3. A researcher is interested in knowing if preterm infants with late metabolic acidosis and preterm infants without the condition differ with respect to urine levels of a certain chemical. The mean levels, standard deviations, and sample sizes from the two samples are given below. Assuming that the populations have equal variances: ttesti 38 8.5 3.5 32 6.85 2.6 a. Fill in the missing pieces of the Stata output. Two-sample t test with A variances X y combined diff Obs Ho: diff = 0 38 32 Sample With condition Without condition 70 diff mean(x) Ha: diff < 0 Pr(Tt) = 0.9845 Mean 8.5 6.85 7.745714 C n 38 32 mean(y) .567775 B mean 8.5 6.85 Std. Err. Std. Dev. [95% Conf. Intervall 3834311 D S 3.5 2.6 3.5 2.6 3.208015 Ha: diff != 0 Pr(|T| > |t|) = F 7.349579 5.9126 6.98079 .1552544 degrees of freedom = 9.650421 7.7874 8.510638 3.144746 t = E 68 Ha: diff> 0 Pr(Tt) = 0.0155 b. What is the conclusion of your test? c. Use this output to construct a 99% confidence interval for the difference between the two means.

The Ministry of Education has commissioned a study to determine students’ reading ability based on the level of illumination they were given for the type of reading material. The results of the trial are given below:  1. Conduct the appropriate statistical analyses to compare the reading ability for the two types of reading material while controlling for level of illumination. Clearly outline all your tests.2. What is your conclusion? 3. Has the assumptions of normality and homogeneity of variance been met? (Quote relevant statistics in your response and provide the necessary hypotheses)4. The JASP output and input of all the statistical analyses performed PLEASE INSERT ALL CALCULATIONS USING JASP SOFTWARE

(5). Calculate SS, variance and standard deviation for the following sample of n=7 scores: 8, 6, 5, 2, 6, 3, 5.

A researcher takes sample temperatures in Fahrenheit of 16 days from San Francisco (Group 1) and 22 days from Atlanta (Group 2). Test the claim that the mean temperature in San Francisco is less than the mean temperature in Atlanta. Use a significance level of a = 0.10. Assume the populations are approximately normally distributed with unequal variances. You obtain the following two samples of data. Round answers to 4 decimal places. San Francisco 77.4 94.8 77 80.9 84 Ho: M₁ 73.4 84.9 92 60.6 83.6 92.5 76.3 93.4 87.2 81.5 70.4 What are the correct hypotheses? Note this may view better in full screen mode. Select the correct symbols for each of the 6 spaces. Atlanta 85.4 92.8 80.2 87.9 80.6 77.9 72.9 75.9 72.1 76.7 80.4 92.5 75.9 72.1 97.7 89.2 88.1 80 92.2 86 96.2 91.9 p-value H₁: M₁ Based on the hypotheses, find the following: Test Statistic = -0.635 X = 0.2494 × OH₂ The p-value is greater than alpha OF H₂ to alpha. The correct decision is to fail to reject the null hypothesis or The…