Assume that the null hypothesis is right

Assignment Help Other Subject
Reference no: EM13315696

Mr. Jones knows that over many years the mean Math SAT score of students who graduate from Irvine Remedial High School is 300, and the distribution is approximately normal, and the standard deviation is wellknown to be 100. He picks 16 students at random and gives them a weekly math review session for six months before they take the SAT. His sample of 16 students average 375 on the Math SAT. Conduct the usual hypothesis test. b) State the null hypothesis that would be used in this case. c) Assume that the null hypothesis is right. The distribution of scores in the population would then be _____ in shape, with a mean of ___ and a standard deviation which is ____ . d) The sampling distribution of X¯ will be ______ in shape, with a mean of ____ and a standard deviation of ______. e) What was X¯ for Mr. Jones' sample? f) What was the chance error of X¯ for Mr. Jones'? g) What is the "standardized sample mean" or "obtained z" value? h) "p" is the probability of getting a sample mean SAT as high as 375 just by chance. Estimate the value of p. i) Why do we use the z distribution in this case? j) Can Mr. Jones reject the null hypothesis at the .01 significance level?

Reference no: EM13315696

Provide a description of gender equality as it exists

Provide a description of gender equality as it exists in different cultures with two examples. Also describe your own culture and relate this to the role of gender equality

Interpret the findings derived from each analysis

What are the differences/relationships between the customers who respond the credit card offers in favor of Visa or Mastercard ( question 14) and those who prefer to choose

Very satisfied customers

Recall that “very satisfied” customers give the XYZ-Box video game system a rating that is at least 42. Suppose that the manufacturer of the XYZ-Box wishes to use the random s

How does this fit into your beliefs about leadership style

What kind of leader were you?How does this fit into your beliefs about your leadership style?Examine the attributes of leadership that may be needed for graduate level nurses.

The distribution of multiple risk vary by race/ethnicity

When considering other risk factors such as income, insurance, education, and having a regular source of care, how does the distribution of multiple risk vary by race/ethn

Identify a measurement tool you will use for data collection

What methods of data analysis will you utilize (You will not apply the statistical treatment of data for this concept paper). Identify an evaluation tool you will use during/f

Define the concepts culture lag and new technology

Define the concepts "culture lag" and "new technology". Provide an example to illustrate how the introduction of a "new technology" in society produced a condition of "cultu

Discuss how three of health literacy factors affect

Discuss how at least three of the health literacy factors in the first column affect one health outcome as identified in the second column. You must use at least two scholar

Reviews

Write a Review

 
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd