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3. (5pts) It is believed that Lake Tahoe Community College (LTCC) Intermediate Algebra students get less...
It is believed that Lake Tahoe Community College (LTCC) Intermediate Algebra students get less than seven...
It is believed that Lake Tahoe Community College (LTCC) Intermediate Algebra students get less than seven hours of sleep per night, on average. A survey of 22 LTCC Intermediate Algebra students generated a mean of 7.24 hours with a standard deviation of 1.93 hours. A test is conducted to test the claim that LTCC Intermediate Algebra students get less than seven hours of sleep per night, on average. What are the hypotheses for this test? Group of answer choices Ho: ...
A scientific study was conducted to determine the hours of sleep that college students get per...
A scientific study was conducted to determine the hours of sleep that college students get per night. The college students surveyed slept an average of 7.8 hours per night. The margin of error of the survey was 0.5 hours. Construct a confidence interval for the average hours of sleep per night that college students get.
A recent article in a college newspaper stated that college students get an average of 5.5...
A recent article in a college newspaper stated that college students get an average of 5.5 hrs of sleep each night. A student who was skeptical about this value decided to conduct a survey by randomly sampling 25 students. On average, the sampled students slept 6.25 hours per night. Identify which value represents the sample mean and which value represents the claimed population mean
It is recommended that adults get 8 hours of sleep each night. A researcher hypothesized college...
It is recommended that adults get 8 hours of sleep each night. A researcher hypothesized college students got less than the recommended number of hours of sleep each night, on average. The researcher randomly sampled 20 college students and calculated a sample mean of 7.5 hours per night. If the researcher wanted to perform a one-sample t-test, which of the following is a correct statement? Choose the correct answer below. A. The distribution of sample means will be normal even...
A random sample of community college students was asked the number of hours they sleep on...
A random sample of community college students was asked the number of hours they sleep on a typical week-night during a given academic term. The sample data are as follows: 8 6 4 5 3 7 S 4 3 4 4 5 6 8 7 7 7 3 3 4 What is the 90% confidence interval estimate for the true mean amount of sleep time per night spent by community college students during a academic term? a) The data give...
Sleep (Raw Data, Software Required): Assume the general population gets an average of 7 hours of...
Sleep (Raw Data, Software Required): Assume the general population gets an average of 7 hours of sleep per night. You randomly select 35 college students and survey them on the number of hours of sleep they get per night. The data is found in the table below. You claim that college students get less sleep than the general population. That is, you claim the mean number of hours of sleep for all college students is less than 7 hours. Test...
Sleep: Assume the general population gets an average of 7 hours of sleep per night. You...
Sleep: Assume the general population gets an average of 7 hours of sleep per night. You randomly select 45 college students and survey them on their sleep habits. From this sample, the mean number of hours of sleep is found to be 6.89 hours with a standard deviation of 0.40 hours. You claim that college students get less sleep than the general population. That is, you claim the mean number of hours of sleep for all college students is less...
Christine is the dean of students at a college. She is concerned about the amount of...
Christine is the dean of students at a college. She is concerned about the amount of sleep students are getting. In particular, Christine is making an inquiry on whether students who are enrolled in the pre-med program are getting less sleep on average compared to students who are enrolled in other programs. The average amount of sleep per night for a random sample of 10 pre-med students and 10 students in other programs is recorded. Assume that the population standard...
The average adult is supposed to get 8 hours of sleep a night. A "sleep habits"...
The average adult is supposed to get 8 hours of sleep a night. A "sleep habits" survey answered by 28 randomly selected New Yorkers contained the question "How much sleep do you get per night?" The sample average was 7.75 hours, with a corresponding sample standard deviation of 0.8 hours. Conduct a hypothesis test to see if there is evidence that New Yorkers (who live, after all, in "the city that never sleeps") on average get less than 8 hours...
3. Suppose a random sample of 300 U.S. college students was obtained and the average number...
3. Suppose a random sample of 300 U.S. college students was obtained and the average number of hours of sleep per night for each individual was determined. It was then determined that those students who averaged at least 7 hours of sleep per night had a higher cumulative gpa, on average, than those who did not Define the following: (a) The population(s) of interest.(The independent variables) (b) The variable measured.(The dependent variable). Is this an observational study or experiment? (c)...
A random sample of community college students was asked the number of hours they sleep on a typical week-night during a given academic term. The sample data are as follows: 8 6 4 5 3 7 S 4 3 4 4 5 6 8 7 7 7 3 3 4 What is the 90% confidence interval estimate for the true mean amount of sleep time per night spent by community college students during a academic term? a) The data give...
3. Suppose a random sample of 300 U.S. college students was obtained and the average number of hours of sleep per night for each individual was determined. It was then determined that those students who averaged at least 7 hours of sleep per night had a higher cumulative gpa, on average, than those who did not Define the following: (a) The population(s) of interest.(The independent variables) (b) The variable measured.(The dependent variable). Is this an observational study or experiment? (c)...
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