Evidence to reject the researcher claim

Reference no: EM13111979

A researcher claims that the average age of people who buy lottery tickets is 70. A sample of 30 is selected and their ages are recorded as shown below. The standard deviation is 16. At alpha = 0.05 is there enough evidence to reject the researcher's claim?

49 63 90 52 22 80 72 56 82 56

24 46 70 74 70 61 65 71 39 74

79 76 71 49 62 68 71 67 69 45

Reference no: EM13111979

Questions Cloud

Limitations of nonparametrics tests : Can you tell me what are the advantages and limitations of applying nonparametric tests in solving business problems?

What are the ethical implications of jenner method : In England in the 1700s, Edward Jenner injected a child with a smallpox vaccine that had not yet been tested. After some time had passed, he injected the same child with a living smallpox virus. How do you think Jenner's experimental method differ..

Null and research hypotheses and errors : You are Supervisor or Research for Doggie Heaven Biscuit Company. Your scientists have developed a new dog biscuit for the treatment of doggie breath.

Determine that none of the employees are absent : Determine the probability of randomly selecting 10 production employees on hot summer day and determining that none of them are absent?

Evidence to reject the researcher claim : A researcher claims that the average age of people who buy lottery tickets is 70. A sample of 30 is selected and their ages are recorded as shown below. The standard deviation is 16. At alpha = 0.05 is there enough evidence to reject the researche..

Steps involved in hypothesis testing using : List the steps involved in hypothesis testing using: a) the traditional/classical method; b) the probability-value method. Provide an example of each.

Find expected number of times person returns : Person repeatedly and independent flips the fair coin to decide whether to take the step to left or to right from a point X. Find out expected number of times person returns to X.

Find probability that disc doesn-t touch line between planks : Find out the probability that disc doesn't touch line between two planks. Find out also expected distance from center of the disc to closest line between two planks.

Determine the codon for each mutant : Mutational changes were induced in a single codon in the gene of T4 phage. The following amino acid substitutions were observed. By following the base changes in the codons, determine the codon for each mutant.

User Account

All Pages