Which of the following is not true when using the confidence interval method for testing a claim about u when a is unknown?Choose the correct answer below.OA. The P-value method, the traditional method, and the confidence interval method are equivalent and yield the same results.OB. For a one-tailed hypothesis test with a 0.05 significance level, one must construct a 90% confidence interval.OC. The P-value method and the classical method are not equivalent to the confidence interval method in that they may yield different results.OD. For a two-tailed hypothesis test with a 0.05 significance level, one must construct a 95% confidence interval.

The question is about testing a claim on the basis of confidence interval.Introduction :Confidence…

Answered: Which of the following is not true when…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Ezekiel wants to use an interval from a sample based on z-scores to estimate the proportion of seniors in his school who have a smartphone. He takes a MORE of 20 out of the total 100 seniors and finds that 12 of those sampled have a smartphone. What conditions for constructing this confidence interval does Ezekiel's sample satisfy? Choose all the appropriate answers: The data is a random sample from the population of interest The observed scores of successes and failures are large enough Individual observations can be considered independent
Are families with kids (population 1) just as likely than families without kids (population 2) to display holiday decorations? To answer the question, we would like to construct a 80% confidence interval using the following statistics. 21 of the 75 families with kids surveyed display holiday decorations and 26 of the 93 families without kids surveyed display holiday decorations. a. The 80% confidence interval is (please show your answers to 3 decimal places) -0.099 X P1 P2 <0.101 X
A box model is used to calculate a confidence interval in the following scenario: One thousand high school students in a large city are randomly selected for a survey. Among these students, the average reported GPA is 3.0, and the SD is 1.22. For each of the following quantities in the box model, select the answer if the quantity is estimated, not known. Leave the quantities that are known unselected. a. the SD of GPA of high school students in the sample b. the average GPA of high school students in the sample c. the average GPA of all high school students in the city d. the SD of the tickets in the box
An individual in the market for a new cell phone was interested in the proportion of the U.S. population that uses an iPhone. A random sample of 1,234 was obtained and an approximate 95% confidence interval for this situation was calculated to be (0.42, 0.48). Which of the following statements is the best interpretation of this confidence interval? O a. We are 90% confident that the interval (0.42, 0.48) captures the sample proportion of U.S. residents who use an iPhone. O b. There is a between a 42% and 48% chance that a randomly selected U.S. resident uses an iPhone. OC, 95% of the U.S. residents who use an iPhone falls in the interval (0.42, 0.48). Od. We are 95% confident that the interval (0.42, 0.48) captures the population proportion of U.S. residents who use an iPhone.
1. A 90% confidence interval is wider than a 99% confidence interval using the exact same data. True False ONLY If false, change the underlined portion by putting the correct answer here (leave blank if true): 2. The null hypothesis if you are trying to find out if you have enough evidence to conclude that the population mean is different than 55 would be Ha: µ ≠ 55. True False If false, change the underlined portion by putting the correct answer here (leave blank if true): 3. A p-value of 0.017 provides more evidence against the null hypothesis than a p-value of 0.005. True False ONLY If false, change the underlined portion by putting the correct answer here (leave blank if true):
If n=310 and X = 248, to construct a 90% confidence interval, you need to use which one of the following calculator Hypothesis Test for a Population Mean Given Data Two Independent Proportions Comparison One-Way ANOVA Chi-Square Test for Independence Chi-Square Test for Goodness of Fit Two Dependent Sample Means Comparison Given Data Confidence Interval for a Population Mean Given Statistics Hypothesis Test for a Population Mean Given Statistics Confidence Interval for a Population Mean Given Data Two Independent Sample Means Comparison Given Statistics Hypothesis Test for a Population Proportion Two Independent Sample Means Comparison Given Data Confidence Interval for a Population Proportion Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places.Confidence interval = ---------------. Express the same answer as a tri-linear inequality using decimals (not percents) accurate to three decimal places. --------…
You create a 95% confidence interval for the proportion of a population. The confidence interval does not contain 0.10. This means that Group of answer choices a.You have evidence to conclude that the population proportion is equal to 0.10. b.You do not have evidence to conclude that the population proportion is equal to 0.10. c.You have evidence to conclude that the population proportion is not equal to 0.10. d.You do not have evidence to conclude that the population proportion is not equal to 0.10. e.The answer cannot be determined with the information given.
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Which interval is which? Alessandro constructed three confidence intervals, all from the same random sample. The confidence levels are 90%, 95%, and 99%. The confidence intervals are I. 7.4<μ<8.6 II. 7.1
Which is true about a 95% confidence interval for a population proportion based on a given sample? A There is a 95% chance that the true sample proportion is in the middle of our interval. There is a 5% chance that our Interval does not contain the population proportion. C The Interval Is wider than a 90% confidence Interval would be. none of these is true.
Here are summary statistics for randomly selected weights of newborn girls: n= 181, x = 31.8 hg, s = 7.7 hg. Construct a confidence interval estimate of the mean. Use a 90% confidence level. Are these results very different from the confidence interval 30.9 hg <µ< 33.5 hg with only 20 sample values, x 32.2 hg, and s =3.4 hg? What is the confidence interval for the population mean u? hg
.Explain the meaning of the (a) Do the data indi region is higher than that in New England? Use a = (b) Find a 98% confidence interval for u confidence interval in the context of the problem. ain 0.01. H. Explain the meaning of the 16. Medicine: Hay Fever A random sample of n. Kansas gave the following information for people under 25 years of ace 16 communities in western %3D 1 : Rate of hay fever per 1000 population for people under 25 x,: 120 128 92 123 112 93 98 90 127 88 125 95 125 117 97 122 14 regions in western Kansas gave the following A random sample of n, information for people over 50 years old:

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