7.Based on the data from the table below from a case control study, please answer the following questions. Table 1. The effect of non-differential misclassification with two exposure categories. A 50% misclassification from exposed to unexposed categories is assumed. True distribution Disease No disease OR (95% CI) Unexposed Exposed 500 500 200 100 Observed distribution with misclassification Reference 2.0 (1.5-2.6) Disease No disease OR (95% CI) Unexposed Exposed 600 100 550 50 Reference 1.8 (1.3-2.7) a. What type of misclassification is evident for the exposure measurement based on the data above and why? b. Please interpret the point estimate from the observed data with misclassification. How does this misclassification of exposure impact the study results?