A random sample of 41 adult coyotes in a region of northern Minnesota showed the average age to be x = 2.09 years, with sample standard deviation s = 0.88 years. However, it is thought that the overall population mean age of coyotes is μ = 1.75. Do the sample data indicate that coyotes in this region of northern Minnesota tend to live longer than the average of 1.75 years? Use ? = 0.01.   (a) What is the level of significance? What is the value of the sample test statistic? (Round your answer to three decimal places.)

The annual per capita consumption of oranges (in pounds) in the United States  can be approximated by a normal distribution. The mean annual per capita  of oranges is 19.2 with a standard deviation of 4 pounds.  what annual per capita consumption of oranges represents the 5th percentile?

In​ 2007, the mean rate of violent crime​ (per 100,000​ people) for 10 regions in the northeast of a certain country was 350. The standard deviation was 127. Assume that the distribution of violent crime rates is unimodal and symmetric. Using the Empirical​ Rule, between what two values would you expect to find about​ 95% of the​ rates?   Using the Empirical​ Rule, between what two values would you expect to find about​ 68% of the​ rates?

Suppose the exam average in a class is 55% with a standard deviation of 4. What proportion of students scored above 57%? Round to two places.

A man measures his heart rate before using a treadmill and then after walking ona treadmill for 10 minutes on 7 separate days. His mean heart rate at baseline and10 minutes after treadmill walking is 85 and 93 beats per minute (bpm), respectively. The mean change from baseline to 10 minutes is 8 bpm with a standarddeviation of 6 bpm.(a)  What test can we use to compare pre- and post-treadmill heart rate?(b)  Implement the test in 2a, and report a two-tailedp-value.(c)  Provide a 90% confidence interval (CI) for the mean change in heart rate afterusing the treadmill for 10 minutes.(d)  What is your overall conclusion concerning the data?   this is a review question of ch8 bernard rosner. the solution is not provided at bartleby for this review question

The mean score on a driving exam for a group of​ driver's education students is 6868 ​points, with a standard deviation of 55 points. Apply​ Chebychev's Theorem to the data using kequals=22. Interpret the results

Suppose that annual precipitation is normally distributed, with mean 50 inches, and standard deviation 12 inches. Find the 65th percentile of the precipitation distribution

Suppose that the antenna lengths of woodlice are approximately normally distributed with a mean of 0.22 inches and a standard deviation of 0.05 inches. What proportion of woodlice have antenna lengths that are more than 0.18 inches? Round your answer to at least four decimal places.

Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the z-score of a man 61.7 inches tall. (to 2 decimal places)

The sample mean of depression scores of 16 fifth graders was 4.4 with standard deviation of 8. If the population mean of this depression score is 6, what is the calculated t score for this sample?