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- 3. There is a teacher shortage across the nation. A random sample of teachers for different school levels were taken about job satisfaction and the results were recorded in the table below. High School Middle School Elementary Satisfied 35 30 62 Not satisfied 65 48 57 Is there sufficient evidence to say that school level taught and job satisfaction are associated????he numbers of state parks found in selected states in three different regions of the country are listed below. South West New England 51 28 94 64 44 72 35 24 14 24 31 52 47 40 a. (15 pts) At a-0.05 can it be concluded that the average number of state parks differs by region? b. If there is a significant difference among the means, test each pair of means.
- Your teacher claims to produce random numbers from 1 to 5 (inclusive) on her calculator, but you’ve been keeping track. In the past 80 rolls, the number “five” has come up only 8 times. You suspect that the calculator is producing fewer fives than it should. Let p = actual long-run proportion of five’s produced by the calculator. The hypotheses for testing the teacher’s claim are:In a simple random sample size of 89, there were 40 individuals in the category of interest. It is desired to test —- H0:P=0.46 VS H1:PCalculate the degrees of freedom for a one-sample t test with 2,822 U.S. adults between the ages of 15 and 64 in the sample.
- A random sample of 100 women is selected and their average salary is $65,123. What conclusion can you make?A statistics student claims that fewer than 10% of all females at CUNE have ever ridden a motorcycle. He asks 15 females in his statistics class and finds that only one has ever ridden a motorcycle. Can he use this data to test this claim? Why or why not? A. No, np 0 less than 5 B. No, the data come in matched pairs. C. Yes, we are comparing 2 proportions. D. Yes, the sample is randomTo collect data about the amount of time students spend studying for exams, which of the following methods should a teacher use to lead to a sample that is the most representative of the students in the school? Survey all the students who are in their final year of high school. Survey all students who achieved over 85% on their report card last semester. Survey all the students who play football. Survey all the students in the classes that he or she teaches. Survey 20 randomly selected students from each grade.
- A researcher estimates that the average height of the buildings of 30 or more stories in a large city is at least 700 feet. A random sample of 10 buildings is selected, and the heights in feet are shown. At a = 0.025, is there enough evidence to reject the claim? 485 520 511 535 841 635 725 616 615 5821. Two coins are tossed. Let H be the number of tails that occur. Determine the values of the random variable H. 2. A meeting of envoys was attended by 4 Koreans and 2 Filipinos. If three envoys were selected at random one after the other, determine the values of the random variable K representing the number of Koreans.I need answer for letter d. The last part. Thank you!