60 50 40 30 20 10 53.5 57.5 61.5 65.5 69.5 73.5 77.5 815 Exam Scores Range Frequency Below 61.5 12 61.5-65.5 30 65.5-69.5 69 69.5-73.5 59 27 73.5-77.5 Above 77.5 3 The graph and table above show results from the same random sample of 200 exam scores. At a 10% Le of Significance, test to see if the data fits a normal distribution with mean µ = 69.5 and standard deviation o = 4. To figure out the E column, use the Empirical Rule: (68% within one standard deviation, 95% within two standard deviations, the rest beyond two standard deviations. Note: Even if you get E < 5, go ahead and proceed as usual; do not combine categories. 1. The hypotheses are : O Ho:Exam scores are not normally distributed Ha:Exam scores are normally distributed Ho:Exam scores are normally distributed Ha:Exam scores are not normally distributed Frequency

The salaries (in millions of dollars) for 29 NFL teams for 1999-2000 season are given in this frequency distributions.Class limits    Frequency39.9 – 42.8    242.9 – 45.8    245.9 – 48.8    548.9 – 51.8     551.9 –54.8    1254.9 – 57.8     3 Find sample mean, median and mode.

why.   The durations​ (in minutes) of power failures at a residence in the last 6 years are listed below.   32 13 123 23 56 64 71 123 71 53   What is the mean​ duration? Select the correct choice below and fill in any answer box to complete your choice.

Please help me!! this is all one question and I am required to submit it as whole!! i promise to rate it but please help me   The age distribution of the Canadian population and the age distribution of a random sample of 455 residents in the Indian community of a village are shown below. Age (years) Percent of Canadian Population Observed Numberin the Village Under 5 7.2%                   51             5 to 14 13.6%                   78             15 to 64 67.1%                   280             65 and older 12.1%                   46             Use a 5% level of significance to test the claim that the age distribution of the general Canadian population fits the age distribution of the residents of Red Lake Village. (a) What is the level of significance?State the null and alternate hypotheses. H0: The distributions are the same.H1: The distributions are different.H0: The distributions are the same.H1: The distributions are the same.    H0: The distributions are…

Do rats take less time on average than hamsters to travel through a maze? The table below shows the times in seconds that the rats and hamsters took. Rats: 36, 35, 22, 42, 25, 14, 31, 14 Hamsters: 41, 37, 12, 46, 39, 46, 38, 45, 27, 29 Assume that both populations follow a normal distribution. What can be concluded at the a = 0.05 level of significance level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Ho: Select an answer v Select an answer v Select an answer v (please enter a decimal) H: Select an answer v Select an answer v Select an answer v (Please enter a decimal) b. The test statistic (please show your answer to 3 decimal places.) c. The p-value = (Please show your answer to 4 decimal places.) d. The p-value is ? ♥ a e. Based on this, we should Select an answer f. Thus, the final conclusion is that ... the null hypothesis. O The results are statistically insignificant at a = 0.05, so there is statistically…

Just part B please

The table below gives the number of hours spent watching TV last week by a sample of 24 children. 83 49 57 34 55 78 43 53 69 22 23 50 20 80 70 22 26 22 31 30 51 79 93 19 Range = Standard Deviation = Round your answers to the nearest hundredth as needed.

Only b and c

How many observations are in the data set? How do I calculate this in the "R" program?

The following are distances (in miles) traveled to the workplace by 18 employees of a certain hospital. 22 ,  14 ,  6 ,  9 ,  32 ,  11 ,  1 ,  15 ,  13 ,  28 ,  37 ,  18 ,  18 ,  14 ,  10 ,  24 ,  36 ,  2 Send data to calculator   Find 25th and 60th percentiles for these distances.(If necessary, consult a list of formulas.) (a) The 25th percentile: miles (b) The 60th percentile: miles