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Nataly
6 days ago
15

Joan conducted a study to see how common binge drinking is on her college campus. She defined "frequent binge drinking" as havin

g five or more drinks in a row three or more times in the past two weeks. Out of 593 students who replied to her survey, 64 fit this criterion. Joan wants to construct a significance test for her data. She finds that the proportion of binge drinkers nationally is 13.1%. The z statistic for this data is __________.
Mathematics
1 answer:
tester [11.9K]6 days ago
6 0
z = -1.66. The Z-statistic is calculated as follows. Here X signifies the obtained proportion. p stands for the mean proportion. The formula includes the standard error for the sample. From a total of 593 surveyed students, 64 met the criteria described. Thus, if the national percentage of binge drinkers is 13.1%, she has found the proportion in her data. The resulting z statistic for the dataset is derived accordingly.
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The graph of f(x) = 2x is shown on the grid. The graph of g(x) = ()x is the graph of f(x) = 2x reflected over the y-axis. Which
zzz [11880]

Response:

The graph in question is linked to g(x) = -2x, though it is not provided.

Detailed explanation:

A reflection across the y-axis changes the sign of the x-coordinate for every point. To derive the new function, we substitute x with -x:

g(x) = f(-x) = 2(-x) = -2x

This leads us to g(x) = -2x.

7 0
1 month ago
Read 2 more answers
What number should be placed in the spot presently filled with the X? Finished Product A 1 2 3 4 Gross Requirements (i.e. demand
babunello [11351]

Answer:

Here’s the answer below.

Step-by-step explanation:    

Finished Product A                   1 2 3 4

Gross Requirements                        20 20 50 30

Scheduled Receipts                    25  

Planned Delivery                             0  

Projected on Hand Inventory 30 10 15 40 10

Planned Order Release                   0    

safety stock                                  10    

3 0
21 day ago
Annual income of A is 10% more than of B whereas income of B is 20% more than that of C. If monthly income of C is $ 2000 then w
tester [11942]

Answer:

7040

Step-by-step explanation:

C= 2000

B = 20/100 x 2000 = 400 + 2000 = 2400

A= 10/100 x 2400 = 240+2400= 2640

2000 + 2400 + 2640 = 7040

3 0
10 days ago
Jake forgot to replace the cap on a bottle of deodorant. The deodorant began to evaporate at the rate of 12% per day. If the ori
PIT_PIT [11945]

Answer:

graph representing the function f of x equals 30 multiplied by 0.88 raised to the exponent of x

Step-by-step explanation:

The deodorant starts to evaporate, indicating a mass reduction, thus 12% represents the decay rate. In exponential decay, the function's graphical representation adheres to the formula:

y=a(1-r)^x

Where a signifies the starting quantity (a=30), r is the decay rate (r=0.12) and x denotes the time intervals, measured in days for this case. By inserting the given values into the formula:

y=30(1-0.12)^x\\y=30(0.88)^x

Which aligns with the "graph representing the function f of x equals 30 multiplied by 0.88 raised to the exponent of x".

3 0
8 days ago
Tyler wants to use $300 he has saved to buy a new guitar and join a music club. The guitar costs $140. The music club has a $25
tester [11942]

Answer:

ok __?__ equals 11 and ___ equals 3.55

Step-by-step explanation:

Start by subtracting 140 and 25 from 300, then divide by 11.95 which results in 11; subsequently, multiply 11 by 11.95 and deduct that from 135.

4 0
1 month ago
Read 2 more answers
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