QUESTION 1 COVID-19 virus has been categorized as a pandemic in March 2020 by the World Health Organization (WHO). A study was conducted through an online survey to describe the impact of the COVID-19 pandemic on the monthly spending on health supplement. A random sample of 11 respondents participated in the survey and the result is shown below: Table 1 Before Pandemic Respondent 1 2 3 4 6 7 8 9 10 11 Age 24 35 27 23 45 56 72 38 29 42 48 (RM) 12 13 8 0 15 45 24 100 80 75 50 During pandemic (RM) 35 40 23 15 20 45 30 100 85 80 50 Answer the following questions without using any output from any software. a) Calculate the mean monthly spending different before and during COVID-19 pandemic. b) Calculate the standard deviation monthly spending different before and during COVID-19 pandemic. c) At (-0.05, can you support the claim that the mean monthly spending on health supplement is higher during as compared to before COVID-19 pandemic? Assume the population variances are equal.
QUESTION 1 COVID-19 virus has been categorized as a pandemic in March 2020 by the World Health Organization (WHO). A study was conducted through an online survey to describe the impact of the COVID-19 pandemic on the monthly spending on health supplement. A random sample of 11 respondents participated in the survey and the result is shown below: Table 1 Before Pandemic Respondent 1 2 3 4 6 7 8 9 10 11 Age 24 35 27 23 45 56 72 38 29 42 48 (RM) 12 13 8 0 15 45 24 100 80 75 50 During pandemic (RM) 35 40 23 15 20 45 30 100 85 80 50 Answer the following questions without using any output from any software. a) Calculate the mean monthly spending different before and during COVID-19 pandemic. b) Calculate the standard deviation monthly spending different before and during COVID-19 pandemic. c) At (-0.05, can you support the claim that the mean monthly spending on health supplement is higher during as compared to before COVID-19 pandemic? Assume the population variances are equal.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.5: Interpreting Data
Problem 1C
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