(Problems 6-10) An investigator polls a representative sample of common cold sufferers, asking them to estimate the number of hours of physical discomfort caused by their most recent cold. Their estimates approximate a normal curve with a mean of 83 hours and a standard deviation of 20 hour. 6. What percentage of sufferers estimate that their colds lasted for longer than forty-eight hours? 7. What percentage suffered for fewer than 61 hours? 8. What percentage suffered for between one and three days? 9. Inverse Normal Distribution: What is the estimated number of hours for the shortest-suffering 10 percent?

Q: Question 12

A: Given: Value of the trading card = $155 (in 2009) Each year increases by = 4.8% = 0.048 To…

Q: You want to see if it makes a difference which lane to be in when there is traffic. You randomly…

A: 1. The expected frequencies are, Outcome Frequency Expected frequency Lane 1 88 328×14=82…

Q: 9. If we were to repeat the process in # 1 -6 for n=3 dice, there would be 216 possible outcomes…

A: Given: n=3 dice μX¯=3.5 σX¯=1.713

Q: Do dominant and subordinate individuals differ in the means of giggle spectral CV?

A: For Group : Dominant Individual Standard Deviation, s: 0.05410 Count, N: 9 Sum, Σx: 2.755…

Q: An interesting research question is an effect, if any, that different types of teaching formats have…

A: Data for hybrid students-sample 1The sample size The sample mean The sample standard deviation Data…

Q: 5.

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Q: 12 I+(-1'] = i=1

A:

Q: Question 26

A: We have given a graph which represent the derivative f' of some function f. we have to draw the…

Q: 60. f -1 | f' f" -1

A: According to the sign chart, we have

Q: Question 7

A: 7) (a) The given parametric equations are  x=t+2 and y=t2-1 and t∈-3, 3. Sketch the graph of the…

Q: Question 5

A: From the provided information, Number of trials (n) = 100 Probability of getting tails (p) = 0.5

Q: L43 L2) De termine a para metriaation for right circular cone with vertex and slant height S.…

A: To write the parametrization of a right circular cone: z=x2+y2 xz trace, z=x2+0  =x2z=x yz trace,…

Q: Question 12

A: (12)(a) Given, f(x)=2x-6 such that f:ℝ→ℝThe function f(x) is a linear function. The f(x) is defined…

Q: answer question D

A:

Q: Question 12

A: We are given the following shapes. For (a), We need to find the volume of the box as a function of…

Q: 1. Suppose a sample of three random variables X1, X2, X3 that are independent and identically…

A: Let's solve each part:a)To find the density function of the median of the sample, let's first find…

Q: Question 20

A: Given Data :  General form of the sequence an=2(an-1)+1, a1=4 To Find : The first four terms of the…

Q: 2 2 of

A: Please see the answer below.

Q: part c pls

A: C) Given that r(u,v)=(u cos v, u sin v, v) with 1,2×0,2π I(x,y,z)=(0,0,x2+y2+z2) Here x=u cos v, y=…

Q: Question 54

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Q: Question 11

A: