Historically 20% of potential customers bought a certain brand of soap. To increase sales, the company used an extensive advertising campaign. At the end of the campaign, a sample of 400 customers was surveyed and it was found that 92 had purchased the company's soap. Does this indicate that the proportion of customers of this brand of soap has increased, at the .1 level?

Earth takes in thermal energy from the sun in a process called . sunlight strikes earth’s surface at different angles. this angle is called the angle of . btw its

What are the two main ideas of this passage? museum experts feel that museums must change to attract visitors. museum experts care more about the number of visitors than about history. museums that display artworks and exhibits do not make families welcome. museums like colonial williamsburg make learning about the past fun. museums in the united states are different than in other countries.

Afish fossil is found in a rock. a foot bone and tooth are found in an older layer of the same rock. what can scientists learn from the rock? a) the area changed from land to water. b) the area changed from water to land. c) the area has always been land. d) the area was once an ocean.