Find the p-value: the test statistic for a right-tailed test is z = 1.02. Draw the graph.

Closing price of two stocks are recorded for 50 days. The sample standard deviation of stock X is 7.240 and the sample standard deviation of stock Y is 9.833. The sample covariance is -$22.075. What is the correlation coefficient?

Stoaches are fictional creatures that feed on funistrada. According to Wikipedia, adult stoach weights are normally distributed, with a mean of 393 g and a standard deviation of 54 g. You weigh a random sample of 64 stoaches, and find a sample mean weight of 384.4 g. Assume Wikipedia is correct about the standard deviation. What is the ?p-value for a two-sided hypothesis test that Wikipedia is also right about the mean weight? (Give your answer to 4 decimal places.

Given the following graph, where the mean is marked, which value best represents the z-score shown? 0 ↑ Z

Which of the following is true of z scores that fall below the mean? Group of answer choices They are negative. They are equal to the mode. They are positive. They are in the upper half of the distribution.

search A study was conducted that resulted in the following relative frequency histogram. Determine whether or not the histogram indicates that a normal distribution could be used as a model for the variable. Yooo Choose the correct answer below. OA. The histogram is not bell-shaped, so a normal distribution could be used as a model for the variable. OB. The histogram is not bell-shaped, so a normal distribution could not be used as a model for the variable. OC. The histogram is bell-shaped, so a normal distribution could not be used as a model for the variable. OD. The histogram is bell-shaped, so a normal distribution could be used as a model for the variable. ly 144 is 4+ 2000 3000 4000 Q Q G 5000 prt sc delete

K A commuter tallied the time to work for 200 days and found that it resembled a normal curve. The mean time was 50 minutes, and the standard deviation was 2 minutes. For the 200-work-day experiment, find the percent of time commuting to work less than 44 minutes. 44 Minutes to Commute to Office 1 46 48 68%- 95% 99/7% 50

Q2: Which of the following is the correct mean for the given data: -2, -1, 0, 1,2 (A) 2 (B) 0 (C) 2.5 (D) None of the above

Select all true statements below (Multiple or none can be true). With a large, representative sample, the histogram of the sample data will follow the normal curve closely. If two lists of numbers have exactly the same average of 50 and SD of 10, then the percentage of entries between 40 and 60 must be exactly the same for both lists. Half of a list of numbers is always below its average. The median and average of a list of numbers are not necessarily close together.

ryan has collected data on individual income (reported in dollars) and has not found any outliers. ryan wants to calculate the average income in his data. which measure of central tendency should he use? -mean -variance -mode -median