UESTION 11 Which of these statements is correct? The larger the margin of error, the more...
UESTION 11
Which of these statements is correct?
The larger the margin of error, the more confidence one should have that a survey result would reflect the result of a survey of the entire population.
The larger the margin of error, the less confidence one should have that a survey result would reflect the result of a survey of the entire population.
Margin of error has no effect on the level of confidence one should have that a survey result would reflect the result of a survey of the entire population.
The smaller the margin of error, the less confidence one should have that a survey result would reflect the result of a survey of the entire population.
Homework Answers
The correct choice is
The larger the margin of error, the less confidence one should have that a survey result would reflect the result of a survey of the entire population.
because the margin of error is a statistic expressing the amount of random sampling error in the results of a survey. and it is the +/- quantity in confidence interval if margin of error increases the confidence interval get flat.
Add Answer to:
UESTION 11
Which of these statements is correct?
The larger the margin of error, the more...
(C) If the confidence levels were 99.5% rather than 99.9% would the margin of error be...
(C) If the confidence levels were 99.5% rather than 99.9% would
the margin of error be larger or smaller than the result in part
(a) ? Explain.
The margin of error would be ( larger or smaller ) , since ( an
increase or a decrease ) in the confidence level will ( decrease or
increase ) the critical value z a/2.
SAT scores: A college admissions officer takes a simple random sample of 100 entering freshmen and computes their...
QUESTION 3 All things being equal, which is correct? As the confidence level increases, the margin...
QUESTION 3 All things being equal, which is correct? As the confidence level increases, the margin of error gets larger. As the sample size increases, the confidence interval gets wider. As the standard deviation increases, the margin of error gets smaller. As the sample mean increases, the margin of error gets larger. Which of the following is correct? As the sample size increases, the confidence level decreases. As the confidence level increases, the width of the confidence interval decreases. As...
Notice (from the margin of error measurment determined in 3b) that we have used a sample...
Notice (from the margin of error measurment determined in 3b) that we have used a sample size larger than needed in order to be sufficiently confident that the sample mean would estimate the population mean height within 4 cm; that is our margin of error at 2.17 cm was much smaller than 4 cm. Therefore, determine the smaller sample size required to predict the mean height of all FHSU stats students based upon a needed 95% confidence level with an...
Which of the following would produce a confidence interval with a larger margin of error than...
Which of the following would produce a confidence interval with a larger margin of error than the 95% confidence interval with a sample size of 50? A. using a sample size of 100 and fix the confidence level. B. using a confidence level of 90% and fix the sample size. C. using a confidence level of 99% and fix the sample size. D. using a sample size of 500 and fix the confidence level. E. None of the above.
Which of the following statements describe a Type II error? astion 11 yet swered rked out...
Which of the following statements describe a Type II error? astion 11 yet swered rked out of Flag estion Select one: a. Stating that there was an effect when actually there was no effect. O b. Stating that there was no effect when in fact there was an effect. c. Saying that a person is guilty as charged when in fact the person is innocent O d. A researcher rejects a true null hypothesis. RE ion 12 Confidence intervals are...
Find the margin of error for a 95% confidence interval for estimating the population mean when...
Find the margin of error for a 95% confidence interval for estimating the population mean when the sample standard deviation equals 92, with a sample size of (a) 400,(b) 1800. What is the effect of the sample size? 2. The margin of error for a 95% confidence interval with a sample size of 400 is (Round to the nearest tenth as needed.) b. The margin of error for a 90% confidence interval with a sample size of 1600 is (Round...
Which of the following statements are true? Note that there may be more than one correct...
Which of the following statements are true? Note that there may be more than one correct answer; select all that are true. In order for the inference procedures for proportions to be valid, the population from which the random sample is drawn must be normally distributed. As the desired margin of error decreases, then the required minimum sample size will increase. When determining the minimum sample size, if the value of p^ is not given, we should use the "worst-case...
A population has standard deviation - 17.3. Part 1 of 2 (a) How large a sample...
A population has standard deviation - 17.3. Part 1 of 2 (a) How large a sample must be drawn so that a 99.9% confidence interval for ji will have a margin of error equal to 3.7? Round the answer up to the nearest integer. (Round the critical value to no less than three decimal places.) A sample size of is needed to be drawn in order to obtain a 99.9% confidence interval with a margin of error equal to 3.7....
In a recent poll of 1 adults current debt during the next three months. A more...
