Discussion:
We have to make a decision about the given claim. For example, if the claim is that a coin favors heads and sample results consists of 11 heads in 20 flips, conclude that there is not sufficient enough evidence to support the claim that the coin favors heads.
Q1) Claim: The proportion of households with telephones is greater than the porportion of 0.35 found in the year 1920. A recent simple random sample of 2480 households results in a prportion of 0.955 households with tele[phones
Q2) Claim: Movie patrons have IQ scores with a standard deviation that is less than the standard deviation of 15 for the general population. A simple random sample of 40 movie patrons results in IQ scores with a standard deviation of 14.8