______1. A random sample of 60 items is taken producing a sample mean of 25 and a sample standard deviation of 12.25. What is the value for 95% confidence interval to estimate the population mean? ______2. a. 23.3844 24.8966 c. 28.3541 29.1359 b. 24.1144 25.8856 d. 25.8252 26.5478 Thirty trials are conducted in the Bernoulli process in which the probability of success in a given trial is 0.6. What is the value of x ? a. 7.20 b. 2.68 ______3. What is c. 5.46 d. 2.19 Z 0 score for P(Z Z 0 ) = 0.0708? a. 1.47 b. 1.35 ______4. c. 1.80 d. 1.41 The random variable x has a normal distribution with = 40 and 2 = 36. What is the value of x if P(X X 0 ) = 0.40? a. 47.86 c. 49.85 b. 41.50 d. 45.73 20. The statement of what the investigator is trying to conclude is usually placed in the _________ hypothesis. 21. The ___________ hypothesis is the hypothesis that is tested. 22. If the null hypothesis is not rejected, we conclude that the alternative ______________. 23. If the null hypothesis is not rejected, we conclude that the null hypothesis ______________. 24. A Type II error occurs when the investigator ________________________________. 25. The probability of committing a Type I error is designated by the symbol_________, which is also called the ________________________________. 26. The following is a general statement of a decision rule: If, when the null hypothesis is true, the probability of obtaining a value of the test statistic as _________as or more _________ than that actually obtained is less than or equal to , the null hypothesis is _________. Otherwise, the null hypothesis is _________ . 27. The statement 0 is an inappropriate statement for the _________ hypothesis. 28. Given H0: = 0, then Ha: _________. 29. Given H0: 0, then Ha: _________. 30. A market analyst believes that more than 30% of the adults in a certain area regularly read a certain magazine. The analyst wishes to conduct a hypothesis test to see whether this belief will be supported. The appropriate statistical hypotheses are: ___________________________________. 31. What is a p-value and how it is different from