• The value of the test statistic is given by Vn • The p-value is the area under the curve to the right of the value of the test statistic. Standard Normal Distribution 0.4 Step 1: Select one-tailed or two-tailed. O One-tailed O Two-tailed 0.3 Step 2: Enter the test statistic. (Round to 3 decimal places.) 0.2+ Step 3: Shade the area represented by the p-value. 0.1+ Step 4: Enter the p-value. (Round to 3 decimal places.)

A First Course in Probability (10th Edition)
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ISBN:9780134753119
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Chapter1: Combinatorial Analysis
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Please assist with A,b,c Part C: Based on your answer to part b, choose what can be concluded, at the 0.05 level of significance, about the claim made by the studio. Is the p value greater than or less than the level of confidence. Is there enough evidence to support the claim that the mean player rating is high than 90?
• The value of the test statistic is given by
Vn
• The p-value is the area under the curve to the right of the value of the test statistic.
Standard Normal Distribution
0.4
Step 1: Select one-tailed or two-tailed.
O One-tailed
O Two-tailed
0.3
Step 2: Enter the test statistic.
(Round to 3 decimal places.)
0.2 +
Step 3: Shade the area represented by
the p-value.
0.1+
Step 4: Enter the p-value.
(Round to 3 decimal places.)
Transcribed Image Text:• The value of the test statistic is given by Vn • The p-value is the area under the curve to the right of the value of the test statistic. Standard Normal Distribution 0.4 Step 1: Select one-tailed or two-tailed. O One-tailed O Two-tailed 0.3 Step 2: Enter the test statistic. (Round to 3 decimal places.) 0.2 + Step 3: Shade the area represented by the p-value. 0.1+ Step 4: Enter the p-value. (Round to 3 decimal places.)
After a lot of hard work, a studio releases a new video game. The studio believes that the game will be liked by players; in particular,
the studio claims that the mean player rating, µ, will be higher than 90. In a random sample of 72 players, the mean rating is 91.6.
Assume the population standard deviation of the ratings is known to be 12.7.
Is there enough evidence to support the claim that the mean player rating is higher than 90? Perform a hypothesis test, using the
0.05 level of significance.
(a) State the null hypothesis H and the alternative hypothesis H,.
O<O
OSO
ロ>ロ
H: 0
ロ=ロ
ロロ
(b) Perform a Z-test and find the p-value.
Here is some information to help you with your Z-test.
Ix
Transcribed Image Text:After a lot of hard work, a studio releases a new video game. The studio believes that the game will be liked by players; in particular, the studio claims that the mean player rating, µ, will be higher than 90. In a random sample of 72 players, the mean rating is 91.6. Assume the population standard deviation of the ratings is known to be 12.7. Is there enough evidence to support the claim that the mean player rating is higher than 90? Perform a hypothesis test, using the 0.05 level of significance. (a) State the null hypothesis H and the alternative hypothesis H,. O<O OSO ロ>ロ H: 0 ロ=ロ ロロ (b) Perform a Z-test and find the p-value. Here is some information to help you with your Z-test. Ix
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