Confidence interval, Basic Statistics

Assignment Help:

Questions

1. A genetic experiment with peapods resulted in one sample of offspring that consisted of 443 green peapods and 170 yellow peapods.  Construct a 95% confidence interval to estimate the true percentage of yellow peapods.

2. A random sample of the birth weights of 186 babies has a mean of 3103 grams and a standard deviation of 700 grams.  Construct a 98% confidence interval estimate of the mean birth weight for all such babies.

3. Salaries of 31 college professors who took a geology course in college have a mean of $58,000 and a standard deviation of $16,954.  Construct a 90% confidence interval estimate of the population standard deviation of all such professors.

 

 


Related Discussions:- Confidence interval

Lpp, A paper mill produces two grades of paper viz., X and Y. Because of ra...

A paper mill produces two grades of paper viz., X and Y. Because of raw material restrictions, it cannot produce more than 400 tons of grade X paper and 300 tons of grade Y paper i

Derive an expression for the autocorrelation, i)A sionusodial signal has t...

i)A sionusodial signal has the form x(t) = Asin?t Derive an expression for the autocorrelation Rxx(λ) II) Explain the significance of this result in term of the frequen

Probability, A certain manufactured item is visually inspected by two diffe...

A certain manufactured item is visually inspected by two different inspectors. When a defective item comes through the line, the probability that it gets by the first inspector is

Determine the local luminance, 1. Consider a room 3 m x 3m x 3m with one fa...

1. Consider a room 3 m x 3m x 3m with one façade made of glazing with diffuse transmittance 0.6 and reflectance 0.2. The interior surfaces have a reflectance of 0.5. Consider incid

Number of faults to line length, A study on the occurrence of line faults i...

A study on the occurrence of line faults in an electricity supply network was carried out over a two-year period.  Data was collected from six regions on the number of faults per y

Compute the sample correlation matrix, 1 Compute SX; SXY ; and SY . > # Put...

1 Compute SX; SXY ; and SY . > # Put your R code here. 2 Compute the sample correlation matrix (q_p) between the X and Y variables. Test individual correlations for significance

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd