Answer:
Population: All students in Mrs. Smith’s kindergarten class.
Sample: 7 children selected in Mrs Smith’s kindergarten class.
Explanation:
We know that the population is the set of all available individuals under study and the sample is the set of selected individuals under study.
For this scenario, ‘all students in the Mrs. Smith’s kindergarten class’ is the population under study. We cannot consider the population as all students who watch television, because study is limited to Mrs. Smith’s kindergarten class. Also, selected 7 children represent the sample for this study.
Identify the population being studied and the sample chosen. The number of hours a group of...
Identify the population being studied and the sample chosen. The heights of 5 out of the 32 corn plants at Mr. Lonardo's greenhouse. Answer 2 Points Tables Population: All corn plants in greenhouses. Sample: The 5 corn plants at Mr. Lonardo's greenhouse. Population: The 32 corn plants at Mr. Lonardo's greenhouse. Sample: The 5 corn plants at Mr. Lonardo's greenhouse. Population: All corn plants in greenhouses. Sample: The 32 corn plants at Mr. Lonardo's greenhouse.
A study showed that the average number of hours children in the US watch television each day is 4 hours with a standard deviation of 1.6 hours. If a group of 64 children is selected at random, what is the probability that the average time these children watch television more than 3.5 hours a day?
The following frequency distribution represents the number of hours studied per week by a sample of 50 students. Picture Refer to Exhibit 3-8. The standard deviation of the number of hours studied is: 1.89. 2.79. 3.50. 3.56. hours studied midpoint frequency 2.5 less than 5.5 4 5 5.5 less than 8.5 7 30 8.5 less than 11.5 10 25
For the following random sample: "For 100 randomly chosen college students, the number of hours each slept the previous night." state: 1) a possible population 2) whether the data is discrete , continuous or categorical 3) the sample space for one sample or observation
answer all its all one answer 2.1.42 In order to investigate how many hours a day students at their school tend to spend on course work outside of regularly scheduled class time, a statistics student takes a random sample of 150 students from their school by randomly choosing names from a list of all full-time students at their school that semester. The student finds that the average reported daily study hours among the 150 students is 2.23 hours. Identify the...
The data below are the scores of 10 randomly selected students from a statistics class and the number of hours they studied for the exam. Construct a interval for y, the score on the final exam, given x -7 hours,5.04x+6.11 and s -6.35 허허허허허워 허허허허 Scones, y O55.43 <y< 78.19 O 79.16 <y< 112.34 074.54 < y < 10830 77.21c y < 110.45 The data below are the scores of 10 randomly selected students from a statistics class and the...
3 Suppose that a population is being studied that has a known standard deviation of 110. Further suppose a sample of size 90 is taken, resulting in a sample mean of 550. Determine the Point Estimate and the Margin of Error for a 95% Confidence Interval for this sample. Round all calculations to two (2) decimal places. 6 Blank # 1 550 A/ Blank # 2 Question 2 (4 points) Saved Suppose that a population is being studied that has...
A study is being planned to estimate the mean number of semester hours taken by students at a college. The population standard deviation is assumed to be σ = 4.7 hours. How many students should be included in the sample to be 99% confident that the sample mean 3 is within one semester hour of the population mean gu for all students at this college?
Question 3 consists of all subjects that are being studied. O sample O variable population O group Question 4 What level of measurement classifies data into mutually exclusive categories in which no order or ranking can be imposed on the data? O ordinal O nominal O interval ratio
a-c please 3. In order to determine how many hours per week freshmen college students watch television, a random sample of 25 students was selected. It was determined that the students in the sample spent an average of 19.5 hours with a sample standard deviation of 3.9 hours watching TV per week. Please answer the following questions: (a) Provide a 95% confidence interval estimate for the average number of hours that all college freshmen spend watching TV per week. (b)...