in a study, 8 long-haired rats and 7 short haired rats were selected at random the heights of these rats were then measured. let μ1 and μ2 be the population mean height of both the long-haired and short-haired rats (respectively). Assume that the length measurements for both populations are normally distributed.
long-haired rats: n1=8, x̄1=185, s1=8
short-haired rats: n1=7, x̄2=198, s2=10
i) what is the evidence (very strong / strong / moderate / little or no) we have against the null hypothesis? Give a reason why you chose your answer.
ii) specify the distribution (including the degrees of freedom if relevent) to be used for computing the p-value, and then compute (or bracket) the p-value witin the accuracy of the tables.
iii) compute the observed value of the test statistic for testing H0: μ1 - μ2 = 0 and H1: μ1 - μ2 ≠ 0.
in a study, 8 long-haired rats and 7 short haired rats were selected at random the...
8. A random sample of 25 college males was obtained and each was asked to report their actual height and what they wished as their ideal height. A 95% confidence interval for μd= average difference between their ideal and actual heights was 0.8" to 2.2". Based on this interval, which one of the null hypotheses below (versus a two-sided alternative)can be rejected? A. H0: μd= 0.5 B. H0: μd= 1.0 C. H0: μd= 1.5 D. H0: μd= 2.0 9. The...
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CASE 1-5 Financial Statement Ratio Computation Refer to Campbell Soup Company's financial Campbell Soup statements in Appendix A. Required: Compute the following ratios for Year 11. Liquidity ratios: Asset utilization ratios:* a. Current ratio n. Cash turnover b. Acid-test ratio 0. Accounts receivable turnover c. Days to sell inventory p. Inventory turnover d. Collection period 4. Working capital turnover Capital structure and solvency ratios: 1. Fixed assets turnover e. Total debt to total equity s. Total assets turnover f. Long-term...