5

Here are summary statistics for randomly selected weights of newborn girls: n = 234,X= 29.6 hg; $ = 6 hg: Construct confidence interval estimate of the mean: Use 99...

Question

Here are summary statistics for randomly selected weights of newborn girls: n = 234,X= 29.6 hg; $ = 6 hg: Construct confidence interval estimate of the mean: Use 9990 confidence evel Are these results very different from the confidence interval 28 hg < p < 31.5 hg with only 12 sample values X = 29.8 hg and $ = 1.9 hg?What is the confidence interval for the population mean p?hg < p < Lhg (Round to one decimal place as needed )Are the results between the two confidence intervals very d

Here are summary statistics for randomly selected weights of newborn girls: n = 234,X= 29.6 hg; $ = 6 hg: Construct confidence interval estimate of the mean: Use 9990 confidence evel Are these results very different from the confidence interval 28 hg < p < 31.5 hg with only 12 sample values X = 29.8 hg and $ = 1.9 hg? What is the confidence interval for the population mean p? hg < p < Lhg (Round to one decimal place as needed ) Are the results between the two confidence intervals very different? Yes, because the confidence interval limits are not similar because each confidence interva contains the mean of the other confidence interval: Yes, because one confidence interval does not contain the mean of the other confidence interval No, because the confidence interva limits are similar



Answers

Construct the confidence interval estimate of the mean. Use these summary statistics for birth weights of 195 boys: $\bar{x}=32.7 \mathrm{hg}, s=6.6 \mathrm{hg}$ (based on Data Set 4 "Births" in Appendix B). Use a $95 \%$ confidence Icvel. Are the results very different from those found in Exercise $9 ?$ Does it appear that boys and girls have very different birth weights?

All right. In this case, let's move on to the next question. Over here we see that here are the summary statistics for randomly selected weights of newborn girls and is 205 and means my sample size is large enough. And my sample standard deviation is 7.1, which means I do not have my populations and innovation. So I'll have to use the distribution. Probably, Let's see my sample mean is given and my confidence level is given. So what will be the value of P Alfa by two in this case, the Alfa by 21.97 to 1.972 Based on the degree of freedom and the confidence level that we have, degree of freedom is 204 In this case, what is myself away to? It is 1.961 point 96 But we are going to use the tea distribution in this case

This problem deals with baby to have extremely low birth weights, and what I know is that I have a sample size of 219 Children. I know that the mean wait is equal to 810 grams, and it stated that the sample mean is an unknown bias estimator of the mean weight in the population. So if my sample mean weight is an unbiased estimator in the mean weight of the population, what that means is that all possible samples of size to 19 the mean wait will equal to the mean weight of the population the mean weight of the sample well equal to the mean weight of the population. So that's going to be big.

This question, we are told the birth weight of full term babies are normally distributed With a mean of £7.125 and a standard deviation of £1.29. And were asked for the probability that a randomly selected newborn will be less than £5.5, which is the definition of prematurity. So we have probably detects less than .55, the same as probable, dizzy, less than 5.5 -7.125 or were 1.29. That is probability easy, less than -1.26. You're supposed to find 1038 from our table.

Now This time we are going to solve the exercise nine again. But this time Sigma is known to be 7.1. So we are going to use the Zahra statistic this time E or the margin of error. Or let me do one thing. This is going to be X bar. X bar is the mean and what was the mean In that case, it waas 30.4. So I can write this as 30.4 directly 30.4 plus minus Zed Alfa by Do this is going to be Z off Alfa by two now What was Alfa there? Okay, let's see what Alfa there Waas Alfa was 95% confidence interval which means my Alfa 0.5 Scialfa by to his zero point 0 to 5. My Alfa by two is 0.25 and this is 1.96 Z Alfa by two is 1.96 This one is going to be 1.96 into sigma Now. This time I know Sigma So Sigma is going to be 7.1. This is going to be 7.1 upon route and upon route and okay, now what is going to be my development? It is going to be 30.4 minus 1.96 Just a moment. 30.4 minus 1.96 into seven point one. Divided by root off to 05 This time I have 205 samples. A group of 205 And this is 29.4 to 8. 29.4 to 8. And the other one The other one comes out to be 31.371 39. Sorry. 30. What was this? 31.371 31 0.371 This is my confidence in double.


