Mina is waiting in line at the Department of Motor Vehicles (DMV). Her wait time is in the 85th percentile of wait times.

An insurance company estimates 80% of its policies are standard and 20% are premiere.  It also estimates 75% of standard policies and 85% of premiere policies will renew. Using the company's estimates, calculate the percentage of policies that will not renew.

Fewer than 91% of adults have a cell phone. In a reputable poll of 1214 adults, 86% said that they have a cell phone. Find the value of the test statistics.

IT'S NOT FOR A GRADE!! Please answer.

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?

An outdoor hot dog vendor sells an average of 70 hot dogs per day in dry weather and an average of 25 hot dogs in rainy weather. If the weather in this area is rainy 20% if the time, determine the expected number of hot dogs sold per day.

Why does the use of multiple t tests increases?

 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    sports    psychologist    wants    to    compare    the    running    time    for    athletes vs    non-athletes    while    running    1    mile.    He    collects    data    from    226    non-athletes    and    166    athletes and    analyzes    it    using    SPSS.