### Question 26The data below shows 6 daily pH level measurements of a fish tank.7.11, 7.15, 7.32, 7.11, 7.65, 7.4Using this sample data to estimate the mean daily pH level of the fish tank, \(\mu\), with a 82% confidence interval, what's the value of \(t_{e}\) required for this estimate?- O -1.007- O 1.517- O -1.517- O 1.558- O -1.558**Note:** Round your answer to 3 decimal places for \(t_{e}\).[Submit Question]

Answered: The data below shows 6 daily pH level…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section: Chapter Questions

Problem 25SGR

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indicator for gender (=1 if male, =0 if female). Your data set has 200 observations. donation = 1.57 + 0.12age + 0.08age? – 0.43 gender + 0.07(gender * age), R? = 0.33 (0.15)* (0.67) (0.11) (0.01) (0.06) donation = 1.59 (0.68) 0.46 gender, R² = 0.30 (0.17) 1. Assuming homoscedastic errors, test the hypothesis that age affects charitable donations at the 5% level. 2. Interpret the coefficient on gender interacted with age. 3. How would you test that the difference in giving between men and women is independent of age? If you can run the test, run it. If you cannot, explain what you need.
You are studying whether CSUB's graduate students are more likely to be parents or more likely to not be parents. There is no specific estimation of these percentages available, so you figure they are equally likely. Using this table's data, what is the chi square-obtained value for your sample? Parenting status among CSUB graduate students Are parents f,=188 Are not parents f.=162 f=175 f=175 k=2 N=350
Question 8 > Calculate the test-statistic, t with the following information. = 0.73 0.91 ni 60, ã1 = 2.46, s1 || || n2 35, х2 2.48, s2 Rounded to 2 decimal places.
1 of 15 > According to the World Health Organization (WHO), Body Mass Index (BMI) is a statistic that indicates the ratio of a person's weight to their body volume. The Center for Disease Control (CDC) uses the table to classify children from ages 2 to 20. Because BMI values change as children grow, the CDC uses percentiles rather than fixed values for BMI. Percentiles provide a basis of comparison for BMI over time. Weight status Percentile range Underweight Less than the 5th percentile Healthy weight 5th percentile to less than the 85th percentile Overweight Obese 85th to less than the 95th percentile Equal to or greater than the 95th percentile Based on data from WHO, a representative sample of 11-year-old females could consist of the following 15 values. 15.8, 16.1, 13.7, 15.3, 19.2, 14.7, 18.1, 16.8, 18.6, 19.9, 16.5, 17.7, 17.2, 27.0, 21.4 85th percentile: DELL 23 & 4 6 8. 9. e y i k + II .. ..
The mean score on stat finals for all Hartnell students is 78/100. Is this a parameter or a statistic?
Peak expiratory flow (PEF) is a measure of a patient’s ability to expel air from the lungs. Patients with asthma or other respiratory conditions often have restricted PEF. The mean PEF for children free of asthma is 306. An investigator conducts a study to investigate whether there is a difference in mean PEF in children with chronic bronchitis as compared to those without asthma or other respiratory conditions often have restricted PEF. Data on PEF are collected and summarized below. Based on the data, is there statistical evidence of a lower mean PEF in children with chronic bronchitis as compared to those without? Run the appropriate test at  = 0.05. Group Number of Children Mean PEF Std PEF Chronic Bronchitis 25 281 68 No Bronchitis 25 319 74
Peak expiratory flow (PEF) is a measure of a patient’s ability to expel air from the lungs. Patients with asthma or other respiratory conditions often have restricted PEF. The mean PEF for children free of asthma is 306. An investigator conducts a study to investigate whether there is a difference in mean PEF in children with chronic bronchitis as compared to those without asthma or other respiratory conditions often have restricted PEF. Data on PEF are collected and summarized below. Based on the data, is there statistical evidence of a lower mean PEF in children with chronic bronchitis as compared to those without? Run the appropriate test at alpha = 0.05. Group Number of Children Mean PEF Std Dev PEF Chronic Bronchitis 25 281 68 No Chronic Bronchitis 25 319 74

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