For numbers 3 to 7, refer to the gven situation: Ewin Believėš that with his current internet subscription, he can download a 750 mb movie in just 14 minutes. In order to test his own daim, he took a random sample of 10 downloading time obtained a mean of 14.75 minutes with standard deviation of 1.75 minutes. 3. What are the mull and alternate hypotheses? A Hai = 14 Ho: # 14 B. Hal + 14; H: = 14 C Haii < 14 Ho: # 14 D. Hal < 14 Hoi = 14 4 What type of testis appropriate for the situation? A 2-test B. t-test C x-test D. F-test 5. What value of the test statistic? A 1.645 B. -1.645 C 1355 D. -1.355 6. Which of the followingis the aritical value at a = 0.05? B. 1.96 C 11833 D. +2.262 A 1645 7. Whatis the dedision in the test with 0.05 level of significance? A Fail to reject the null hypothesis. B. Reject the null hypothesis C The given information is not enough to make any conclusion D. Cannot be determine.

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Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.