Question

Using the data below, the Sugar and Calories columns give the grams of sugar and number of calories in one serving of a high fiber cereal. Conduct a hypothesis test at the ? = .02 los, to determine if there is a correlation between the Sugar content and amount of Calories. 1). Write the appropriate hypothesis to test the population correlation . H0: Ha: 2). Specify the level of significance = 3). Label the critical values and label the rejection regions. 4). Find the correlation coefficient ? . Label this in the graph above. 5). Decision: Reject H 0 or Do not reject H

Sugar | Calories |

6 | 140 |

9 | 200 |

6 | 160 |

9 | 170 |

10 | 170 |

17 | 190 |

13 | 190 |

18 | 210 |

19 | 190 |

10 | 170 |

10 | 160 |

Answer #1

Do questions A-D
The following table gives information on the amount of sugar (in
grams) and the calorie count in one serving of a sample of 8
varieties of Kellogg’s cereal.
Sugar (grams), ? 4 14 12 10 8 6 7 3
Calories, ? 110 140 130 110 120 100 120 190
a. Construct a scatter diagram for these data. Does the scatter
diagram exhibit a linear relationship between the amount of sugar
and the number of calories per serving?...

Test the hypothesis that most cereals have nine or less grams of
SUGAR per serving. Use the attached cereal sample and a
significance level of .05
Sugars
6
8
5
0
8
10
14
8
6
5
12
1
9
7
13
3
2
12
13
7
0
3
10
5
13
11
7
10
12
11
10
6
9
3
13
7
10
14
0
0

The data set shown below gives the calories and salt content in
17 brands of meat hot dogs.
Enter the data set into excel. Using excel perform a least
squares regression on the data set. Use Sodium as the y variable
and Calories as the x variable. Make a scatter plot with the
regression line plotted as well. Using excel compute the
correlation coefficient.
Insert the plot your created into a word document. Discuss the
scatter plot and regression line....

The better-selling candies are often high in calories. Assume
that the following data show the calorie content from samples of
M&M's, Kit Kat, and Milky Way II.
M&M's
Kit Kat
Milky Way II
240
235
200
230
225
228
250
215
202
220
245
190
240
210
180
Find the value of the test statistic. (Round your answer to two
decimal places.)
Find the p-value. (Round your answer to three decimal
places.)
p-value =
The National Football League (NFL) holds...

The table below shows the number of hours per day 11 patients
suffered from headaches before and after 7 weeks of soft tissue
therapy. At alphaαequals=0.01,
is there enough evidence to conclude that soft tissue therapy
helps to reduce the length of time patients suffer from headaches?
Assume the samples are random and dependent, and the population is
normally distributed. Complete parts (a) through (f).
Patient Daily headache hours (before)
Daily headache hours (after)
1 3.1 2.4
2 1.8 2.2...

3. (Lesson 11) Use Minitab Express to conduct a
chi-square test to determine if there is a relationship between
gender and whether the student said that they would prefer to win
an Academy Award, Nobel Prize, or Olympic Medal. Use the
five-step hypothesis testing procedure. [25 points]
Step 1: State hypotheses and check
assumptions
Step 2:Compute the test
statistic
Step 3: Determine the
p-value
Step 4: Make a decision (reject or fail
to reject the null)
Step 5: State a real...

2. (Lesson 11) The “Year” variable represents whether
each student identified as a first-year student, sophomore, junior,
or senior. Use Minitab Express to conduct a chi-square test to
determine if the proportions of students who identify as each year
are not all equal. Use the five-step hypothesis testing procedure.
[25 points]
Step 1: State hypotheses and check
assumptions
Step 2:Compute the test
statistic
Step 3: Determine the
p-value
Step 4: Make a decision (reject or fail
to reject the null)...

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