to determine the number of umbrellas the aver...
to determine the number of umbrellas the average household in the united states owns, a survey of 100 randomly selected households in arizona is conducted. of the households, 24 said that they own 3 or more umbrellas. the researcher concluded that 24% of the households in the united states own 3 or more umbrellas. is the this a valid conclusion? justify your answer. not valid. the sample is unbiased. not valid. the sample is biased. valid. the sample is unbiased. valid. the sample is biased.
Answer
# Answer:
B. Not valid. The sample is biased.
# Explanation:
## Step1: Identify the sample
The sample is 100 randomly - selected households in Arizona.
## Step2: Consider the population
The population is all households in the United States.
## Step3: Analyze the sampling
Arizona has a dry climate compared to many other states. Households in Arizona may have different umbrella - owning patterns than households in other parts of the US. So, the sample from Arizona is not representative of all US households, making it a biased sample. Thus, the conclusion is not valid.