Question

QUESTION 10 Amy guesses the percentage of her Instagram followers who have been to out of...

QUESTION 10

  1. Amy guesses the percentage of her Instagram followers who have been to out of the United States is 20%. She takes a sample of 320 followers and find that 55 of them have been out of the United States. Use this information to calculate the test statistic for Amy's hypothesis test, to test whether her guess was reasonable or not.

A.

-1.80

B.

-1.25

C.

-0.74

D.

-0.17

QUESTION 11

  1. A person would like to use a hypothesis test to answer a research question. Assuming 95% confidence in their work (the most commonly used level), they will need a test statistic larger than what approximate value to reject the null hypothesis?

A.

About 1

B.

About 2

C.

About 3

D.

About 4

QUESTION 12

  1. A person would like to use a hypothesis test to answer a research question. Assuming 95% confidence in their work (the most commonly used level), they will need a p-value smaller than what to reject their null hypothesis?

A.

.10

B.

.05

C.

.01

D.

.0001

Homework Answers

Answer #1

any query, please ask

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
QUESTION 1 Joyce works in a toy factory maintaining machines. Machines should inject exactly 500 grams...
QUESTION 1 Joyce works in a toy factory maintaining machines. Machines should inject exactly 500 grams of plastic into a mold to make a toy plane. Joyce wonders if these toy machines might need cleaning, but it's a lot of work taking apart the machines to do a proper job. She grabs planes from 24 different machines at random and weighs them. Her average is 495 grams. She knows there's a standard devation of 10 grams for all machines (Joyce...
For the following question, you need to check the requirements and identify the null hypothesis, alternative...
For the following question, you need to check the requirements and identify the null hypothesis, alternative hypothesis, test statistic, P-value, critical values, then state the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim. Assuming the sample is independent simple random sample. Use both the P-value method and critical value method. In a study of Burger King driver-through orders, it was found that 264 orders were accurate and 54 were not accurate. For...
2. Using the same information as question one, compute a 99% confidence interval for the mean...
2. Using the same information as question one, compute a 99% confidence interval for the mean difference. Based on the interval, make a statistical decision about the null hypothesis and briefly state why you came to your conclusion. 1. Professional sports teams use the vertical jump to gauge the strength of athletes. This test requires a person to stand flat footed and leap vertically into the air and touch the highest reachable mark. A typical person in the population can...
QUESTION 9 9) A researcher is testing the claim that men and women who were arrested...
QUESTION 9 9) A researcher is testing the claim that men and women who were arrested last year have the same number of prior arrests. Data were analyzed and the following SPSS output was given. a) State an Alternative or Research Hypothesis that is being tested with the sample data you have T-Test results for below. b) Are the variances equal for these two groups? c) Report the test statistic value and your decision at a 5% significance level about...
Joyce works in a toy factory maintaining machines. Machines should inject exactly 500 grams of plastic...
Joyce works in a toy factory maintaining machines. Machines should inject exactly 500 grams of plastic into a mold to make a toy plane. Joyce wonders if these toy machines might need cleaning, but it's a lot of work taking apart the machines to do a proper job. She grabs planes from 24 different machines at random and weighs them. Her average is 495 grams. She knows there's a standard devation of 10 grams for all machines (Joyce has been...
Question Set 2: Mean Test Score A course coordinator is examining scores on an exam. In...
Question Set 2: Mean Test Score A course coordinator is examining scores on an exam. In a representative sample of 35 students, the mean Test score was 87.9 points with a standard deviation of 6.8 points. A. Use Minitab Express to determine if there is evidence that the mean Test score is different from 90 points in the population of all test takers. Use the five-step hypothesis testing procedure outlined below. Remember to include all relevant Minitab Express output and...
Let x represent the average annual salary of college and university professors (in thousands of dollars)...
Let x represent the average annual salary of college and university professors (in thousands of dollars) in the United States. For all colleges and universities in the United States, the population variance of x is approximately σ2 = 47.1. However, a random sample of 19 colleges and universities in Kansas showed that x has a sample variance s2 = 77.0. Use a 5% level of significance to test the claim that the variance for colleges and universities in Kansas is...
Let x represent the average annual salary of college and university professors (in thousands of dollars)...
Let x represent the average annual salary of college and university professors (in thousands of dollars) in the United States. For all colleges and universities in the United States, the population variance of x is approximately σ2 = 47.1. However, a random sample of 20 colleges and universities in Kansas showed that x has a sample variance s2 = 84.0. Use a 5% level of significance to test the claim that the variance for colleges and universities in Kansas is...
Let x represent the average annual salary of college and university professors (in thousands of dollars)...
Let x represent the average annual salary of college and university professors (in thousands of dollars) in the United States. For all colleges and universities in the United States, the population variance of x is approximately σ2 = 47.1. However, a random sample of 19 colleges and universities in Kansas showed that x has a sample variance s2 = 77.0. Use a 5% level of significance to test the claim that the variance for colleges and universities in Kansas is...
Let x represent the average annual salary of college and university professors (in thousands of dollars)...
Let x represent the average annual salary of college and university professors (in thousands of dollars) in the United States. For all colleges and universities in the United States, the population variance of x is approximately σ2 = 47.1. However, a random sample of 18 colleges and universities in Kansas showed that x has a sample variance s2 = 78.4. Use a 5% level of significance to test the claim that the variance for colleges and universities in Kansas is...