: \) - Rejection Region: - Test Statistic: - Decision:

Q: Show that the following relationship on the simple linear regression class notebook is true: i=1

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Q: )  Which binomial probability is represented on the screen below? Binompdf (8, . 3, 2)          ...

A: The given binomial probability is Binompdf(8,0.3,2).

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A: Here, µ = 31 and σ = 13.

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A: Given: The stratified sampling is explained as below.

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Q: 1. The accompanying data on IQ for first-graders at a university lab school 82 96 99 102 103 103 106...

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A: Given: n=16,μ=100,σ=36,x=115,s=24  

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A: A hospital is trying to cut down on emergency room wait times. It is interested in the amount of tim...

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A: Given that P(Todd trains)=0.30 P(Tiff trains)=0.70 P(female| Todd) =0.55 P(female| Tiff) =0.65  

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A:

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A: The power of a test is the probability of making a correct decision. Mathematically, it is calculate...

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A: Consider that μ defines the population mean pulse rate of adult males.

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A: Given that, Private nonprofit four-year colleges charge, on average, $26,329 per year in tuition and...

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A: 3. Given f(x)=3x2, 0<x<1 Consider, P(X<13)=∫0133x2dx               =3x3301/3               ...

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A: Given data: Restaurant A: Number of accurate orders = 268 Number of orders that are not accurate = 7...

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A: Given information: The number of cards in a deck is 52. The number of cards in the players hand is 4...

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Q: The Powerball lottery jackpot has a winning probability of 1/189,000,000.  If you only consider the ...

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A: The provided information are: Population meanμ=6Population standard deviationσ=10Sample size (n) = 3...

Q: The amount of time that people spend at Grover Hot Springs is normally distributed with a mean of 67...

A: From the given information, Mean = 67 and standard deviation =16.

Q: A marketing company.as doing a study on food delivery orders The following table shows the number or...

A: The general formula for expected value is, Ex=∑fx∑f  

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Q: If the standard deviation of the whole national accounting examination is 30 for this year, how larg...

A: Solution: From the given information, confidence level is 0.99, σ=0.30 and E=5.

Q: A game of chance costs $5 to play. The game requires the player to roll a fair six-sided die until h...

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