MTH review for final:

QUESTION 11 The shape of the sampling distribution of P is approximately normal provided np(1 - p) is O >0 OSO O 2 10 O =0 O s 10 QUESTION 12 A value of a statistic that estimates the value of a parameter is called O A point estimate O a measure O the deviating estimate O a Z value O a correlation coefficientQUESTION 13 One goal of inferential statistics is to infer the value of O a sample statistic from a population para meter 0 a population parameter from a sample statistic O the size ofa sample. 0 the size ofa population. O the differences between populations and samples. QUESTION 14 M1 -p) is Suppose that the sampling distribution of a proportion. ,6, has a standard deviation given by 0'3. The quantity H O none of the above QUESTION 15 What is the mean of a sampling distribution of a proportion when the population proportion is p = 0.3 and the sample size n = 100? O.003 O.03 O .3 O 30 300 QUESTION 16 By what factor must you change the sample size of a sample proportion in order to halve the standard deviation of its distribution? O 1/2 O 1/4 O2 0 4 01QUESTION 17 Suppose test completion times of students on exam 3 is approximately normally distributed. Sample 10 students' completion times and find a mean completion time of 56minutes with standard deviation 7 minutes. to create a 95%confidence interval for the mean completion time of a test by students, The critical value of the reliability coeffectent is O 1.96 O 1.645 1.833 O 2.262