If two variables have a correlation coefficient equal to -0.60 from a sample size of 5, we can conclude that the population correlation coefficient is less than zero using = 0.05.
Indicate whether the statement is true or false
Q. 2Sampling without replacement means that once a member of a population is chosen for a sample, it cannot be chosen again for the same sample.
Indicate whether the statement is true or false
Q. 3The Wall Street Journal reported that the average amount of time that a French person spends eating lunch at a restaurant is 22 minutes.
Perform a hypothesis test to determine if a difference exists between the average time an American spends eating lunch when compared to a person from France. The following data represents the time, in minutes, that random French and American diners spent at lunch. Assume that the population variances are equal.American 21 17 17 20 25 16 20 16French 24 18 20 28 18 29 17 If Population 1 is defined as French diners and Population 2 is defined as American diners, the 90 confidence interval for the difference in population means is ________.A) (0.75, 6.75)
B) (1.93, 4.06)
C) (1.52, 4.49)
D) (3.36, 9.36)
Q. 4A(n) ________ in ANOVA describes the cause of the variation in the data.
A) error rate
B) level
C) block
D) factor
Q. 5If two variables have a correlation coefficient equal to +0.70 from a sample size of 9, we can conclude that the population correlation coefficient is greater than zero using = 0.05.
Indicate whether the statement is true or false
Q. 6Measuring the entire population is usually preferred over measuring a sample from the population.
Indicate whether the statement is true or false
Quick Reply
