In a newspaper's survey of 502 people, 54.6% said that we should replace passwords with biometric security, such as fingerprints. The acompanying Statdisk display results from a test of the claim 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 0.01 significance level to complete parts (a) through (e). Sample proportion: 0.5458167 Test Statistic, z: 2.0531 Critical z. 12.5758 P-value: 0.0401 ...... a. Is the test two-tailed, left-tailed, or right-tailed? Choose the correct answer below. two-tailed O left-tailed O right-tailed b. What is the test statistic? (Round to two decimal places as needed) c. What is the Pvalue? P-value (Round to three decimal places as needed) d. What is the null hypothesis, and what do you conclude about it? Statcrunch P Type here to search ho ト insert prt sc delete 144 eesc 2. %24 4. & 7. (@) %23 5. 6. 8 backspace home %3D 2. T. Dg up Q R Y tab J K L enter F G up 6a caps lock A pause * shift ZXCV M. shift 1 の
In a newspaper's survey of 502 people, 54.6% said that we should replace passwords with biometric security, such as fingerprints. The acompanying Statdisk display results from a test of the claim 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 0.01 significance level to complete parts (a) through (e). Sample proportion: 0.5458167 Test Statistic, z: 2.0531 Critical z. 12.5758 P-value: 0.0401 ...... a. Is the test two-tailed, left-tailed, or right-tailed? Choose the correct answer below. two-tailed O left-tailed O right-tailed b. What is the test statistic? (Round to two decimal places as needed) c. What is the Pvalue? P-value (Round to three decimal places as needed) d. What is the null hypothesis, and what do you conclude about it? Statcrunch P Type here to search ho ト insert prt sc delete 144 eesc 2. %24 4. & 7. (@) %23 5. 6. 8 backspace home %3D 2. T. Dg up Q R Y tab J K L enter F G up 6a caps lock A pause * shift ZXCV M. shift 1 の
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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