The process that produces micho bars (a type of milk cholate candy) is intended to produce bars with a mean weight of 56 gm. The process standard deviation is known to be 0. 77 gm. A random sample of 49 candy bars yields a mean weight of 55. 82 gm

The process that produces Sonora Bars (a type of candy) is intended to produce bars with a mean wight of 56 gm. The process population standard deviation is known to be 0.77 gm A random sample of 49 candy bars yields a mean wight of 55.82 gm.

Explanation:

Which are the hypotheses to test whether the mean is smaller than it is supposed to be? a. H_0: mu lessthanorequalto 56, H_A: > 56 b. H_0: mu greaterthanorequalto 56, H_A: < 56 c. H_0: mu = 56, H_A: mu notequalto 56 d. H_0:mu <56, H_A:mu greaterthanorequalto 56 In a left (one - tailed) test, a statistician got a z test statistic of -1.720. What is the p - value? a. 0.4292 c. 0.0709 b. 0.0427 d. 0.0301 Alpha (alpha) is a. equal to the probability of committing a Type 1 error. b. called the test's significance level. c. the probability of rejecting H_0 when it is really true. d. All the above are true. Given the following information, if the hypothesis test is conducted at the 1% level of significance, the null hypothesis should n = 16 x = 73 s = 8.246 H_0:mu greaterthanorequalto 80 H_A:mu < 80 a. not be rejected b. be rejected c Not enough information is given to answer this question. d None of these alternatives is correct

answer: the mildest forms of push polling are designed merely to remind voters of a particular issue. for instance, a push poll might ask respondents to rank candidates based on their support of an issue in order to get voters thinking about that issue. many push polls are negative attacks on other candidates.