An automobile manufacturer claims that its jeep has a 37.8 miles/gallon (mpg) rating. an independent testing firm has been contracted to test the mpg for this jeep since it is believed that the jeep has an incorrect manufacturer's mpg rating. after testing 240 jeeps, they found a mean mpg of 37.9. assume the variance is known to be 4.41. a level of significance of 0.02 will be used. find the value of the test statistic. round your answer to 2 decimal places.

enter the value of the test statistic.

The population of a small rural town in the year 2006 was 2,459. the population can be modeled by the function below, where f(x residents and t is the number of years elapsed since 2006. f(t) = 2,459(0.92)

Can some one explain this i got sent this. is this a threat i’m scared

Arandomized controlled trial is designed to evaluate the effect of metoprolol in patients with heart failure. while preparing for statistical analysis, the researcher reviews some common types of statistical errors. which of the following statements is true regarding a type i error in a clinical study? a. the study is not significantly powered to detect a true difference between study groups. bthe null hypothesis is true but is rejected in error. c. the null hypothesis is false but is accepted in error. d. type i error is also known as beta and is usually 0.1 or 0.2. e. type i error depends on the study's confidence interval.