. Question 28 1 pt 9 1 0 Details From previous studies, it is concluded that 70% of car crashes occur within two miles of the motorist's home. A researcher claims that the proportion is smaller than 70% and decides to survey 700 working adults. Test the researcher's claim at the a = 0.025 significance level. Preliminary: a. Is it safe to assume that n 0.7 Ha : p 0.7 O Ho: M = 0.7 Ha: H 0.7 Ha : p # 0.7 b. The test is Select an answer v c. Based on the sample of 700 people, 63% car crashes occur within two miles of the motorist's home. What is the test statistic? Round your answer to two decimal places. ? v d. What is the p-value? Round your answer to four decimal places. e. Make a decision. O Do not reject the null hypothesis. O Reject the null hypothesis. f. Make a conclusion. O There is sufficient evidence that the proportion of people who car crashes occur within two miles of the motorist's home is smaller than 70% at the a = 0.025 significance level. There is not sufficient evidence that the proportion of people who car crashes occur within two miles of the motorist's home is smaller than 70% at the a = 0.025 significance level