A concerned group of citizens wanted to determine whether the proportion of armed robberies in the state of Texas was different in 2011 than in 2010. Research shows that of the 113,231 violent crimes in Texas in 2010, 7,622 of them were armed robberies. In 2011, 7,439 of the 104,873 violent crimes were in the armed robery category. Test at the 0.1 significance level. Preliminary: Verify nˆp(1−ˆp)≥10. Round your answer to one decimal place. n2010ˆp(1−ˆp)=______________ n2011ˆp(1−ˆp)=_____________    A veterinarian is interested in researching the proportion of men and women cat owners and believes that the proportion of men cat owners is significantly different than the proportion of women cat owners. The veterinarian decides to obtain two independent samples of men and women cat owners and finds from one sample of 60 men, 40% owned cats. In the second sample of 80 women, 55% owned cats. Test the veterinarian's belief at the α=0.1 significance level. Test the claim: Find the p-value. Round to four decimal places. p-value =    A research study was conducted about gender differences in sexting, the sending of sexually explicit messages or images by cell phone. A researcher believes that the proportion of girls sexting is less than the proportion of boys sexting and decides to collect data in the spring of 2010 among a random sample of middle and high school students in a large school district in the southern United States. The researcher finds 156 out of 2,169 girls are sexting and 183 out of 2,231 boys are sexting. Is there enough evidence to support the researcher's belief that the proportion of girls sexting is less than the proportion of boys sexting? Test at the 0.05 level of significance. Preliminary: Test the claim: Find the p-value. Round to four decimal places.

A concerned group of citizens wanted to determine whether the proportion of armed robberies in the state of Texas was different in 2011 than in 2010. Research shows that of the 113,231 violent crimes in Texas in 2010, 7,622 of them were armed robberies. In 2011, 7,439 of the 104,873 violent crimes were in the armed robery category. Test at the 0.1 significance level.

Preliminary:

1. Verify nˆp(1−ˆp)≥10. Round your answer to one decimal place.
   
   n2010ˆp(1−ˆp)=______________
   n2011ˆp(1−ˆp)=_____________ 

A veterinarian is interested in researching the proportion of men and women cat owners and believes that the proportion of men cat owners is significantly different than the proportion of women cat owners. The veterinarian decides to obtain two independent samples of men and women cat owners and finds from one sample of 60 men, 40% owned cats. In the second sample of 80 women, 55% owned cats. Test the veterinarian's belief at the α=0.1 significance level.

Test the claim:

Find the p-value. Round to four decimal places.
p-value = 

A research study was conducted about gender differences in sexting, the sending of sexually explicit messages or images by cell phone. A researcher believes that the proportion of girls sexting is less than the proportion of boys sexting and decides to collect data in the spring of 2010 among a random sample of middle and high school students in a large school district in the southern United States. The researcher finds 156 out of 2,169 girls are sexting and 183 out of 2,231 boys are sexting. Is there enough evidence to support the researcher's belief that the proportion of girls sexting is less than the proportion of boys sexting? Test at the 0.05 level of significance.

Preliminary:

1. • Test the claim:

1. Find the p-value. Round to four decimal places.
   p-value = ______________