In a recent poll of 1 adults current debt during the next three months. A more detailed poll surveyed 1288 adult groups, 18-29, 30-49, 50-64, and 65+. Complete parts a and b below ) Do you expect the 95% confidence interval for the true proportion of all 18-to 29-year-olds who are wormed to be wider or narrower than the 95% c for the true proportion of all consumers? Explain Choose the correct answer below O A The interval for the...
1. Which of the following statements are not generally true? a. A type I error is...
1. Which of the following statements are not generally true? a. A type I error is usually more serious than a type II error. b. A type II error is usually more serious than a type I error. c. A test with significance level is one for which the type I error probability is controlled at the specified level. d. When an experiment and a sample size are fixed, then decreasing the size of the rejection region to obtain...
(C) If the confidence levels were 99.5% rather than 99.9% would
the margin of error be larger or smaller than the result in part
(a) ? Explain.
The margin of error would be ( larger or smaller ) , since ( an
increase or a decrease ) in the confidence level will ( decrease or
increase ) the critical value z a/2.
SAT scores: A college admissions officer takes a simple random sample of 100 entering freshmen and computes their...
QUESTION 3 All things being equal, which is correct? As the confidence level increases, the margin of error gets larger. As the sample size increases, the confidence interval gets wider. As the standard deviation increases, the margin of error gets smaller. As the sample mean increases, the margin of error gets larger. Which of the following is correct? As the sample size increases, the confidence level decreases. As the confidence level increases, the width of the confidence interval decreases. As...
Which of the following statements describe a Type II error? astion 11 yet swered rked out of Flag estion Select one: a. Stating that there was an effect when actually there was no effect. O b. Stating that there was no effect when in fact there was an effect. c. Saying that a person is guilty as charged when in fact the person is innocent O d. A researcher rejects a true null hypothesis. RE ion 12 Confidence intervals are...
Find the margin of error for a 95% confidence interval for estimating the population mean when the sample standard deviation equals 92, with a sample size of (a) 400,(b) 1800. What is the effect of the sample size? 2. The margin of error for a 95% confidence interval with a sample size of 400 is (Round to the nearest tenth as needed.) b. The margin of error for a 90% confidence interval with a sample size of 1600 is (Round...
A population has standard deviation - 17.3. Part 1 of 2 (a) How large a sample must be drawn so that a 99.9% confidence interval for ji will have a margin of error equal to 3.7? Round the answer up to the nearest integer. (Round the critical value to no less than three decimal places.) A sample size of is needed to be drawn in order to obtain a 99.9% confidence interval with a margin of error equal to 3.7....
In a recent poll of 1 adults current debt during the next three months. A more detailed poll surveyed 1288 adult groups, 18-29, 30-49, 50-64, and 65+. Complete parts a and b below ) Do you expect the 95% confidence interval for the true proportion of all 18-to 29-year-olds who are wormed to be wider or narrower than the 95% c for the true proportion of all consumers? Explain Choose the correct answer below O A The interval for the...
Most questions answered within 3 hours.
-
In Netherland Dwarf rabbits, dwarf size is determined by allele
N, and normal-size by allele n....
asked 1 minute from now -
During Heaton Company’s first two years of operations, it
reported absorption costing net operating income as...
asked 13 minutes ago -
Consider testing the
hypotheses:
H0: p = 0.56
H1: p > 0.56
where p is
the...
asked 16 minutes ago -
In a two-factor analysis of variance a main effect is defined as
____.
a. the unique...
asked 23 minutes ago -
A bank's loan officer rates applicants for credit. The ratings
are normally distributed with a mean...
asked 24 minutes ago -
Fill in the following information for Adipic Acid: molecular
weight, g or ml, mole, melting point,...
asked 29 minutes ago -
how
to use a for loop to iterate over the string below and print each
character...
asked 31 minutes ago -
Please type answer, Thanks.
Respond to the following in a minimum of 175
words:
Research industry...
asked 30 minutes ago -
Assume that all interest rates in the economy increase from 9
percent to 10 percent. Which...
asked 40 minutes ago -
Describe the function of a Change Control Board.
When calculating Planned Value (PV), what is the...
asked 46 minutes ago -
The customer help center in your company receives calls from
customers who need help with some...
asked 57 minutes ago -
A manufacturer wished to compare the wearing qualities of two
different types of automobile tires, A...
asked 55 minutes ago