Road Transport Department claims that the mean speed of cars on a highway is 114 km/h. An insurance company took a random sample of 21 cars driven on a highway and found that the test statistic is -2.2913. Can we accept the Road Transport Department's claim at 5% level of significance? (Hint: a unknown) Choose... True (a) The correct null hypothesis to illustrate the above situation is Ho: u-114 1.9600 and-1.9600 3.1534 and-3.1534 2.5758 and -2.5758 (b) Choose the correct critical value. Do not reject the null hypothesis Yes, we can accept the claim at 5% significance level. Reject the null hypothesis No, the claim is not supported at 5% significance level. (c) Determine the decision to reject or not to reject the null hypothesis. 2.0860 and -2.0860 False (d) Based on your decision in (c), can we accept the claim? Choose..

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