A survey of 78 men found that 10 have a social media account. Another survey of 51 women found that 26 have a social media account. Is the percentage of women that have a social media equal to men based on a-level of 0.07?

A recent survey reports that 22% of students take the bus to campus. If 660 students commute to campusby bus, how many students participated in the study?

In a sample of 169 students, 16 said they have donated blood. What percent of the students have donated blood?

A software company is interested in improving customer satisfaction rate from the 51% currently claimed. The company sponsored a survey of 157 customers and found that 89 customers were satisfied.

A group of 500 students take a survey about distance learning.  150 prefer distance learning.  What is the proportion of students that prefer distance learning.

In which year did Tesco have the least number of stores?

 A national forest service wanted to estimate the number of deer in a particular national park. They cotton tag 71 deer and release him back into the park. Later they selected a sample of 272 deer. Of the 272 dear, 17 were tagged, assuming that the portion of tag deer and the sample holds for all deer in the forest, what is the best estimate of the number of deer in the park? 

A health journal conducted a study to see if packaging a healthy food product like junk food would influence children's desire to consume the product. A fictitious brand of a healthy food product-sliced apples-was packaged to appeal to children. The researchers showed the packaging to a sample of 348 school children and asked each whether he or she was willing to eat the product. Willingness to eat was measured on a 5-point scale, with 1 = "not willing at all" and 5 = "very willing." The data are summarized as x = 3.56 and s=2.19. Suppose the researchers knew that the mean willingness to eat an actual brand of sliced apples (which is not packaged for children) is µ = 3. Complete parts a and b below. a. Conduct a test to determine whether the true mean willingness to eat the brand of sliced apples packaged for children exceeded 3. Use α = 0.10 to make your conclusion. State the null and alternative hypotheses. Ho: H₂:

Fewer than 91% of adults have a cell phone. In a reputable poll of 1230 adults, 81% said that they have a cell phone. Find the value of the test statistic, rounding two decimals.

In a sample of 600 college students, 87.2% said they graduated from high school. How many of the students graduated from high school?