selected, arnd the average class size was found to be 35.6 students Assume that the standard...
Suppose a university advertises that its average class size is 31 or less. A student organization is concerned that budget cuts have led to increased class sizes and would like to test this claim. A random sample of 42 classes was selected, and the average class size was found to be 33.8 students. Assume that the standard deviation for class size at the college is 88 students. Using alpha=0.05, complete parts a and b below. a. Does the student organization...
Suppose a university advertises that its average dlass size is 33 or less. A student onganization is concerned that budget cuts have led to increased class sizes and would like to test this claim. A random sample of 43 ciasses was selected, and the average class size was found to be 36.2 students. Assume that the standard deviation for class size at the college is 8 students. Using a 0.05, complete parts a and b below a. Does the student...
Suppose a university advertises that its average class size is 35 or less. A student organization is concerned that budget cuts have led to increased class sizes and would like to test this claim. A random sample of 43 classes was selected, and the average class size was found to be 36.1 students. Assume that the standard deviation for class size at the college is 7 students. Using α=0.10, complete parts a - e below. a) Determine the null and...
Suppose a university advertises that its average class size is 34 or less. A student organization is concerned that budget cuts have led to increased class sizes and would like to test this claim. A random sample of 40 classes was selected, and the average class size was found to be 37.3 students. Assume that the standard deviation for class size at the college is 9 students. Using a 0.05, complete parts a and b below. a. Does the student...
Suppose a university advertises that its average class sizes 35 or less. A student organization is concerned that budget cuts have led to increased class sizes and would like to test this claim. A random sample of 40 classes was selected, and the average class size was found to be 37. students. Assume that the standard deviation for class size of the college is 9 students. Using a = 0.05, complete parte a and b below a. Does the student...
Suppose a university advertises that its average class size is 35 or less. A student organization is concerned that budget cuts have led to increased class sizes and would like to test this claim. A random sample of 40 classes was selected, and the average class size was found to be 38.1 students. Assume that the standard deviation for class size at the college is 9 students. Using a = 0.01, complete parts a and b below. a. Does the...
According to a lending institution, students graduating from college have an average credit card debt of $4100. A random sample of 40 graduating seniors was selected, and their average credit card debt was found to be $4428. Assume the standard deviation for student credit card debt is $1,300. Using alphaαequals=0.01, complete parts a through c. a) Does this sample provide enough evidence to challenge the findings by the lending institution? Determine the null and alternative hypotheses. Upper H 0H0: muμ...
Suppose a university advertises that its average class size is 30 or less. A student organization is concerned that budget cuts have led to increased class sizes and would like to test this claim. A random sample of 42 classes was selected, and the average class size was found to be 33.1 students. Assume that the standard deviation for class size at the college is 8 students. Using alpha equals 0.10 , complete parts a and b below. a. Does...
At a certain college, it is estimated that at most 25% of the students ride bicycles to class. Does this seem to be a valid estimate if, in a random sample of 80 college students, 25 are found to ride bicycles to class? Use a 0.01 level of significance. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table. Let a success be a student that...
Assume that a simple random sample has been selected from a normally distributed population and test the given claim. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. A simple random sample of 2525 filtered 100 mm cigarettes is obtained, and the tar content of each cigarette is measured. The sample has a mean of 19.419.4 mg and a standard deviation of 3.553.55 mg. Use a 0.050.05 significance level to...