QUESTION 2 What is the value of the x2 test statistic? (You may compute this value by setting up a tablo as shown in the textbook, by using a website such as https://goodcalculators.com/chi-square-calculator/, an Excel spreadsheet, or a graphing calculator.) Express its value to two or three decimal places (to the hundredths or thousandths place).

I am interpreting a histogram. what do I do if there are two of the highest frequency?

What type of data would you use for collecting data on lap swim time?

please solve for the range, median, and percentile of the two tables and answer the question above

The indicated IQ score, x, is

A survey is carried out at a university to estimate the percentage of undergraduates living at home during the current term. What is the population? the parameter?

What is the 85th percentile?

You may need to use the appropriate appendix table or technology to answer this question. In a study entitled How Undergraduate Students Use Credit Cards, it was reported that undergraduate students have a mean credit card balance of $3,173. This figure was an all-time high and had increased 44% over the previous five years. Assume that a current study is being conducted to determine if it can be concluded that the mean credit card balance for undergraduate students has continued to increase compared to the original report. Based on previous studies, use a population standard deviation  ? = $1,000. (a) State the null and alternative hypotheses. H0: ? < 3,173 Ha: ? ≥ 3,173 H0: ? = 3,173 Ha: ? ≠ 3,173      H0: ? > 3,173 Ha: ? ≤ 3,173 H0: ? ≥ 3,173 Ha: ? < 3,173 H0: ? ≤ 3,173 Ha: ? > 3,173 (b) What is the test statistic for a sample of 170 undergraduate students with a sample mean credit card balance of $3,305? (Round your answer to two decimal places.)   What is…

The exercise presents numerical information. Describe the population whose properties are analyzed by the data. There were 531 crimes in a certain per 100,000 residents.

The National Assessment of Educational Progress (NAEP) includes a mathematics test for eighth-grade students. Scores on the test range from 0 to 500. Demonstrating the ability to use the mean to solve a problem is an example of the skills and knowledge associated with performance at the Basic level. An example of the knowledge and skills associated with the Proficient level is being able to read and interpret a stem-and-leaf plot. In 2019, 147,400 eighth-graders were in the NAEP sample for the mathematics test. The mean mathematics score was x = 282. We want to estimate the mean score u in the population of all eighth-graders. Consider the NAEP sample as an 40. SRS from a Normal population with standard deviation o = O Macmillan Learning Information about the NAEP test can be found online at https://www.nationsreportcard.gov. If we take many samples, the sample mean varies from sample to sample according to a Normal distribution with mean equal to the unknown mean score u in the…