Similar Solved Questions

5 answers
Wrench is used to turn pipe as shown in the below diagram: force F= 150 Nis applied at angle 0 = 20"_ Lx 200 mm Relative to the axis origin at the pipe center, the force is applied at a point: =-25mMUsing the formula T = FxF to determine the torque applied to the pipe.
wrench is used to turn pipe as shown in the below diagram: force F= 150 Nis applied at angle 0 = 20"_ Lx 200 mm Relative to the axis origin at the pipe center, the force is applied at a point: =-25mM Using the formula T = FxF to determine the torque applied to the pipe....
1 answers
EeR_ E + $ . ~h 2 E e=mex E, LYxSe,xee Xypese 16 . E < IR mzinf E + $ 6 m=rur EC m& E,Vxe E,mzx) Mae 1, E c IR € + $ AAku 4 E _ LzandeJ alae . & -Eate:e--X,xe Sed - E /4 Ldd Lelae CEx: E =Lo; irf6-E) =-spe 3) ~ [ = L-3,0)) 12_ 1 L6; 3 N-7dcwory { benndel Cim Jelwwe , 6 IR ch XtaL m =b; 8653 / 'r & j-1,23.., ,x~ Shav cenespne
EeR_ E + $ . ~h 2 E e=mex E, LYxSe,xee Xypese 16 . E < IR mzinf E + $ 6 m=rur EC m& E,Vxe E,mzx) Mae 1, E c IR € + $ AAku 4 E _ LzandeJ alae . & -Eate:e--X,xe Sed - E /4 Ldd Lelae CEx: E =Lo; irf6-E) =-spe 3) ~ [ = L-3,0)) 12_ 1 L6; 3 N-7dcwory { benndel Cim Jelwwe , 6 IR ch XtaL m ...
5 answers
Evaluate the integral. 1/2 cos2(8) de
Evaluate the integral. 1/2 cos2(8) de...
5 answers
For the following exercises; draw graph that satisfies specifications for the domain x =[-3.31, the given The function does not have to be continuous or differentiable 216. f(r) > 0. f'(r) > 0 Ove= x>1,-3 <x < 0, f' (x) = 0 over 0 < x < |217. f' (x) > 0 over 1>2 -3 <. < -1,f" (x) <0 over _1 < x < 2, f"(x) < 0 for allOVel218. f"(x) < 0 21<x < 1, f"(1) > 0. 3 <.<-[.1<1<} local maximum at + = 0
For the following exercises; draw graph that satisfies specifications for the domain x =[-3.31, the given The function does not have to be continuous or differentiable 216. f(r) > 0. f'(r) > 0 Ove= x>1,-3 <x < 0, f' (x) = 0 over 0 < x < | 217. f' (x) > 0 over ...
5 answers
Draw a energy level diagram showing absorption, vibrational relaxation and fluorescence. Label the ener levels and transitions appropriately. (2 pts)
Draw a energy level diagram showing absorption, vibrational relaxation and fluorescence. Label the ener levels and transitions appropriately. (2 pts)...
5 answers
Ex) Whal {s 4Le Nk 0t a solu Gow of Hocl 0,S5( 1 of ka =3.Sx 10-8 1.224 and 13S moks of Noq ?
Ex) Whal {s 4Le Nk 0t a solu Gow of Hocl 0,S5( 1 of ka =3.Sx 10-8 1.224 and 13S moks of Noq ?...
5 answers
Let f(z) = 31 2 and g() = 22. Evaluate (gf)(-1).a. 0b. 25c -5d. 1
Let f(z) = 31 2 and g() = 22. Evaluate (gf)(-1). a. 0 b. 25 c -5 d. 1...
5 answers
CoordinatesThevectors 0;=(0,4.2).U, = (1.-1,2),u; (5,1, 2) } form an orthogonal basts for RJ In particular; every vertor V € R'can be expressed as & linear combination V = 3,0, azu; + a3U3for some scalars 81.82,83 If we exarers (1,,0, 1Jin this way; what is the value of a,?and submi For keybourd nariganol; the upydown nrtow kEys t0 sclect Jn Jnnwer1/61/61/3V212
