American -ARABIC 101 -Write down the point estimate for
November 21st, 2022
We assume that blood pressure, X, has a N(Âµ,σ2) distribution. To estimate Âµ and σ, we randomly sampled 9 people and measured their blood pressure. The sample mean and sample standard deviation are Â¯ X = 110 and S = 6. Knowing that based on the t(8) distribution, 0.8-quantile = 0.9, 0.85-quantile = 1.1, 0.9quantile = 1.4, and 0.95-quantile = 1.9, answer the following questions.a- Write down the point estimate for Âµ along with its standard error. b- Write down the margin of error at 0.8 conﬁdence level. c- Write down the 80% conﬁdence interval estimation for Âµ based on this sample. d- Assume that we want to test the null hypothesis H0 : Âµ = 120 using a one sample t test, what is the t score?