Business sensor technology provides a way for companies to learn about their customers, employees, and operations. A survey of global business and IT executives found that 28% of automotive executives; 27% of energy, utilities, and mining executives; 30% of hospitality and leisure executives; 30% of industrial products executives; and 59% of retail and consumer executives say their companies are currently investing in business sensor technology. Suppose these results were based on 400 business and IT executives in each of the five industries: Automotive; Energy, Utilities, and Mining; Hospitality and Leisure; Industrial Products; and Retail and Consumer. Complete parts (a) through (b) Enter your data in the table below and then use the TI-84 Stat tests. Invest in Sensor Technology Auto Execs Energy Execs Hospitality Execs Industrail Execs Retail Execs Totals Yes No Totals At the 0.05 level of significance, is there evidence of a difference among the industries with respect to the proportion of executives that say their companies are currently investing in business sensor technology? State the null and alternative hypotheses. A. H0: π1=π2=π3=π4=π5=0 H1: At least one of the πj is not equal to zero (where j=1, 2, 3, 4, 5) B. H0: π1=π2=π3=π4=π5 H1: π1≠π2≠π3≠π4≠π5 C. Ho: P1=P2=P3=P4=P5 H1: not all P's are equal D. H0: π1=π2=π3=π4=π5=0 H1: π1≠π2≠π3≠π4≠π5≠0 The test statistic is χ2STAT=___. p-value=____ __A__ H0., since the p-value is less than a. There __B__ significant evidence of a difference among the industries with respect to the proportion of executives that say their companies are currently investing in business sensor technology. A: do not reject or reject B: is not or is What does the p-value mean? Choose the correct answer below. A. The p-value is the probability of rejecting the null hypothesis if the test were repeated for different samples. B. The p-value is the probability of obtaining a result at least as extreme as the one obtained with this sample given that the null hypothesis is true. C. The p-value is the probability of falsely rejecting the null hypothesis. D. The p-value is the probability that the null hypothesis is true.

Business sensor technology provides a way for companies to learn about their customers, employees, and operations. A survey of global business and IT executives found that 28% of automotive executives; 27% of energy, utilities, and mining executives; 30% of hospitality and leisure executives; 30% of industrial products executives; and 59% of retail and consumer executives say their companies are currently investing in business sensor technology. Suppose these results were based on 400 business and IT executives in each of the five industries: Automotive; Energy, Utilities, and Mining; Hospitality and Leisure; Industrial Products; and Retail and Consumer. Complete parts (a) through (b) Enter your data in the table below and then use the TI-84 Stat tests. Invest in Sensor Technology Auto Execs Energy Execs Hospitality Execs Industrail Execs Retail Execs Totals Yes No Totals At the 0.05 level of significance, is there evidence of a difference among the industries with respect to the proportion of executives that say their companies are currently investing in business sensor technology? State the null and alternative hypotheses. A. H0: π1=π2=π3=π4=π5=0 H1: At least one of the πj is not equal to zero (where j=1, 2, 3, 4, 5) B. H0: π1=π2=π3=π4=π5 H1: π1≠π2≠π3≠π4≠π5 C. Ho: P1=P2=P3=P4=P5 H1: not all P's are equal D. H0: π1=π2=π3=π4=π5=0 H1: π1≠π2≠π3≠π4≠π5≠0 The test statistic is χ2STAT=_. p-value= A H0., since the p-value is less than a. There B__ significant evidence of a difference among the industries with respect to the proportion of executives that say their companies are currently investing in business sensor technology. A: do not reject or reject B: is not or is What does the p-value mean? Choose the correct answer below. A. The p-value is the probability of rejecting the null hypothesis if the test were repeated for different samples. B. The p-value is the probability of obtaining a result at least as extreme as the one obtained with this sample given that the null hypothesis is true. C. The p-value is the probability of falsely rejecting the null hypothesis. D. The p-value is the probability that the null hypothesis is true.

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Description: Business sensor technology provides a way for companies to learn about their customers, employees, and operations. A survey of global business and IT executives found that 28% of automotive executives; 27% of energy, utilities, and mining execu

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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400 business and IT executives in each of the five industries: Automotive; Energy, Utilities, and Mining; Hospitality and Leisure; Industrial Products; and Retail and Consumer. Complete parts (a) through (b) Enter your data in the table below and then use the TI-84 Stat tests.

Invest in Sensor Technology	Auto Execs	Energy Execs	Hospitality Execs	Industrail Execs	Retail Execs	Totals
Yes
No
Totals

At the 0.05 level of significance, is there evidence of a difference among the industries with respect to the proportion of executives that say their companies are currently investing in business sensor technology?

State the null and alternative hypotheses.

H0: π1=π2=π3=π4=π5=0

H1: At least one of the πj is not equal to zero (where j=1, 2, 3, 4, 5)

H0: π1=π2=π3=π4=π5

H1: π1≠π2≠π3≠π4≠π5

Ho: P1=P2=P3=P4=P5

H1: not all P's are equal

H0: π1=π2=π3=π4=π5=0

H1: π1≠π2≠π3≠π4≠π5≠0

The test statistic is χ2STAT=___.

p-value=____

__A__ H0., since the p-value is less than a. There __B__ significant evidence of a difference among the industries with respect to the proportion of executives that say their companies are currently investing in business sensor technology.

A: do not reject or reject

B: is not or is

What does the p-value mean? Choose the correct answer below.

A. The p-value is the probability of rejecting the null hypothesis if the test were repeated for different samples.

B. The p-value is the probability of obtaining a result at least as extreme as the one obtained with this sample given that the null hypothesis is true.

C. The p-value is the probability of falsely rejecting the null hypothesis.

D. The p-value is the probability that the null hypothesis is true.

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