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1. In 2019, the proportion of Whatcom County households with broadband internet access was 87.8%. Suppose a new study of 450 randomly selected Whatcom County
1. In 2019, the proportion of Whatcom County households with broadband internet access was 87.8%. Suppose a new study of 450 randomly selected Whatcom County households found that 401 had broadband internet access. Test, using a 5% level of significance, the claim that the population proportion of Whatcom County households with broadband internet access has increased. a. (2 points) State the null and alternative hypotheses level of sig Ho: P - . 878 X =.05 HI: P 7 -. 878 b. (2 points) What calculator test will you use? List the requirements that must be met to use this test, and indicate whether the conditions are met in this problem. SRS = is a random sample I X is normally distributed or A> 30 we will used a test because we're testing a population proportion. 450 (. 878) = 395 c. (2 points) Run the calculator test and obtain the P-value. 7 = X - d. (2 points) Based on your P-value, will you reject or fail to reject the null hypothesis? e. (2 points) Interpret your conclusion from part d in the context of this
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