4. Suppose a new sample is chosen and you got the following estimated OLS line:predicted birthweight_in_oz = 120 3.5 dailycigarettes. What would be yourestimate of if you use weeklycigarettes (the average cigarettes smoked per weekor per 7 days) instead of dailycigarettes?а. -2.8b.-0.5с. -3.5d.- 24.5

It is given that the estimated OLS line is shown below:

Answered: 4. Suppose a new sample is chosen and…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Suppose Paul has two monthly bills, one for utilities and one for cable services. Paul's utility bill includes separate charges for gas and electricity usage. The total number of dollars he spends each month for utilities is nu. Paul's cable bill includes separate charges for his cable television subscription and his internet service. The total number of dollars he spends on cable services each month is nc. Assume that the true, long-run proportion pE of Paul's utility bill due to electricity usage is known to be 0.40. Assume that the true, long-run proportion ps of his cable bill due to television service is known to be 0.65. The number of dollars Paul spends each month for electricity is a binomial random variable E with mean ug and standard deviation o E. The number of dollars he spends each month for cable television is a binomial random variable T with mean µs and standard deviation oT. The correlation pET between E and T is 0.40. The total number of dollars ny Paul spends one…
#6
5. If MZLKN = 39, what is the MLMKN?
The highway department wants to estimate the proportion of vehicles on a Highway at KM 25 between midnight and 5:00 A.M. The head of the department wants to see how many 18-wheel tractor trailers pass on the road. These estimates will be used to determine highway repairs and construction considerations and in highway patrol planning. The department chief asked investigators to calculate estimates of vehicles at different locations on inter-island roads over the past 7 days. From 3,481 vehicles counted there are 927 are 18-wheel drive. However, out of the total 927, there were 51 vehicles that had accidents so that the sample was calculated based on the results of a reduction in the number of accidents. Specify an approximate point for the proportion of vehicles performingtravel on KM 25 during this time period which is an 18-wheeled vehicle!(Assume the confidence level is 99%). What are the benefits of estimating value estimates in this case (analysis of the answers you have obtained)?
2. In 1990, there were 3,300 births in LaPorte County. In 2010, there were 4,200 births in that same county. (a) 2010. Round to the nearest whole number. Use the data above to compute the average rate of change in population from 1990 to Interpret the average rate of change found in part a in a complete sentence.
Suppose that the result of a public opinion poll shows that just 10% of people would be willing to give up their cell phones for 1 week in exchange for $100. How many people would need to be surveyed in order to have a margin of error of ±2%?
3. MZMJK = K MZMJL %3D 27° MLJLK =. m/KML = m/MNL =. M

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