Statistical cause and effect

Reference no: EM13104327

Psychologists wanted to test whether a certain accelerated class' IQ was different than average. There were 25 students in the class; their mean IQ score was 108. In the population, the mean IQ is 100, and the standard deviation is 16. At 95% confidence interval, could you conclude that the special training has any effect on IQ of these students?

Reference no: EM13104327

Questions Cloud

Confidence interval and confidence coefficient : The January 17, 1994 issue of Time magazine reported that 58% of adult Americans said yes to the question "If you or your spouse were pregnant, would you want the unborn child tested for genetic defects?"

Explain seven cultural variables in communication process : Cable channels such as Lifetime and Spike TV each target a specific market segment. Identify another product marketed to a distinct target market. Explain the seven cultural variables in the communication process?

Recognize which of two paragraphs was more effective : Recognize which of two selected paragraphs was more effective, focusing on writing elements rather than opinions presented.

Upper bound or limit of confidence interval : The superintendent of a unified school district of a small town wants to make sure that no more than 5% of the students skip more than 10 days of school in a year.

Statistical cause and effect : Psychologists wanted to test whether a certain accelerated class' IQ was different than average. There were 25 students in the class; their mean IQ score was 108.

Explanation for the targeting strategy : Generally, marketers use one of three basic targeting strategies to focus on a target market: undifferentiated, concentrated, or differentiated. Locate an article that discusses the target market for a specific product.

Find the component of the weight of m : Finally is the length is unchanged but the mass is equal to 0.500kg find the period T of the pendulum that is independent of the angle.

Find the electric field strength on the axis : A charge of 3.45 µC is uniformly distributed on a ring of radius 9.5 cm. Find the electric field strength on the axis at the following locations. (a) 1.2 cm from the center of the ring N/C (b) 3.1 cm from the center of the ring N/C (c) 4.0 m from ..

Describe ikea strategy towards its suppliers : By the early 1970s IKEA had established itself as the largest furniture retailer in Sweden. What is IKEA's strategy towards its suppliers? How important is this strategy to IKEA's success?

User Account

All Pages