A researcher wishes to estimate the percentage of adults

Reference no: EM13639686

1. Construct a confidence interval of the population proportion at the given level of confidence. x=120, n=300, 99% confidence

2. A researcher wishes to estimate the proprotion of adults who have high speed internet access. What size sample should be obtained if she wishes to estimate to be within 0.05 with 99% confidence if

a. She uses a previous estimate of 0.58?

b. She does not use any prior estimates?

3. A researcher wishes to estimate the percentage of adults who support aboloishing the penny. What size sample should be obtained if he wishes the estimate to be within 4 percentage points with 95% confidence if

a. He uses a previous estimate of 32%?

b. He does not use any prior estimates?

Reference no: EM13639686

Questions Cloud

A total of 200mol of a compound is allowed to react with : a total of 2.00mol of a compound is allowed to react with water in a foam coffee cup and the reaction produces 110g of

What is the area under the normal curve between z -10 and : what is the area under the normal curve between z -1.0 and z

If the particle has a speed of 840 ms on surface a and : a charged particle of mass 4.20 x 10-2 kg and charge 7.60 x 10-5 c moves from equipotential surface a at a potential of

Air at the rate of 18 kgs is drawn into the compressor of a : air at the rate of 18 kgs is drawn into the compressor of a jet engine at 55 kpa and -23c and is compressed reversibly

A researcher wishes to estimate the percentage of adults : 1. construct a confidence interval of the population proportion at the given level of confidence. x120 n300 99

To what elevation in m would a 1000-kg mass have to be : a concrete slab measuring 0.3m x 4m x 6m initially at 298 k is exposed to the sun for several hours after which its

If the particle has a speed of 840 ms on surface a and : a charged particle of mass 4.20 10-2 kg and charge 7.60 x 10-5 c moves from equipotential surface a at a potential of

Which mixture would not be expected to be homogeneous : which mixture would not be expected to be homogeneous? pentanol and hexane kbr and water acetic acid and methanol

Grams and centimeters in the metric system have been : grams and centimeters in the metric system have been defined so that the density of water at 3.98 c is exactly 1. at 20

User Account

All Pages