Coordinates Thevectors 0;=(0,4.2).U, = (1.-1,2),u; (5,1, 2) } form an orthogonal basts for RJ In particular; every vertor V € R'can be expressed as & linear combination V = 3,0, azu; + a3U3for some scalars 81.82,83 If we exarers (1,,0, 1Jin this way; what is the value of a,? and submi...
1 answers
Rotation fields Find the net outward flux of the field $\mathbf{F}=\langle z-y, x-z, y-x\rangle$ across the boundary of the cube $\{(x, y, z):|x| \leq 1,|y| \leq 1$ $|z| \leq 1\}$
Rotation fields Find the net outward flux of the field $\mathbf{F}=\langle z-y, x-z, y-x\rangle$ across the boundary of the cube $\{(x, y, z):|x| \leq 1,|y| \leq 1$ $|z| \leq 1\}$...
5 answers
What is viewed as the "first line of defense" for the humanbody?A. innate immune systemB. adaptive immune systemC. phagocytesD. antibodies
What is viewed as the "first line of defense" for the human body? A. innate immune system B. adaptive immune system C. phagocytes D. antibodies...
5 answers
Use the moment-generating function for a binomial R.V. X:M(t)[(1 − p) + pet ] n to find the mean µ and variance σ 2 of abinomial R.V.
Use the moment-generating function for a binomial R.V. X: M(t)[(1 − p) + pet ] n to find the mean µ and variance σ 2 of a binomial R.V....
5 answers
KrarmanunnmCthlMendarueanCCLCEIEAALEIDLalat Tate=0 @l157 4ined: 0 Juse E FG eu ememtelIdtdoeaeeu br [amyheF AAln
Krarmanunnm Ct hl Mendar uean CCLCEIEAALEID Lalat Tate= 0 @l157 4ined: 0 Juse E FG eu ememtel Idtdo eaeeu br [amyhe F AAln...
5 answers
Find for the following: dxJ=Tx'_6x'+Sx"+]b) y=(r-3)-y= 1+7
Find for the following: dx J=Tx'_6x'+Sx"+] b) y=(r-3)- y= 1+7...
5 answers
2 Duanm 1 WI This W 1 1 1 s enhght V 1 welgnt I< 2.27 { 4,53 494 nunomens Tandero 01 'standard deviations Iedn bent blnnkI 1eac11 high 3 Relgnt Tor M 11 1
2 Duanm 1 WI This W 1 1 1 s enhght V 1 welgnt I< 2.27 { 4,53 494 nunomens Tandero 01 'standard deviations I edn bent blnnkI 1 eac 1 1 high 3 Relgnt Tor M 1 1 1...
5 answers
[H/1 Points]DETAILSLARCALC9 2.2.107 ,MY NOTES ASK YOur TEACHERPRACTICE ANOTHERThe volume 0 cube with sides ot Iangth $ I6 given by V = $' Find the rate & change o( the volumu with respect to when cenumelers "(0(-71 Polnts]DETAILSLARCALC9 2.2.108.MY NOTESASK YOUR TEACHERPRACTICE ANOTHERAne Drea 0i squarg wilh SIdos of length $ Qlven bv 4 = v' Find tha rate 0l change ot the Area with rerpect t0 wncn mcten A(6) J/m
[H/1 Points] DETAILS LARCALC9 2.2.107 , MY NOTES ASK YOur TEACHER PRACTICE ANOTHER The volume 0 cube with sides ot Iangth $ I6 given by V = $' Find the rate & change o( the volumu with respect to when cenumelers "(0 (-71 Polnts] DETAILS LARCALC9 2.2.108. MY NOTES ASK YOUR TEACHER PRAC...

-- 0.020581--