4. Calculate the values of t or a that corresponds to the given probabilities. (a) P(T > 1) = 0.95, n = 23 (b) PT

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4 Calculate The Values Of T Or A That Corresponds To The Given Probabilities A P T 1 0 95 N 23 B Pt T 1 (51.8 KiB) Viewed 27 times

4. Calculate the values of t or a that corresponds to the given probabilities. (a) P(T > 1) = 0.95, n = 23 (b) PT <t) = 0.95, n = 28 (c) P(T<t) = 0.35, n = 20 (d) P-1<T<!) = 0.95, n = 35 (e) P(Z > 2) = 0.9 (f) P(-<Z<?) = 0.99 5. Given that the following data is obtained from a normal distribution: 1.6.-0.7.0.1,-0.4.1.2,0.8.0.5, 0.3 (a) Calculate the point estimate of and o (b) What is the standard error for the sample mean? (c) Construct a 90% confidence interval for . 6. Given that the following data is came from a population that normally distribution: 49, -67, 8, 16,6,23, 28, 41, 14, 28, 56, 24, 75,60,-48 (a) Calculate the point estimate of and o. (b) What is the standard error for the sample mean? (e) Construct a 99% confidence interval for p. 7. In an experiment to determine the effect of hormones in male chicks, day old chicks from the same batch were randomly assigned to two groups. One group received androsterone (A) and the other dehydroandrosterone (B). The chicks were caged and fed under identical conditions. The comb sizes measured after two weeks were: A 57 120 101 127 120 117 104 73 52 68 B 89 30 82 55 39 60 96 31 88 45 Assume that the data are normally distributed with equal variances. (a) What is the point estimate for Mars and the standard error for DA - B (1) Construct a 95% confidence interval for AB.