Question

Question 5: (20 marks) For the following questions, state the null hypothesis and alternative hypothesis, and...

Question 5: For the following questions, state the null hypothesis and alternative hypothesis, and
choose the correct statistical test from the following list.


(a) One sample test for population mean
(b) One sample test for population proportion
(c) Two-independent-sample t-test
(d) Paired-sample t-test.

(3) A study claims people now spend, on average, more time on the Internet than they do watching television.
You want to support this claim. Let 1 be the mean time spent on the Internet and 2 be the mean time
spent on watching television.


(4) A study claims the average age for a community college student is over 27. You want to support this claim.

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Question 5: (20 marks) For the following questions, state the null hypothesis and alternative hypothesis, and...
Question 5: For the following questions, state the null hypothesis and alternative hypothesis, and choose the correct statistical test from the following list. (a) One sample test for population mean (b) One sample test for population proportion (c) Two-independent-sample t-test (d) Paired-sample t-test. (1) You want to support the claim that male bass singers are taller than male tenor singers. Let 1 be mean height of male bass singers and 2 be mean height of male tenor singers. (2) You...
State the null (H0) and alternative (Ha) hypothesis for each of the following cases: a.) An...
State the null (H0) and alternative (Ha) hypothesis for each of the following cases: a.) An investigative reporter for the Chicago Tribune reports that the average spending by American adults during the six-day period after Thanksgiving, spanning Black Friday weekend through Cyber Monday, is $100. You decide to conduct a hypothesis test to verify this report. b.) The average wait time at an ER is known to be 128 minutes. A local newspaper claims that the average wait time at...
A sociologist claims that children ages 3​ - 12 spent more mean time watching television in...
A sociologist claims that children ages 3​ - 12 spent more mean time watching television in 1981 than children ages 3​ - 12 do today. A study was conducted in 1981 and a similar study was recently conducted. At   alphaα ​= 0.025, can you support the​ sociologist's claim? Sample 1 Sample 2 1981 Study 2.5 2.1 2.3 Recent Study 1.9 2.0 1.6 1.6 2.6 2.1 1.5 2.1 2.3 2.2 1.0 1.9 1.6 1.8 0.9 Hypotheses What are the null and...
A study conducted a few years ago claims that the adult males spend an average of...
A study conducted a few years ago claims that the adult males spend an average of 11 hours a week watching sports on television. A recent sample of 100 adult males showed that the mean time they spend per week watching sports on television is 9.50 hours with a standard deviation of 2.2 hours. a. Use the result to give a 95% confidence interval for the mean time they spend per week watching sports on television. a. Does the study...
A researcher was interested in comparing the amount of time spent watching television by women and...
A researcher was interested in comparing the amount of time spent watching television by women and by men. Independent simple random samples of 14 women and 17 men were selected, and each person was asked how many hours he or she had watched television during the previous week. The summary statistics are as follows:                                     Women          Men   .         Sample Mean         12.9             16.4         Sample SD             4.0                4.2         Sample Size            14                 17 This sample data is then used to test the claim that the mean time spent watching television by women...
Twenty (20) randomly selected students were asked how many hours they spend each week watching television....
Twenty (20) randomly selected students were asked how many hours they spend each week watching television. They reported a sample mean and standard deviation of 26.4 and 8.2 respectively. Assume that the population of times is approximately normal. Test at the 0.05 level the claim that the mean number of hours per week spent by all students is greater than 20. The null and alternative hypothesis to conduct the test is
Hypothesis Testing For 1-3 below simply set up the Null (Ho) and Alternative (H1) Hypothesis. 1/...
Hypothesis Testing For 1-3 below simply set up the Null (Ho) and Alternative (H1) Hypothesis. 1/ Test the claim that less than 10% of households own a boat. 2/ Test the claim that the mean body weight of college students is greater than 160 lbs. 3/ Test the claim that the majority of people prefer iphones. 4/ For 4 and 5 below, perform the hypothesis test. (a) Set up the null and alternative hypothesis (b) Calculate the test statistic (c)...
A graduate student believed that, on the average, college students spend more time on the Internet...
A graduate student believed that, on the average, college students spend more time on the Internet compared to the rest of the population. She conducted a study to determine if her hypothesis was correct. The student randomly surveyed 25 students and found that the average amount of time spent on the Internet was 11.75 hours per week with a SD = 1.5 hours. The last census found that, on the average, people spent 11 hour per week on the Internet....
For each of the following, state the null hypothesis and the alternative hypothesis: a. Means sales...
For each of the following, state the null hypothesis and the alternative hypothesis: a. Means sales of Celebrity Living over the years have been 1.25 million per week. A manager claims that sales have increased. H0: μ           less-than or equal to, less-than, greater-than or equal to  1.25 H1: μ greater-than, equal to, not equal to  1.25 b. The manager of Little Cakes Inc. states that an average of 1,500 muffins is sold each week in the retail store. One of the...
Conduct a hypothesis test for each problem, using the traditional method. Show the 5 steps and...
Conduct a hypothesis test for each problem, using the traditional method. Show the 5 steps and all work for each hypothesis test. Be sure you select the correct test to use for each problem. 5. A reading group claims that Americans read more as they grow older. A random sample of 65 Americans age 60 or older read for a mean length of 63.8 minutes per day, with a population standard deviation of 15.5 minutes per day. A random sample...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT