3. A sample of 17 earthquakes occurring in the United States had readings on the Richter scale that are listed below: Earthquake Sizes 3.0 2.1 1.3 5.1 3.4 3.8 1.4 1.5 2.0 4.6 1.2 1.8 2.7 3.5 The five-number summary for the data set is ( [Select] [Select] V [Select] [Select] V [Select] The interquartile range is [Select] The lower fence is [Select] [upperf]. A good way to display this data would be a 2.1 3.1 2.4 and the upper fence is [Select]
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Number 3
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3. A sample of 17 earthquakes occurring in the United States had
readings on the Richter scale that are listed below:
Earthquake Sizes
3.0
2.1
1.3
5.1
3.4
3.8
1.5
2.0
3.1
4.6
1.2
1.8
2.7
3.5
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[Select]
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[Select]
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The interquartile range is [Select ]
The lower fence is [Select]
M
✓ and the upper fence is
[upperf].
A good way to display this data would be a
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1.4
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- a. An investigator decided to conduct a research to describe the average number of females in each family. Considering the case of families in the town. Describe what may contribute to the difference between the value of the sample statistics and its corresponding population parameter.b. How would the investigator control the above-mentioned phenomenon? PLEASE ANSWER THE b part only if possibleA plastic manufacturing company intends to create a control chart for the upcoming period by conducting inspections on the production process this month.The company performs 25 observations, taking 50 samples for each observation. The data on the number of defects can be seen in the table. Based on the data, with a constant sample size, determine and create a Control Chart appropriate for this situation. Then, explain whether any revisions are needed for the upcoming period based on the control chart.The Wall Street Journal subscriber survey (October 13, 2003) asked 46 questions about subscriber characteristics and interests. State whether each of the following questions provided qualitative, discrete or continuous variable and indicate the measurement scale appropriate for each. •What is your age? •Are you male or female? •When did you first start reading the WSJ? High school, college, early career, midcareer, late career, or retirement? •How long have you been in your present job or position? •What type of vehicle are you considering for your next purchase? response categories include sedan, sports car, SUV, minivan, and so on.
- A forensic psychologist is interested in assessing the prevalence of major depressive disorders among a sample of prison inmates. A random sample of inmates was selected and tested on the MDI (Major Depressive Inventory), a self-report instrument designed to measure levels of depression. Their scores were: 8, 10, 4, 11, 7, 10, 13, 4, 8, 7, 9, 3, 15, 10, 10, 10, & 13. a.) Use descriptive statistics including sample size, skewness, kurtosis, mean, median, mode, range, and standard deviation to describe this sample. Write your results in a paragraph similar to the Results section of a manuscript. b.) If the MDI has a µ = 10, is the depression of prison inmates significantly different than that of the general population? Test with an α = 0.05. c.) What type of error is possible based on the outcome? I need help learning these questions.What are the appropriate statistical tool when dealing with a likert type of data? Kindly expound the answer and provide exapmples.Lecture(10.3a): Identify the test statistic used for the ANOVA procedure and how it is calculated. (a) The test statistic is F and is calculated by finding the difference between groups.
- Identify the statistical procedures that are appropriate for the data. When possible, identify descriptive statistics, inferential statistics, and a measure of effect size.To examine the relationship between texting and driving skill, a researcher uses orange cones to set up a driving circuit in the high school parking lot. A group of students is then tested on the circuit, once while receiving and sending text messages and once without texting. For each student, the researcher records the number of orange cones hit while driving each circuit.A study is designed to test whether there is a difference in mean daily calcium intake in adults with normal bone density, adults with osteopenia (a low bone density which may lead to osteoporosis) and adults with osteoporosis. Adults 60 years of age with normal bone density, osteopenia and osteoporosis are selected at random from hospital records and invited to participate in the study. Each participant's daily calcium intake is measured based on reported food intake and supplements. The data are shown below. Is there a statistically significant difference in mean calcium intake in patients with normal bone density as compared to patients with osteopenia and osteoporosis?how to Use a suitable statistical method to determine whether there is any significant difference in the Na, K, Ca and Mg content of the three salt licks including comparisons between groups. Show your data analysis and describe the conclusion derived. (by using ANOVA, EXCEL, )
- Cadmium, a heavy metal, is toxic to animals. Mushrooms, however, are able to absorb and accumulate cadmium at high concentrations. A government set a safety limit for cadmium in dry vegetables at 0.5 parts per million (ppm). The cadmium levels in a random sample of one species of edible mushroom are in the accompanying data set. At the 10% significance level, do the data provide sufficient evidence to conclude that the mean cadmium level in this species of mushroom is greater than the government's recommended limit of 0.5ppm? Assume that the population standard deviation of cadmium levels in this species of mushroom is 0.45 ppm. Preliminary data analyses indicate that applying the z-test is reasonable. (Note: The sum of the data is 6.57 ppm.) 0.32 0.44 0.17 0.23 0.79 1.21 0.84 0.24 0.46 0.41 0.92 0.54 State the hypotheses for the one-mean z-test.H0: μ (≠, >, <, =) ________ppmHa: μ (≠, >, <, =) _________ppmCompute the value of the test…Cadmium, a heavy metal, is toxic to animals. Mushrooms, however, are able to absorb and accumulate cadmium at high concentrations. A government set a safety limit for cadmium in dry vegetables at 0.5 parts per million (ppm). The cadmium levels in a random sample of one species of edible mushroom are in the accompanying data set. At the 10% significance level, do the data provide sufficient evidence to conclude that the mean cadmium level in this species of mushroom is greater than the government's recommended limit of 0.5 ppm? Assume that the population standard deviation of cadmium levels in this species of mushroom is 0.41 ppm. Preliminary data analyses indicate that applying the z-test is reasonable. (Note: The sum of the data is 6.71 ppm.) data below 0.66, 0.21, 0.26, 0.86, 0.94, 1.17, 0.38, 0.31, 0.85,0.37,0.46,0.24 State the hypotheses for the one-mean z-test. H0:μ less than< greater than> not equals≠ equals= Ha:μ equals= greater than> less…Throughout the world, women are targets of harassment, discrimination, violence, and evenmurder due to perceptions of their clothing choices. Some women are targeted because theydress to religious and some women are targeted because they do not dress religious enough. Aresearcher was interested in determining if countries that had more restrictions on how womendress (i.e., how many laws regulate women’s clothing choices?) also had more women reportingsocial hostility from others (e.g., discrimination, abuse, violence). What statistical test should beused to determine if there is a relationship between number of women’s clothing regulations andthe number of reports of social hostility? Assume parametric assumptions are met. A. Is this a relationship test or a difference test? Explain your rationale. B. What would be the appropriate statistical test? Explain your rationale.