Math

StatisticsQ&A LibraryGiven that n = 31 data points are collecting when studying the relationship between average daily temperature and timespent sleeping, use the critical values table below to determine if a calculated value of r =-0.324 is significant or not.CV (+ and -)0.3040.2730.2500.2320.2170.2050.195df405060708090100df CV (+ and0.9970.9500.8780.8110.7540.7070.6660.6320.6020.576df CV (+ and - dfCV (+ and -)0.5550.5320.5140.4970.4820.4680.4560.4440.4330.4230.4130.4040.3960.3880.3810.3740.3670.3610.3550.3491223413232425262728293015161718192010Select the correct answer below:Question

Asked Apr 23, 2019

1 views

Select the correct answer below:

r is significant because it is between the positive and negative critical values.

r is not significant because it is between the positive and negative critical values.

r is significant because it is not between the positive and negative critical values.

r is not significant because it is not between the positive and negative critical values.

Step 1

**State the appropriate hypothesis:**

*The hypotheses are given below:*

*Null hypothesis:*

*H*_{0} : ρ = 0

That is, there is no significant relationship between the variables.

*Alternative hypothesis:*

*H*_{1} : ρ ≠ 0 (Two tail test).

That is, there is a significant relationship between the variables.

Step 2

**Given information:**

The sample size is *n *= 31,

The sample correlation coefficient is *r *= –0.324.

The degrees of freedom is *d.f* = *n *–2 = 31–2 = 29.

Step 3

**Obtain the critical value:**

The critical value is obtained from the given table, by using the following procedure:

- Locate the value
**29**in the column, named.*f* - Move towards the right along the row of
**29**, and find the value corresponding to the column, named**CV(+ and &n...**

Tagged in

Find answers to questions asked by student like you

Show more Q&A

Q: Directions: Draw the normal curve and shade in the specific region. Show formulas used and the subst...

A: Introduction:The normal distribution is a symmetric and mesokurtic continuous probability distributi...

Q: A researcher wants to investigate whether mindfulness training improves ability for employees to not...

A: A dependent variable is a variable which is being tested and measured in any scientific experiment.

Q: Is the magnitude of an earthquake related to the depth below the surface at which the quake occurs? ...

A: (a) Scatter diagram of the data:The line that best fits the data is least-squares regression line.Th...

Q: Hi. I need help with part (d) and (e) The bond behavior of reinforcing bars is an important determin...

A: (d) The error standard deviation:The formula to estimate the standard deviation (σ) of the error (ε)...

Q: Let S be a given sample space and let E and F be two events that have no common outcome and their un...

A: Probability of two events:It is given that E and F are the two events in sample space, S. The probab...

Q: You are asked to design a study to investigate the effectiveness of the Atkins diet (IV = diet, DV =...

A: Consider the population of all individuals in a particular city. A random sample of 40 individuals i...

Q: The results of a pre-test and a post-test for ten students is given below. Is there a significant di...

A: Denote µd as the median difference for post and pre-test.Hypotheses:Null hypothesis: The median diff...

Q: High in the Rocky Mountains, a biology research team has drained a lake to get rid of all fish. Afte...

A: The proportion of tagged trout in the lake is, p = 700/2000 = 0.35Let X be the number of tagged trou...

Q: Assume that a populatio of thousands of people whose responses were used to develop the anxiety test...

A: Hey, since there multiple subparts posted, we will answer first three subparts. If you want any spec...