Which type of constraint is required in a Linear Programing minimization problem to ensure a non-zero solution?

a. At least one less-than-or-equal -to

b. At least one dummy (review)

c. At least one non-equal-to

d. At least one greater-than-or-equal -to

When a researcher fails to reject a null hypothesis when it should

have been rejected, the probability of a Type II error is __________.

Dr. Bill Board designs a 2 X 2 between-subjects factorial design,

where Factor A is word frequency (low or high) and Factor B is category cues (no cues or cues). Assume that the data are interval. What type of statistic is needed to analyze the data?

Q. In a survey, 11 people were asked how much they spent on their

child's last birthday gift. The results were roughly bell-shaped with a mean of $34 and standard deviation of $3. Construct a confidence interval at a 95% confidence level.


Give your answers as
x¯±ME to one decimal place.?
Q. If n=10
n=10 x¯=32, and s=15, construct a confidence interval at a 98% confidence level. Assume the data came from a normally distributed population.


Give your answers to one decimal place?