1.In a sample of 370 adults, 237 had children. Construct a 95% confidence interval for the true population proportion of adults with children.
Give your answers as decimals, to three places _____
2.You measure 23 dogs' weights, and find they have a mean weight of 59 ounces. Assume the population standard deviation is 2.3 ounces. Based on this, construct a 99% confidence interval for the true population mean dog weight.
Give your answers as decimals, to two places ______±______ Ounces
3.The p-value for a hypothesis test turns out to be 0.02481. At a 3% level of significance, what is the proper decision? A) Reject Ho B) Fail to reject Ho
4.If your null and alternative hypothesis are:
Ho: μ=15
H1: μ>15
Then the test is A) right tailed B) two tailed C) left tailed