# 2.5758 An automobile manufacturer would like to know what proportion of its customers are not satisfied...

###### Question:

2.5758
An automobile manufacturer would like to know what proportion of its customers are not satisfied with the service provided by the local dealer. The customer relations department will survey a random sample of customers and compute a 99% confidence interval for the proportion who are not satisfied.

(a) Past studies suggest that this proportion will be about 0.19. Find the sample size needed if the margin of the error of the confidence interval is to be about 0.015.
(You will need a critical value accurate to at least 4 decimal places.) Sample size:

(b) Using the sample size above, when the sample is actually contacted, 18% of the sample say they are not satisfied. What is the margin of the error of the confidence interval?
MoE:

#### Similar Solved Questions

##### In what kinds of situations are police officers most likely to use force? When has too...
In what kinds of situations are police officers most likely to use force? When has too much force been used?(class:criminal justice)...
##### 11: 2. For each truss below, determine the forces in all of the members marked with...
11: 2. For each truss below, determine the forces in all of the members marked with a checkmark () using the method of sections. b) KN kN 90 kN CNA NIz 60 KN 100 60 KN KN...
##### Enter your answer in the provided box. Ammonia burns in oxygen gas to form nitric oxide...
Enter your answer in the provided box. Ammonia burns in oxygen gas to form nitric oxide (NO) and water vapor. How many volumes of NO are obtained from five volumes of ammonia at the same temperature and pressure? volume(s)...
##### Consider the following time series data. t 1 ය 6 11 2 4 5 Y 9...
Consider the following time series data. t 1 ය 6 11 2 4 5 Y 9 13 15 a. Which of the following is a correct time series plot for this data? 1. TimeSeries Value 14 -12 10 te 16 -4 F2 3 Time Period/t) 2. TimeSeries Value +14 +12 10 18 6 -4 1 3 Time Period (t) 3. TimeSeries Value F14 +12 10 18 6 -...
##### Diluting sulfuric acid with water is highly exothermic: (Use data from the Appendix to find fo...
Diluting sulfuric acid with water is highly exothermic: (Use data from the Appendix to find for diluting 1.00 mol of H2SO4(l) (d = 1.83 g/mL) to 1 L of 1.00 MH2SO4(aq) (d = 1.060 g/mL). ) Suppose you carry out the dilution in a calorimeter. The initial T is 22.8°C, and the specific heat capaci...
##### Het Announcements CALCULATO R Problem 11-2A (Video) Ayala Corporation accumulates the following data relative to jobs...
Het Announcements CALCULATO R Problem 11-2A (Video) Ayala Corporation accumulates the following data relative to jobs started and "inished during the month of June 2020. Cests and Production Data Actual Standard 11.000 SIGN 16.60 211.720 acturing overhead oled 5214320 573.950 Overhead is applied...
##### Aspirin can be made in the laboratory by reacting acetic anhydride (C4H6O3) with salicylic acid (C7H6O3)...
Aspirin can be made in the laboratory by reacting acetic anhydride (C4H6O3) with salicylic acid (C7H6O3) to form aspirin (C9H8O4) and acetic acid (C2H4O2). The balanced equation is C4H6O3+C7H6O3→C9H8O4+C2H4O2.In a laboratory synthesis, a student begins with 2.90 mL of acetic anhydride (density=...
##### PA I. Add geometrically the below vectors by using any of the methods discussed in class...
PA I. Add geometrically the below vectors by using any of the methods discussed in class rarallclogram or head-to-toc). Label each vector as they are being drawn and their resultant. Make sure the labeling of the vectors is correct. Although each vector can be trivially named, there are specifie dif...
##### 1-at what times are cars at the same point? 2-At what times is the distance from...
1-at what times are cars at the same point? 2-At what times is the distance from A to B neither increasing nor decreasing ? 3-at what times do A and B have the same acceleration? Constants Two cars, A and B, travel in a straight line. The distance of A from the starting point is given as a funct...
##### HSCI 390 Assignment 7 Name 1. Researchers found the mean sodium intake in men and women...
HSCI 390 Assignment 7 Name 1. Researchers found the mean sodium intake in men and women 60 years or older to be 2940 mg with a standard deviation of 1476 mg. Use these values for the mean and standard deviation of the US population and find the probability that a random sam 75 people from the popula...
##### A 2020 Pew Research poll found that 65% of U.S. adults believe that President Donald Trump...
A 2020 Pew Research poll found that 65% of U.S. adults believe that President Donald Trump was too slow to make major steps to stop the spread of the coronavirus. Let's assume that 0.65 is the population proportion. Suppose random samples of 100 U.S. adults are randomly selected, and the proport...
##### Use bond energies as found in Table 9.1 of Tro, Fridgen and Shaw and estimate the...
Use bond energies as found in Table 9.1 of Tro, Fridgen and Shaw and estimate the energy change ∆ H o (in kJ/mol) for the following reaction: H—C ≡ C—H + 2 I 2 → CHI 2 —C HI 2 The C-I bond energy is 213 kJ/mol....
##### In PintOS. List at least 3 “bad pointers” you encountered in the source code of tests...
In PintOS. List at least 3 “bad pointers” you encountered in the source code of tests of userprograms. Mention which file is used and for what purpose. (3x2 = 6) Which system utility would you use to check correct argument passing in userprograms. (1)...
eBook Show Me How cute Professional Products Inc., a wholesaler of office products, was organized on February 5 of the current year, with an authorization of 50,000 shares of preferred 2% stock, $70 par and 650,000 shares of$25 par common stock. The following selected transactions were completed du...