Construct the confidence interval for the population

Assignment Help Basic Statistics

Reference no: EM13636865

1. Construct the confidence interval for the population mean?

c=0.95, x(samplemean) =16.1, s=8.0, and n=90

A 95% confidence interval for ? is ?

2. Use the confidence interval to find the margin of error and the sample mean.

(0.282, 0.420)

The margin of error is?

The sample mean is?

3. People were polled on how many books they read the previous year. How many subjects are needed to estimate the number of books read the previous year within one book 90% confidence? Initial survey results indicate that ?=18.4 books.

A 90% confidence level requires ? subjects.

4. In a random sample of 42 bolts, the mean length was 1.51 inches and the standard deviation was 0.08 inch. Use a normal t-distribution or a t-distribution to construct a 90% confidence interval for the mean.

The 90% confidence interval is?

Reference no: EM13636865

Questions Cloud

A small amount of the solid mgso4 7h2o is put in a : a small amount of the solid mgso4 7h2o is put in a crucible. the solid is gently heated by a bunsen burner until all

Block b is attached to the 20mm inner diameter block a : block a is dropping at a velocity of 600mmsec and acceleration of 100mmsec2. it is attached directly to an inner

Te equation of oscillation of a mass-spring system is xt : the equation of oscillation of a mass-spring system is xt 0.3cos4t - 0.7 where x is in meters and t in seconds. the

How would the wheel diameter and the volumes of the : the minto wheel is a power-producing device activated by evaporating and condensing a work substance. the only energy

Construct the confidence interval for the population : 1. construct the confidence interval for the population mean?c0.95 xsamplemean 16.1 s8.0 and n90a 95 confidence

What amount of solid naoh must be added to 10 l of a 15 m : what amount of solid naoh must be added to 1.0 l of a .15 m h2co3 solution to produce a solution with h 3.5x10-11 m?

A mass attached to a spring oscillates according to the : a mass attached to a spring oscillates according to the equation xt 24sin16t 0.50 where x is in cm and t in seconds.

If the number of people that voted for the candidate in the : suppose that in elections a candidate says that hell get 60 of the votes in the election. the total population is 300

Use the laws of classical mechanics to solve this problem : use the laws of classical mechanics to solve this problem. an atom of mass m moves in positive x direction with speed

User Account

All Pages