User Account

All Pages

On a standardized test of spatial ability

Assignment Help Basic Statistics
Reference no: EM13510467

A researcher hypothesized that individuals who listen to classical music will score differently from the general population on a test of spatial ability. On a standardized test of spatial ability, u = 58. A random sample of 14 individuals who listen to classical music is given the same test. Their scores on the tst are 52, 59, 63, 65, 58, 55, 62, 63, 53, 59, 57, 61, 60, 59

a. is this one or two tailed test?
b. What are Ho and Ha for this study?
c. Compute t obt.
d. What is tcv?
e. should Ho be rejected? What should the researcher conclude?
f. determine the 95% confidence interval for the population mean, based on the sample mean.

Reference no: EM13510467

Questions Cloud

Nothing to do with someone’s psychological well-being : The predominant form of the family in premodern western Europe was the extended family. All sociological research projects must follow the same steps precisely. Weight has nothing to do with someone’s psychological well-being
Digital technologies democratized the art of photography : Has the development of digital technologies democratized the art of photography? How has this affected our appreciation of the photographer as artist and photography as an art form? Explain using specific examples.
Criminologist developed a test to measure recidivism : A Criminologist developed a test to measure recidivism, where low scores indicated a lower probability of repeating the undesirable behavior. the test is normede so that it has a mean of 140 and standard deviation of 40. When the dominant culture ..
Proportions of male smokers and female smokers are equal. : • A student of the author surveyed her friends and found that among 20 males, 4 smoke and among 30 female friends, 6 smoke. Give two reasons why these results should not be used for a hypothesis test of the claim that the proportions of male sm..
On a standardized test of spatial ability : A researcher hypothesized that individuals who listen to classical music will score differently from the general population on a test of spatial ability. On a standardized test of spatial ability, u = 58. A random sample of 14 individuals wh..
Goals of socialization : What kind of power is exhibited by a police officer who pulls over a suspect after a high-speed pursuit? Which of the following is NOT one of the goals of socialization?
Red lights on his drive to school : a) On Monday, Pan was not stopped by any red lights on his drive to school. What is the probability that his drive was between 12 and 14.5 minutes on Monday?
The initial obstacle participant observers encounter : The initial obstacle participant observers encounter is. While a dishonest judge must pretend to be an honest judge, even an honest judge must play the role of "honest judge" for an audience in order to interact and work with others effectively. Wh..
The producers of a new toothpaste claim : The producers of a new toothpaste claim that it prevents more cavities than other brands of toothpaste. A random sample of 60 people used the new toothpaste for 6 months. The mean number of cavities at their next checkup is 1.5. In general ..

Reviews

Write a Review

Basic Statistics Questions & Answers

  Confidence level and sample size

A film alliance used a random sample of 50 U.S. citizens to estimate that the typical American spent 78 hours watching videos and DVDs last year. The standard deviation of this sample was 9 hours.

  Financial institutions assets and pretax profit

A study of 20 worldwide financial institutions showed the correlation between their assets and pretax profit to be .86. At the .05 significance level

  1a manufacturer of infant formula is running an experiment

1.a manufacturer of infant formula is running an experiment using the standard control formula and two new formulas a

  Determining mean number of passengers

The mean number of passengers per flight is 160 with a standard deviation of 20. The aircraft used for the route has 200 seats.

  Estimating the difference between the population means

Use a 5% significance level to test the claim that there appears to be a difference in the effectiveness of the two diets.

  Calculate descriptive statistics for each stock

Calculate descriptive statistics for each stock and the S&P 500. Comment on your results. Which stocks are the most volatile? Calculate the value of beta for each stock.

  Average rate of two per hour for the service

Michael's Tire Company performs free tire balance and rotation for the life of any tires purchased there on a first-come, first-served basis. One mechanic handles this and can usually complete the job in an average of 20 minutes. Customers arrive ..

  How many boy scouts have weights

In a survey of the 3000 boy scouts in the National Capital Area Council (NCAC), it is found that they have a mean weight of 135 lbs with a standard deviation of 15 lbs. How many of the boy scouts have weights between 120 lbs and 150 lbs.?

  Confidence interval for the rate of effectiveness

Without constructing the 98% confidence interval for the rate of effectiveness, would you expect the interval to be longer or shorter compared to the 95% confidence interval? Why?

  Critical region and critical values for z

Determine the critical region and critical values for z that would be used to test the null hypothesis at the given level of significance, as described in each of the following:

  Standard deviations below and above the mean

According to the empirical rule, if the data from a "bell-shaped" normal distribution ______ percent of the observation will be contained between 2 standard deviations below the mean and 2 standard deviations above the mean.

  What happens when the sample standard deviations get larger

Describe what happens when the sample standard deviations get larger and repeat Part a with samples of size 150.

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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