a. Is the test two-tailed, left-tailed, or right-tailed?b. What is the test statistic?c. What is the P-value?d. What is the null hypothesis, and what do you conclude about it?e. What is the final conclusion? In a newspaper's survey of 507 people, 52.5% said that we should replace passwords with biometric security, such as fingerprints. The accompanying Statdisk display results from a test of theclaim that half of us say that we should replace passwords with biometric security. Use the normal distribution as an approximation to the binomial distribution. Use the display and a 0.10significance level to complete parts (a) through (e).Sample proportion: 0.5246548Test Statistic, z: 1.1103Critical z: ± 1.6449P-value: 0.2669a. Is the test two-tailed, left-tailed, or right-tailed?Choose the correct answer below.left-tailedtwo-tailedright-tailed

a) - The problem describes a survey of 507 people who were asked whether we should replace passwords…

a. Is the test two-tailed, left-tailed, or right-tailed? b. What is the test statistic? c. What is the P-value? d. What is the null hypothesis, and what do you conclude about it? e. What is the final conclusion?

a. Is the test two-tailed, left-tailed, or right-tailed? b. What is the test statistic? c. What is the P-value? d. What is the null hypothesis, and what do you conclude about it? e. What is the final conclusion?

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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The smaller the observed p-value, the more evidence you have against the null hypothesis. Select one: True False
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a) What is the correct p-value for this test?
A political scientist claims that 38% of first-year college students characterize themselves as being “moderate” or “middle of the road” as far as their political affiliation is concerned. Believing this claimed value is too high, you survey a random sample of 400 first-year college students and find that 120 characterize themselves as being “moderate” or “middle of the road.” Based on this information, what will the test statistic be? Choose the answer below that is closest to what you calculate, and try not to do a lot of rounding until you get to the very end of your calculations. 1. -0.3 2. -1.2 3. -2.6 4. -3.3 5. None of the other answer options are correct because the test statistic should be positive, not negative.
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