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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In a newspaper's survey of 502 people, 54.6% said that we should replace passwords with biometric security, such as fingerprints. The accompanying 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: +2.5758
P-value: 0.0401
.....
a. Is the test two-tailed, left-tailed, or right-tailed?
Choose the correct answer below.
two-tailed
left-tailed
O right-tailed
b. What is the test statistic?
(Round to two decimal places as needed.)
c. What is the P-value?
P-value =
(Round to three decimal places as needed.)
d. What is the null hypothesis, and what do you conclude about it?
Menvere windows
Statcrunch
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Transcribed Image Text:In a newspaper's survey of 502 people, 54.6% said that we should replace passwords with biometric security, such as fingerprints. The accompanying 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: +2.5758 P-value: 0.0401 ..... a. Is the test two-tailed, left-tailed, or right-tailed? Choose the correct answer below. two-tailed left-tailed O right-tailed b. What is the test statistic? (Round to two decimal places as needed.) c. What is the P-value? P-value = (Round to three decimal places as needed.) d. What is the null hypothesis, and what do you conclude about it? Menvere windows Statcrunch P Type here to search o 日つ hp १2 े delete fs f6 f7 f8 fg 144 1o insert prt sc 4, ? f2 米 f4 IOI esc & #3 backspace home 2 4 8. P. pg up E Y tab enter pg dn A F G H. J caps lock pause ↑ shift end shift 1 %24
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