This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: In a survey of 1000 Americans, 850 said that they own a cell phone. Assume that the survey was ... (Read 52 times)

Pea0909berry

  • Hero Member
  • *****
  • Posts: 573
on: May 5, 2020

Question 1

An honest coin is tossed n times. Let the random variable X denote the number of heads tossed. How many tosses n are required to be 97.5% certain that X will be less than + 20?
◦ 100
◦ 800
◦ 400
◦ 200
◦ none of these

Question 2

In a survey of 1000 Americans, 850 said that they own a cell phone. Assume that the survey was properly conducted and that the 1000 people surveyed represent an unbiased sample of the entire population. Estimate the standard error for this survey.
◦ ≈ 0.1%
◦ ≈ 11.1%
◦ ≈ 11.3%
◦ ≈ 12.75%
◦ ≈ 1.1%
Excursions in Modern Mathematics ¦ Tannenbaum ¦ 9th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by Pea0909berry on May 5, 2020

kescobar@64

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: May 5, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 56% of students answer this correctly


Pea0909berry

  • Member
  • Posts: 573
Reply 2 on: May 5, 2020
Wow, this really help

bblaney

  • Member
  • Posts: 323
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Bacterial cell division. Bacterial cell division.
Davis, Weintraub, and Lasser and the promotion of muscle cell differentiation in fibroblasts by the Davis, Weintraub, and Lasser and the promotion of muscle cell differentiation in fibroblasts by the
The direction of plant cell expansion is controlled by microfibrils and microtubules. Plant cells en The direction of plant cell expansion is controlled by microfibrils and microtubules. Plant cells en
Plant Cell Wall Structure Plant Cell Wall Structure
A Gaze-Direction Cell A Gaze-Direction Cell
Model of malaria protozoa in a red blood cell. New parasites are produced and mature in the RBC, ... Model of malaria protozoa in a red blood cell. New parasites are produced and mature in the RBC, ...
Video: Pneumonia Animation

For a complete list of videos, visit our video library