QUESTION 1COVID-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-19pandemic on the monthly spending on health supplement. A random sample of 11 respondentsparticipated in the survey and the result is shown below:Table 1Before PandemicRespondent1234891011Age2435272345567238294248(RM)23121380154524100807550During pandemic(RM)35402315204530100858050Answer 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-19pandemic.c) At (= 0.05, can you support the claim that the mean monthly spending on health supplement ishigher during as compared to before COVID-19 pandemic? Assume the population variances areequal.d) Calculate the Pearson correlation coefficient between age and monthly spending during COVID-19pandemic and describe the relationship.e) Based on the answer in (c) and (d), write a brief conclusion on the monthly spending on healthsupplement.||

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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2. [modified from page 76 #3] Coughlin et al. examined the breast and cervical screening practices of Hispanic and non-Hispanic women in counties that approximate the U.S. southern border region. The study used data from the Behavioral Risk Factor Surveillance System surveys of adults age 18 years or older conducted in 1999 and 2000. The table below reports the number of observations of Hispanic and non-Hispanic women who had received a mammogram in the past 2 years cross-classified with marital status. Marital Status Currently Married Divorced or Separated Widowed Never Married or Living As an Unmarried Couple Total Hispanic 319 130 88 41 578 Non-Hispanic 738 329 402 95 1564 Total 1057 459 490 136 2142 a) We select at random a subject who had a mammogram. What is the probability that she is widowed? b) We select at random a subject who had a mammogram and learn that she is Hispanic. With that information, what is the probability that she is married? e) Def two vents in this space that…
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