Develop a 95 confidence interval for the population slope 3.
What will be an ideal response?
Q. 2The sales forecast for the 4th quarter of year 8 is approximately ________ in 000's.
A) 169 units
B) 179 units
C) 189 units
D) 209 units
Q. 3A professor of statistics wants to test that the average amount of money a typical college student spends per day during spring break is over 70. Based upon previous research, the population standard deviation is estimated to be 17.32.
The professor surveys 35 students and finds that the mean spending is 72.43. Which of the following statements is most accurate?A) fail to reject the null hypothesis at 0.10
B) reject the null hypothesis at = 0.10
C) reject the null hypothesis at = 0.05
D) reject the null hypothesis at = 0.01
Q. 4Find the probability that a given student spends more than 8 minutes with the professor.
What will be an ideal response?
Q. 5For the given data, what is/are the critical value(s) for testing the hypotheses at 0.05 level of significance?
A) +1.943
B) 2.447
C) +1.645
D) -1.645
Q. 6A test that considers both skewness and kurtosis is called the Anderson-Darling test for normality.
Indicate whether the statement is true or false
Q. 7The standard deviation of the sampling distribution of the sample mean is also called the:
A) minimum sample factor.
B) standard error of the mean.
C) finite population correction factor.
D) population standard deviation.
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