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QUESTION 20 A local diner would like to see an increase in the number of customers...

QUESTION 20

  1. A local diner would like to see an increase in the number of customers over the lunch hour. Currently, they average 25 customers per day over the lunch hour. They decide to offer a special menu of lunch deals at reduced rates to try to bring in more customers. Following the introduction of the new special lunch menu, they track data over the course of 24 days and find a sample mean of 35.6 customers with a standard deviation of 8.2 customers. Is this enough evidence that the average number of customers eating lunch daily at this restauarant has increased since the new lunch menu was introduced? Work with an alpha level of .05.

    What is the parameter for this hypothesis test?

    A.

    True mean number of customers who eat lunch daily at this restaurant
    B.

    True mean number of customers who eat lunch daily at this restaurant after the new special lunch menu was introduced
    C.

    true mean number of customers who eat lunch daily at this restaurant before the new special lunch menu was introduced
    D.

    true mean number of customers who identify this diner as their favorite restaurant for lunch

QUESTION 22

  1. A local diner would like to see an increase in the number of customers over the lunch hour. Currently, they average 25 customers per day over the lunch hour. They decide to offer a special menu of lunch deals at reduced rates to try to bring in more customers. Following the introduction of the new special lunch menu, they track data over the course of 24 days and find a sample mean of 35.6 customers with a standard deviation of 8.2 customers. Is this enough evidence that the average number of customers eating lunch daily at this restauarant has increased since the new lunch menu was introduced? Work with an alpha level of .05.

    Calculate the test statistic for this hypothesis test.

    A.

    0.633
    B.

    6.333
    C.

    10.6
    D.

    63.3

QUESTION 23

  1. A local diner would like to see an increase in the number of customers over the lunch hour. Currently, they average 25 customers per day over the lunch hour. They decide to offer a special menu of lunch deals at reduced rates to try to bring in more customers. Following the introduction of the new special lunch menu, they track data over the course of 24 days and find a sample mean of 35.6 customers with a standard deviation of 8.2 customers. Is this enough evidence that the average number of customers eating lunch daily at this restauarant has increased since the new lunch menu was introduced? Work with an alpha level of .05.

    The t-distribution will need to be used for this quantitative hypothesis test. What row on the t-distribution should be used for this problem?

    A.

    8
    B.

    18
    C.

    23
    D.

    25

QUESTION 24

  1. A local diner would like to see an increase in the number of customers over the lunch hour. Currently, they average 25 customers per day over the lunch hour. They decide to offer a special menu of lunch deals at reduced rates to try to bring in more customers. Following the introduction of the new special lunch menu, they track data over the course of 24 days and find a sample mean of 35.6 customers with a standard deviation of 8.2 customers. Is this enough evidence that the average number of customers eating lunch daily at this restauarant has increased since the new lunch menu was introduced? Work with an alpha level of .05 (95% confidence).

    The t-distribution will need to be used for this quantitative hypothesis test. To find the critical value for the rejection region, what column should be used? (Hint: remember this is a one-tailed directional specific hypothesis test.)

    A.

    .10
    B.

    .05
    C.

    .025
    D.

    .01

QUESTION 25

  1. A local diner would like to see an increase in the number of customers over the lunch hour. Currently, they average 25 customers per day over the lunch hour. They decide to offer a special menu of lunch deals at reduced rates to try to bring in more customers. Following the introduction of the new special lunch menu, they track data over the course of 24 days and find a sample mean of 35.6 customers with a standard deviation of 8.2 customers. Is this enough evidence that the average number of customers eating lunch daily at this restauarant has increased since the new lunch menu was introduced? Work with an alpha level of .05.

    The t-distribution will need to be used for this quantitative hypothesis test. What is the critical value that marks off the rejection region for this hypothesis test? (Hint: remember this is a one-tailed directional specific hypothesis test.)

    A.

    1.645
    B.

    1.714
    C.

    1.96
    D.

    2.069
math   Statistics-And-Probability   
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Answer #1

20. True mean number of customers who eat lunch daily at this restaurant after the new special lunch menu was introduced

22.

The value of test statistic t = 6.333

23. ans-> 23

24. ans-> 0.05

25. ans->1.714

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