Chapter 11, Problem 11.9AC

A survey was conducted of two types of marketers. The first type being marketers that focus primarily on attracting business (B2B), and the second type being marketers that primarily target consumers (B2C). It was reported that 518 (88%) of B2B and 250 (61%) of B2C marketers commonly use a business social media tool. The study also revealed that 313 (53%) of B2B marketers and 243 (60%) of B2C marketers commonly use a video social media tool. Suppose the survey was based on 589 B2B marketers and 407 B2C marketers. Complete parts (a) through (c) below. Find the rejection region. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to three decimal places as needed.) O A. ZSTAT + 1.960 Oc. ZSTAT > + Determine a conclusion. the null hypothesis. There of a difference between B2B marketers and B2C marketers in the proportion of the business social media tool. b. Find the p-value in (a) and interpret its meaning. p-value = (Type an integer or a…

A survey was conducted of two types of marketers. The first type being marketers that focus primarily on attracting business (B2B), and the second type being marketers that primarily target consumers (B2C). It was reported that 518 (88%) of B2B and 250 (61%) of B2C marketers commonly use a business social media tool. The study also revealed that 313 (53%) of B2B marketers and 243 (60%) of B2C marketers commonly use a video social media tool. Suppose the survey was based on 589 B2B marketers and 407 B2C marketers. Complete parts (a) through (c) below. a. At the 0.05 level of significance, is there evidence of a difference between B2B marketers and B2C marketers in the proportion that commonly use the business social media tool? Let population 1 correspond to B2B marketers and population 2 correspond to B2C marketers. Choose the correct null and alternative hypotheses below. O A. Ho: T1 2 T2 B. Ho: T STh2 H1: Tq T2 C. Ho: Tq # T2 H1: Tq = T2 O D. Ho: T4 = T2 Determine the test…

A survey was conducted of two types of marketers. The first type being marketers that focus primarily on attracting business (B2B), and the second type being marketers that primarily target consumers (B2C). It was reported that 518 (88%) of B2B and 250 (61%) of B2C marketers commonly use a business social media tool. The study also revealed that 313 (53%) of B2B marketers and 243 (60%) of B2C marketers commonly use a video social media tool. Suppose the survey was based on 589 B2B marketers and 407 B2C marketers. Complete parts (a) through (c) below. Determine a conclusion. the null hypothesis. There of a difference between B2B marketers and B2C marketers in the proportion of the business social media tool. b. Find the p-value in (a) and interpret its meaning. p-value = (Type an integer or a decimal. Round to three decimal places as needed.) Interpret the p-value. If the proportion of B2B marketers that use the business social media tool the proportion of B2C marketers that use the…

A survey was conducted of two types of marketers. The first type being marketers that focus primarily on attracting business​ (B2B), and the second type being marketers that primarily target consumers​ (B2C). It was reported that 518 ​(88​%) of B2B and 246​(59​%) of B2C marketers commonly use a business social media tool. The study also revealed that 301​(51​%) of B2B marketers and 248​(59​%) of B2C marketers commonly use a video social media tool. Suppose the survey was based on 590 B2B marketers and 420 B2C marketers. Complete parts​ (a) through​ (c) below.   At the 0.05 level of​ significance, is there evidence of a difference between B2B marketers and B2C marketers in the proportion that commonly use the business social media​ tool? Let population 1 correspond to B2B marketers and population 2 correspond to B2C marketers. Choose the correct null and alternative hypotheses below.     A.H0​:π1=π2 H1​: π1≠π2   BH0​:π1≥π2 H1​:π1<π2   C.H0​:π1≤π2 H1​:π1>π2…

Rocky Mountain National Park is a popular park for outdoor recreation activities in Colorado. According to U.S. National Park Service statistics, 46.7% of visitors to Rocky Mountain National Park in 2018 entered through the Beaver Meadows park entrance, 24.3% of visitors entered through the Fall River park entrance, 6.3% of visitors entered through the Grand Lake park entrance, and 22.7% of visitors had no recorded point of entry to the park (U.S. National Park Service website). Consider a random sample of 175 Rocky Mountain National Park visitors. Use the normal approximation of the binomial distribution to answer the following questions. What is the probability that at least 75 visitors had a recorded entry through the Beaver Meadows park entrance? What is the probability that at least 70 but less than 80 visitors had a recorded entry through the Beaver Meadows park entrance? What is the probability that fewer than 10 visitors had a recorded entry through the Grand Lake park…

The 2016 Global Information Security Workforce Study(GISWS) surveyed information security professionals regarding trends and issues affecting their professions and careers. In the study, women were asked about their impact on the security posture of their organization. Twenty-eight percent of women indicated that their opinions are not valued. When comparing women who did not feel valued and women who did feel valued, the most substantial difference concerning training and leadership programs. Forty-seven percent of women that feel undervalued say their organization does not provide adequate training and leadership development resources, whereas 61% of women who do feel valued in their position indicate that their organizationdoes provide adequate training and leadership development resources.If a woman is selected at random and that woman indicates that her organization does not provide adequate training and leadership development resources, what is the probability that this woman…

Cincinnati Paint Company sells quality brands of paints through hardware stores throughout the United States. The company maintains a large sales force who call on existing customers and look for new business. The national sales manager is investigating the relationship between the number of sales calls made and the miles driven by the sales representative. Also, do the sales representatives who drive the most miles and make the most calls necessarily earn the most in sales commissions? To investigate, the vice president of sales selected a sample of 25 sales representatives and determined:  The amount earned in commissions last month (y) The number of miles driven last month (x1) The number of sales calls made last month (x2)  The information is reported below.  Commissions ($000) Calls Driven Commissions ($000) Calls Driven 23 68 2,372 39 188 3,291 14 30 2,229 44 218 3,103 34 136 2,733 29 105 2,123 39 180 3,353 38 162 2,794 24 77 2,291 37 154 3,209 47 186 3,451 15 25…

Cincinnati Paint Company sells quality brands of paints through hardware stores throughout the United States. The company maintains a large sales force who call on existing customers and look for new business. The national sales manager is investigating the relationship between the number of sales calls made and the miles driven by the sales representative. Also, do the sales representatives who drive the most miles and make the most calls necessarily earn the most in sales commissions? To investigate, the vice president of sales selected a sample of 25 sales representatives and determined:   The amount earned in commissions last month (y) The number of miles driven last month (x1) The number of sales calls made last month (x2)   The information is reported below.   Commissions ($000) Calls Driven Commissions ($000) Calls Driven 22 143 2,375 38 150 3,291 13 132 2,228 45 145 3,103 33 148 2,735 29 147 2,122 39 146 3,354 38 146 2,795 24 142 2,291 38 153 3,213 48 142 3,449…

Pew Research Center is a nonpartisan polling organization that provides information about issues, attitudes, and trends shaping America. In a poll, Pew researchers found that 73% of teens aged 13–17 have a smartphone, 15% have a basic phone and 12% have no phone. The study also asked the respondents how they communicated with their closest friend. Of those with a smartphone, 58% responded texting, 17% social media and 10% phone calls. Of those with no smartphone, 25% responded texting, 29% social media and 21% phone calls.† Do you think the Pew researchers conducted a census or a sample survey to obtain their results? Why? Pew Research conducted a sample survey. A census would not have provided realistic information on such a large population. Pew Research conducted a census. A sample survey would not have provided realistic information on such a large population.     Pew Research conducted a census. It would not have been practical to conduct a sample survey on such a large…