A sample of students was taken measuring the hours studied for a test and the score on the test (out of a possible total of 350 points) x(#hours study) y(test score) Give the equation of the...

A sample of students was taken measuring the hours studied for a test and the score on the test (out of a possible total of 350 points)
x(#hours study)	y(test score)	Give the equation of the regression line
5	155	Predict test score for 12 hours of study
7	210	What is r
8	150	What % of the variation in test scores is explaines by #hours of study
10	192
11	245
13	260
15	270
18	275
20	290

Sheet1 Question 1 A sample of students was taken measuring the hours studied for a test and the score on the test (out of a possible total of 350 points) x(#hours study)y(test score)Give the equation of the regression line 5155Predict test score for 12 hours of study 7210What is r 8150What % of the variation in test scores is explaines by #hours of study 10192 11245 13260 15270 18275 20290 Sheet2 Question 2 A cat breeder wants to estimate the true average weight of all Maine Coon cats. A sample of 35 Maine Coons was taken and the sample mean was recorded at 14.7 lbs with standard deviation of 3.4 lbs. Construct a 98% CI for mu the true average weight of the cats. Give E the error of estimate Give the upper and lower bounds to the CI State in words what we can assert with 98% confidence Sheet3 Question 3 Test the claim that the mean weight of chihuahuas is at least 10 lbs. A sample of 60 chihuahuas found the mean of the sample to be 9.4 lbs. and standard deviation = 2.1 lbs. Give the following: µDraw the curve showing mu, x bar, z, shaded p value x bar s n standard error z p value Should we reject the hypothesis Sheet4 Question 4 To test the claim that it takes at least 16 minutes to perform a certain task, 6 test runs were taken. The results were: 12, 13, 17, 13, 15, 14 Give the following µDraw the curve showing mu, x bar, t, shaded p value x bar s n standard error t p value Should the HYP be rejected? Sheet5 Question 5 Test the null hypothesis: No significant difference in the average daily production of sewing machine operators Operator1Operator2Operator3 101110Give the sample means and the grand mean 131315Show all numbers for SSA and SSW 9813Give the ANOVA table 111611What is the critical F for alpha = .05? 121216What is the p value? Should we reject the HYP? Is the difference in output for the 3 operators significant? (Answer yes or no) Draw the curve showing The Calculated F, the Critical F and the shaded 5% reject region Draw the curve showing the Calculated F and the shaded p value Sheet6 Question 6 Test if stress level is independent of commuting time Stress level HighModerateLow Commuting TimeGive the expected frequencies rounded to nearest tenth Under 15 minutes151912Give the calculated chi square 15-45 minutes131021Give the critical chi square Over 45 minutes19127Give the p value Is stress level independent of commuting time? Yes or no. Draw the curve showing the calculated and critical F with the shaded reject region Draw the curve showing the calculated F and the shaded p value