A poll of 2,163 randomly selected adults showed that 89% of them own cell phones. The technology display below results from a test of the claim that 90% of adults own cell phones. Use the normal distribution as an approximation to the binomial distribution, and assume a 0.01 significance level to complete parts (a) through (e).Test of p = 0.9 vs p ≠ 0.9| Sample | X | N | Sample p | 95% CI | Z-Value | P-Value ||--------|-----|------|-----------|---------------------|---------|---------|| 1 | 1934| 2163 | 0.894129 | (0.877088, 0.911169)| -0.91 | 0.363 |a. Is the test two-tailed, left-tailed, or right-tailed?- Left-tailed test- Right-tailed test- Two-tailed testb. What is the test statistic?The test statistic is ______.(Round to two decimal places as needed.)c. What is the P-value?The P-value is ______.(Round to three decimal places as needed.)d. What is the null hypothesis and what do you conclude about it?Identify the null hypothesis.- \( \text{A. } H_0: p < 0.9 \)- \( \text{B. } H_0: p \leq 0.9 \)- \( \text{C. } H_0: p > 0.9 \)- \( \text{D. } H_0: p = 0.9 \)Choose the correct answer below.- A. Fail to reject the null hypothesis because the P-value is less than or equal to the significance level, α.- B. Reject the null hypothesis because the P-value is less than or equal to the significance level, α.- C. Fail to reject the null hypothesis because the P-value is greater than the significance level, α.- D. Reject the null hypothesis because the P-value is greater than the significance level, α.

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Test of p= 0.9 vs p#0.9 Sample X N Sample p 0.894129 95% CI Z-Value P.Value 1934 2,163 (0.877088,0.911169) -0.91 0.363 a. Is the test two-tailed, left-tailed, or right-tailed? O Left-tailed test O Right tailed test O Two-talled test b. What is the test statistic? The test statistic is O (Round to two decimal places as needed.) c. What is the P-value? The P.value isO (Round to three decimal places as needed.) d. What is the null hypothesis and what do you conclude it? Identify the null hypothesis. O A. Ho: p<0.9 O B. Ho: p0.9 OC. Ho: p>0.9 OD. Ho: p=0.9 Choose the correct answer below. O A. Fail to reject the null hypothesis because the P-value is less than or equal to the significance level, a. O B. Reject the nul hypothesis because the P-value is less than or equal to the significance level, a. OC. Fail to reject the null hypothesis because the P-value is greater than the significance level, a. OD. Reject the nul hypothesis because the Pvalue is greater than the significance level, a.

Test of p= 0.9 vs p#0.9 Sample X N Sample p 0.894129 95% CI Z-Value P.Value 1934 2,163 (0.877088,0.911169) -0.91 0.363 a. Is the test two-tailed, left-tailed, or right-tailed? O Left-tailed test O Right tailed test O Two-talled test b. What is the test statistic? The test statistic is O (Round to two decimal places as needed.) c. What is the P-value? The P.value isO (Round to three decimal places as needed.) d. What is the null hypothesis and what do you conclude it? Identify the null hypothesis. O A. Ho: p<0.9 O B. Ho: p0.9 OC. Ho: p>0.9 OD. Ho: p=0.9 Choose the correct answer below. O A. Fail to reject the null hypothesis because the P-value is less than or equal to the significance level, a. O B. Reject the nul hypothesis because the P-value is less than or equal to the significance level, a. OC. Fail to reject the null hypothesis because the P-value is greater than the significance level, a. OD. Reject the nul hypothesis because the Pvalue is greater than the significance level, a.

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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