Which of the following would describe a die that is rolled 300 times and gets an equal number of 2 and 4 as the most frequently occurring? Group of answer choices normal distribution bimodal positively skewed leptokurtic

Find the Z-scores that separate the middle 44% of the distribution from the area in the tails of the standard normal distribution. book 4 Player.aspx?cultureld=&theme=math&style=highered&disableStandbyIndicator=true&lassignmentHandles The Z-scores are (Use a comma to separate answers as needed. Round to two decimal places as needed.) 4 $ Click the icon to view a table of areas under the normal curve. R F F5 通道 % JUDE 5 6 T OL F6 G 1 19 F7 Y F8 H & 7 00 U J DAR F9 * 00 8 O DELL F10 K 9 Locale=true# F11 O ) L 2 F12 P PrtScr 73°F Sunny [ Insert Clear all 0 Delet Backs

To determine whether or not they have a certain disease, 104 people are to have their blood tested. However, rather than testing each individual separately, it has been decided first to group the people in groups of 13. The blood samples of the 13 people in each group will be pooled and analyzed together. If the test is negative, one test will suffice for the 13 people (we are assuming that the pooled test will be positive if and only if at least one person in the pool has the desease); whereas, if the test is positive each of the 13 people will also be individually tested and, in all, 14 tests will be made on this group. Assume the probability that a person has the desease is 0.06 for all people, independently of each other, and compute the expected number of tests necessary for the entire group of 104 people. answer: 1

List and describe at least three characteristics of the normal distribution.Find an example of something that you would expect to be normally distributed and share it. Explain why you think it it normally distributed.Find an example of something that you would not expect to be normally distributed and share it. Explain why you think it would not be normally distributed.Find a web-based resource that is helpful in understanding the Normal Distribution.

Transforming an entire distribution of scores into z-scores will not change the shape of the distribution. a. True b. False

Please do not give solution in image format thanku A production process manufactures electronic components with timing signals whose duration follows a normal distribution. A random sample of 7 components was​ taken, and the durations of their timing signals were measured. a. The probability is 0.10 that the sample variance is bigger than what percentage of the population​ variance? b. The probability is 0.05 that the sample variance is less than what percentage of the population​ variance?

A uniform distribution has endpoints 4 and 18. What is the 90th percentile, reporting to one decimal place?

A survey of 2255 randomly selected US adults found that 51% said they know all or most of their neighbors. Find 90% CI for the proportion of US adults they know most or all their neighbors. The sample size of 200 is large enough to use a normal distribution.

The average number of cavities that thirty-year-old Americans have had in their lifetimes is 7.  Do twenty-year-olds have a different number of cavities? The data show the results of a survey of 13 twenty-year-olds who were asked how many cavities they have had. Assume that the distribution of the population is normal. 9, 8, 8, 10, 10, 9, 9, 10, 6, 6, 9, 8, 8 What can be concluded at the α = 0.01 level of significance? The p-value = _______  (Please show your answer to 4 decimal places.) The p-value is _______    α Based on this, we should _________     the null hypothesis.