1. A large distributor of gasoline claims that 60% of all cars stopping at their service stations choose regular unleaded gas and that premium and supreme are each selected 20% of the time. To investigate this claim, researchers collected data from a random sample of drivers who put gas in their vehicles at the distributor's service stations in a large city. The results were as follows: Gasoline Selected Regular Premium Supreme 261 51 88 Carry out a test of the distributor's claim at the 5% significance level. Expected counts Regular Premium Supreme

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1. A large distributor of gasoline claims that 60% of all cars stopping at their service stations choose
regular unleaded gas and that premium and supreme are each selected 20% of the time. To
investigate this claim, researchers collected data from a random sample of drivers who put gas in
their vehicles at the distributor's service stations in a large city. The results were as follows:
Gasoline Selected
Regular
Premium
Supreme
261
51
88
Carry out a test of the distributor's claim at the 5% significance level.
Expected counts
Regular
Premium
Supreme
Transcribed Image Text:1. A large distributor of gasoline claims that 60% of all cars stopping at their service stations choose regular unleaded gas and that premium and supreme are each selected 20% of the time. To investigate this claim, researchers collected data from a random sample of drivers who put gas in their vehicles at the distributor's service stations in a large city. The results were as follows: Gasoline Selected Regular Premium Supreme 261 51 88 Carry out a test of the distributor's claim at the 5% significance level. Expected counts Regular Premium Supreme
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