We assume that blood strain, X, has a N(µ,σ2) distribution. To estimate µ and σ, we randomly sampled 9 folks and measured their blood strain. The pattern imply and pattern customary deviation are ¯ X = 110 and S = 6. Figuring out that based mostly on the t(Eight) distribution, zero.Eight-quantile = zero.9, zero.85-quantile = 1.1, zero.9quantile = 1.four, and zero.95-quantile = 1.9, reply the following questions.a- Write down the point estimate for µ together with its customary error. b- Write down the margin of error at zero.Eight confidence degree. c- Write down the 80% confidence interval estimation for µ based mostly on this pattern. d- Assume that we wish to take a look at the null speculation H0 : µ = 120 utilizing a one pattern t take a look at, what’s the t rating?

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