In a national survey, consumers were asked the question, In general, how would you rate the level of service that businesses in Australia provide? The distribution of responses to this question was as follows:
Very good 47%
A store manager wants to determine whether the results of this consumer survey apply to customers of supermarkets in Perth. 207 randomly selected consumers were asked how they would rate the level of service at the supermarket from which they had just exited. The observed responses are given below. Determine at the 10% level of significance whether the observed frequencies of responses from this survey are expected on the basis of the national survey.