Suppose we are interested in the proportion of statistics students at this university who are Commerce students.  We do a survey of 10 randomly selected students and ask them to indicate if they are Commerce students or not by ticking a box marked 'Commerce' or a box marked 'not Commerce' on the survey form.  When we get the responses, we find that 3 students have ticked the box marked 'Commerce' (7 have ticked the box marked 'not Commerce'). (3) Using the second sample, what is the sample proportion of statistics students who are Commerce students (type the proportion, correct to 2 decimal places, into the box)

Suppose we are interested in the proportion of statistics students at this university who are Commerce students.  We do a survey of 10 randomly selected students and ask them to indicate if they are Commerce students or not by ticking a box marked 'Commerce' or a box marked 'not Commerce' on the survey form.  When we get the responses, we find that 3 students have ticked the box marked 'Commerce' (7 have ticked the box marked 'not Commerce'). (2) Have the necessary conditions been been met to allow us to calculate a confidence interval for the proportion of statistics students who are Commerce students from this sample?

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Last year over 7000 students took an entrance exam at a certain state university. Kareem's score was at the 44th percentile. Lella's score was at the 93rd percentile. (a) Which of the following must be true about Kareem's and Leila's scores? Both Kareem and Leila scored higher than the median. O Both Kareem and Lella scored below than the median. O Leila scored higher than Kareem. O Kareem scored higher than Leila. (b) Which of the following must be true about Kareem's score? O About 44% of the students who took the exam scored lower than Kareem. O Kareem got about 44% of the questions correct. O Kareem's score was in the top half of all scores. O Kareem missed 56 questions. Explanation Check X 3 Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center

UCLA conducted a survey of more than 263,000 college freshmen from 385 colleges in fall 2005. The results of students' expected majors by gender were reported in The Chronicle of Higher Education (2/2/2006). Suppose a survey of 5,000 graduating females and 5,000 graduating males was done as a follow-up last year to determine what their actual majors were. The results for males are shown in the table below. The second column in the table does not add to 100% because of rounding.Conduct a goodness-of-fit test to determine if the actual college majors of graduating males fit the distribution of their expected majors. (Use a significance level of 0.05.) Major Men - Expected Major Men - Actual Major Art & Humanities 11.0% 600 Biological Sciences 6.7% 330 Business 22.7% 1,130 Education 5.8% 305 Engineering 15.6% 800 Physical Sciences 3.6% 175 Professional 9.3% 460 Social Sciences 7.6% 370 Technical 1.8% 90 Other 8.2% 400 Undecided 6.6% 340 Part (e) What…

Rabbani company is a company that sells Muslim clothing. In their products for sale, there are two types of veil production different. The production manager stated that both types have the same percentage of damage/defects. To test the statement taken sample of 300 items from the first product and it turns out that there are 38 items that disabled. Meanwhile, from the second product, 400 items were taken as samples There are 56 defective items. With ?= 1% can the sample obtained be used as evidence to justify the statement?

There are 3 parts to this question!! Answer each part in a separate blank! The average price per square foot for a home in a large county in a certain state is $225. The council of a country town wonders if the mean price of the homes in their town is less than the mean price of the homes in the county. The town council selected a random sample of 9 homes that have recently sold in their town. They found the price per square foot and want to perform a hypothesis test at the 0. 05 significance level. The data is listed below. 221.4 213.1 219.1 229.6 220.7 224.4 221.6 217.8 223.9 1. Calculate the test statistic and the P-value. 2. What is the decision at the given significance level? 3. What do you conclude?

Suppose that a researcher is studying the wingspans of wild condors. To study this the researcher randomly selects 7 condors that live near the California Coast and 7 condors that live near the Grand Canyon for a total of 14 condors. The researcher measures the wingspan of each of these birds in inches and gets the following data. (Note: You may assume that there are about 400 condors in the wild) 94, 100, 102, 110, 115, 118, 119, 122, 123, 126, 128, 135, 136, 140 (All values in inches) (a) What sampling technique was used to collect this data? (b) Use this data to construct a 99% confidence interval for the average wingspan for California condors. Make sure to confirm all necessary conditions and interpret your interval. (Hint: This should be a 1-sample mean confidence interval) (c) Could you conclude that 99% of California condors will have wingspans inside the interval you found in (b)? Why or why not?