List the seven stages in the ONLINE consumer decision-making process.

A certain website wants you to build a 6-character password from the letters a through i, the numbers 0 − 9, or the symbols @, #, or &. Clearly, the order of the characters in the password matters

(a) How many passwords are there in total?

(b) How many passwords are there that consist of distinct characters?

(c) How many passwords have the first two characters be letters, the middle two character be one of the symbols and the last two characters be numbers where each character does not have to be distinct?

Bath Fixtures Supply, Inc. (BFSI), manufactures three types of fixtures: industrial, standard, and brass. It applies all indirect costs according to a predetermined rate based on direct labor-hours. A consultant recently suggested that the company switch to an activity-based costing system and prepared the following cost estimates for year 2 for the recommended cost drivers.

1. A recent study of seat belt use found that for a random sample of 117 female Hispanic drivers in Boston; 68 were wearing seat belts. Is this sufficient evidence to claim that the proportion of all female Hispanic drivers in Boston who wear seat belts is greater than 50%. Use a significance level of 5%.
   1. This problem is about (circle the correct one):

One population proportion                      Two population proportions        

One population mean                             Two populations means (Independent samples)

One population standard deviation        Two populations means (paired samples)

Two population standard deviations

2. State the null and alternate hypotheses.

3. What is the level of significance?

4. List the requirements and show the numbers or information given to meet each requirement.

5. Circle which of the following Statcrunch methods you would use to test the hypothesis stated in part (b).

Proportion Stats – One sample         Proportion Stats-Two samples

Variance Stats – One sample           Variance Stats – Two samples

T Stats - One sample                 T Stats-Two samples (Independent)

T Stats - Paired

6. If the P-value = 0.0395, show details of determining if Ho is rejected or not.

7. Write the interpretation of the results of the hypothesis test.

7. (8%) How to dispense one liter of 3 M HCl solution if you have a bottle of HCl that you find in the chemical stores? The bottle contains the following information: “37% w / w HCl (aq), density: 1.19 kg / L, molecular weight of HCl = 36.5 g / mol. ”

Question 3

A brain specialist performed an experiment to see if sensory deprivation over an extended period of time reduces the alpha-wave frequencies produced by the brain. To determine this, 10 subjects, inmates of a Correctional Centre, were randomly selected.

First, the members of the group were allowed to remain in their cells. Seven days later, alpha-wave frequencies were measured in Hertz for all subjects (nonconfined).

After that, the same group of subjects were placed in solitary confinement for seven days and their alpha-wave frequencies were measured again in Hertz.

The data from both confined and nonconfined groups of the experiment are recorded in the following table.

Use a non-parametric test to investigate if the solitary confinement reduces the alpha-wave frequencies of the brain. In performing this test, state appropriate hypothesis (define any symbols used). Calculate the value of the test statistic, P-value of this test and write a meaningful conclusion.

Question 3

A brain specialist performed an experiment to see if sensory deprivation over an extended period of time reduces the alpha-wave frequencies produced by the brain. To determine this, 10 subjects, inmates of a Correctional Centre, were randomly selected.

First, the members of the group were allowed to remain in their cells. Seven days later, alpha-wave frequencies were measured in Hertz for all subjects (nonconfined).

After that, the same group of subjects were placed in solitary confinement for seven days and their alpha-wave frequencies were measured again in Hertz.

The data from both confined and nonconfined groups of the experiment are recorded in the following table.

Use a chi-square test to investigate if the solitary confinement reduces the alpha-wave frequencies of the brain. In performing this test, state appropriate hypothesis (define any symbols used). Calculate the value of the test statistic, P-value of this test and write a meaningful conclusion.

Can someone please explain this?

  The international candy association wants to predict chocolate bar prices. They have collected the following data for 16 samples.

a. Identify the dependent variable and independent variables.

b. Build a multiple linear regression model to predict chocolate bar price.

c. Can this model be used to make predictions? Explain

The Mozart Effect pertains to the hypothesis that listening to Mozart might induce a short-term improvement on the performance of certain kinds of mental tasks. A team of researchers were interested in seeing if this would apply to a general intelligence test. They do not know if this will improve or lower scores for this particular task but they collected data from two groups:

a. Treating these two groups as independent, answer the following:
* State the hypotheses for this analysis and if this is a one- or two-tailed test.
* State your alpha value and the critical values.
* Test this hypothesis (showing your calculations).
* State your decision regarding the null hypothesis.

b. Now, conduct those four steps again but treat these two groups as dependent (e.g., each row now belongs to the same person in a repeated-measures design).

c. Do the two tests lead to different conclusions? Comment on why or why not.