Answer all please

alpha represents 0 the probability the condence interval includes the unknown parameter Q the amount of sampling error 0 the probability the condence interval does not include the unknown parameter 0 one half the probability of error is of 50 If our P-value is really small, that indicates which of the following? (Select all that apply) Q The probability of our observed results occurring given the null hypothesis is very small, thus the null hypothesis is probably not true. 0 The null hypothesis is true. The probability of our observed results occurring given the null hypothesis is very small, thus the null hypothesis is probably true. Q We should fail to reject the null hypothesis. Q We should reject the null hypothesis. O The null hypothesis is false. 19 of 50 Which of the following is the first step in hypothesis testing? Q It does not matter where you begin when you test hypotheses. 0 Developing a null and alternative hypothesis. Q Drawing a sample from the population. Q Setting the cutoff value for rejecting the null hypothesis. 20 of 50 It is claimed that 66% of Boston residents have considered moving to a warmer climate. A group of city council members is hoping that the actual gure is lower than that, and wish to conduct a hypothesis test at the cz=.05 level of signicance to determine if they are right. Which would be correct hypotheses for this test? 0 Ho: p 2 0.66, Ha: p 0.66 0 Ho: p