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KATRIN_1 [288]
3 years ago
10

One of your friends is testing the effect of drinking coffee on the duration of cold symptoms. The common cold lasts, on average

, 6 days. She starts with no expectations as to whether drinking coffee will have any effect at all on cold duration. After seeing the results of her experiment, in which the average cold duration was less than 6 days, she tests a one-sided alternative about the population mean cold duration when drinking coffee,
H0: μcoffee = 6


Ha: μcoffee < 6


She finds z = −1.68 with one-sided P-value P = 0.0465.


What is the correct two-sided P-value for z = −1.68? Round your answer to 4 decimal places.
Mathematics
1 answer:
Goshia [24]3 years ago
3 0

Answer: 0.0930

Step-by-step explanation:

As per given , we have

H0: μcoffee = 6

Ha: μcoffee < 6

She finds z = −1.68 with one-sided P-value P = 0.0465.

The P-value for two-tailed test is calculated by :

2P(Z>|z|)

For z= -1.68 , we have

2P(Z>|-1.68|)=2P(Z>1.68)

=2(1-P(z\leq1.68))\ \ [\because\ P(Z>z)=1-P(Z\leq z)]

=2(1-0.9535213)\ \ \ [\text{ NORM.S.DIST(z, TRUE}]\\\\=2( 0.0464787)=0.0929573\approx0.0930  

Hence, the correct two-sided P-value for z = −1.68 is 0.0930 .

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Please help me with this question!
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6 pennies, 12 nickels, 8 dimes, 4 quarters = 30 coins

a) add the probability for drawing a dime and drawing a quarter together:
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The probability is 2/25 or 8%

c) multiply the probability for drawing quarters but take away one of the total coins and the amount of quarters each time:
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Step-by-step explanation:

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You are still debating about the two different computers. If you are paid $10.00/hour and your deductions are FICA (7.65%), fede
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Answer:

89 hours

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Time required = 89 hrs

Final answer:

89 hours

8 0
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