A appropriate statistical tool to: (i) estimate the mean calories of beers with confidence; and (ii) test that the mean percentage of alcohol content of beers is less than at significance.

Question: A four digit number, in the range of 0000 to 9999 inclusive, is formed. Find the probability that a. The number begins or ends with zero b. The number contains exactly two non-zero digits Statistics homework help

An experiment tests whether or not dogs can detect cancer by sniffing 7 urine vials, one of which was from a cancer patient. When the hypothesis is tested that the dogs randomly guess, H0: p = 1/7, against the hypothesis that the dogs do not randomly guess, Ha: p not equal 1/7, a P-value of 0.05 is obtained. Statistics homework help

Last question for me. I get null and alternate hypotheses, but when it throws p-value into the mix I get a little lost. Any help or direction would be appreciated.

Mrs. Ricco has seven brown-eyed and one blue-eyed brunettes in her fifth grade class. She also has nine blue-eyed and three brown-eyed blondes. A child is selected at random,what is the probability that the child is a brown-eyed brunette? Statistics homework help