1. drawn bell shaped curved showing rejected/ non rejection with an alpha value of 0.05

2. determine regression of the line equation y=bx+a

3. Find a and b

4. let 20 be x and what it indicated

5. Then set it up for 95% prediction interval

x	y	xy	x^2	y^2
19	7	133	361	49
23	10	230	529	100
25	3	75	625	9
15	12	180	225	144
67	4	268	4489	16
54	2	108	2916	4
68	2	136	4624	4
21	4	84	441	16
14	8	112	196	64
17	7	119	289	49
48	3	144	2304	9
18	6	108	324	36
=389	=68	=1697	=17323	=500

Solutions

Expert Solution

We have to find

1. drawn bell shaped curved showing rejected/ non rejection with an alpha value of 0.05

2. determine regression of the line equation y=bx+a

3. Find a and b

4. let 20 be x and what it indicated

Answers:

We plot the bell shape curve of response variable y by manually as well as using excel,

for the plot the value of y and corresponding probablity distribution is

y	2	2	3	3	4	4	6	7	7	8	10	12
Distribution	0.064852	0.064852	0.087868	0.087868	0.108162	0.108162	0.122906	0.113455	0.113455	0.095151	0.050188	0.018036

Plot:

orchestra answered 1 year ago

Next > < Previous

Related Solutions

1. Data are drawn from a bell-shaped distribution with a mean of 160 and a standard...

1. Data are drawn from a bell-shaped distribution with a mean of 160 and a standard deviation of 5. There are 1,400 observations in the data set. a. Approximately what percentage of the observations are less than 170? (Round your answer to 1 decimal place.) percentage of observations ______________% b. Approximately how many observations are less than 170? (Round your answer to the nearest whole number.) number of observations ______________ 2. Data with 850 observations are drawn from a bell-shaped...

Data are drawn from a relatively symmetric and bell shaped distribution with a mean of 30...

Data are drawn from a relatively symmetric and bell shaped distribution with a mean of 30 and a standard deviation of 3. a.) what percentage of the observations fall between 27 and 33? b.) what percentage of the observations fall between 24 and 36? c.) what percentage of the observations are less than 24?

alpha value is 0.05 if it is not specified in the problem. **Everything should be in...

alpha value is 0.05 if it is not specified in the problem. **Everything should be in r code base. 4. Back to the iris dataset one last time! We wish to estimate the probability of a flower’s species based on the available measurements. a. Build a Multinomial model to predict Species based on Sepal.Length. Use it to estimate the probability of each species for a flower with a sepal 6.3 cm long. b. Build a Multinomial model to predict Species...

1.Suppose a student is trying to construct a rejection region with an area of 0.05 in...

1.Suppose a student is trying to construct a rejection region with an area of 0.05 in the right tail. What critical value should she use? Round your answer to three decimal places. 2. A researcher wants to test to see if husbands are significantly older than their wives. To do this, he collects the ages of husbands and pairs them with the ages of their respective wives for a random set of married couples. Suppose that data were collected for...

1. According to the empirical rule, for a distribution that is symmetric and bell-shaped, approximately _______...

1. According to the empirical rule, for a distribution that is symmetric and bell-shaped, approximately _______ of the data values will lie within 3 standard deviations on each side of the mean. 2. Assuming that the heights of boys in a high-school basket- ball tournament are normally distributed with mean 70 inches and standard deviation 2.5 inches, how many boys in a group of 40 are expected to be taller than 75 inches? 3. Let x be a random variable...

1. Explain the Bell-shaped curve? 2. What is the difference between the Normal Distribution and the...

1. Explain the Bell-shaped curve? 2. What is the difference between the Normal Distribution and the Standard Normal Distribution?

Determine the test statistic, the P-value, and test the hypothesis at the alpha equals 0.05α=0.05 level...

Determine the test statistic, the P-value, and test the hypothesis at the alpha equals 0.05α=0.05 level of significance. Outcome Observed Expected 0 3 1.6 1 40 25.5 2 121 153.1 3 442 408.4 4 391 408.4

Assuming 0.05 as your alpha value: Find the mean Find the standard deviation Find the E...

Assuming 0.05 as your alpha value: Find the mean Find the standard deviation Find the E value Find the confidence interval The values are as follows: $2.53 $2.51 $2.26 $2.90 $2.33 $2.32 $2.21 $2.25 $2.56 $2.59 $2.67 $2.61 $2.48 $2.31 $2.47 $2.86 $2.36 $2.54 $2.63 $2.29 $2.31 $2.46 $2.47 $2.52 $2.38 $2.60 $2.59 $2.31 $2.25 $2.28 $2.40 $2.58 $2.37 $2.49 $2.29 $2.23 !

1/ The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights...

1/ The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 63 ounces and a standard deviation of 6 ounces. Use the Standard Deviation Rule, also known as the Empirical Rule. Suggestion: sketch the distribution in order to answer these questions. a) 68% of the widget weights lie between and b) What percentage of the widget weights lie between 45 and 69 ounces? % c) What percentage of the widget weights lie above...

1.) The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights...

1.) The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 65 ounces and a standard deviation of 6 ounces. Use the Standard Deviation Rule, also known as the Empirical Rule. Suggestion: sketch the distribution in order to answer these questions. a) 95% of the widget weights lie between and b) What percentage of the widget weights lie between 59 and 77 ounces? % c) What percentage of the widget weights...

Subjects