A marine biologist claims that the mean lengin of mature female pink seaperch is difere sample of 8 mature female pink seaperch collected in winter has a mean length of 107 millimeters and a standard deviation of 12 millimeters. At a= 0.20, can you support the marine biologist's claim? Assume the population variances are equal. Assume the samples are random and independent, and the populations are normally distributed. Complete parts (a) through (e) below. end wint Asampie of 18 mature female pink seaperch colled nas a mean and a stan (a) Identify the claim and state Hg and Ha- Which is the correct claim below? O A. "The mean length of mature female pink seaperch is greater in the winter than in the fall." O B. "The mean length of mature female pink seaperch is different in fall and winter." OC. "The mean length of mature female pink seaperch is greater in the fall than in the winter." OD. "The mean length of mature female pink seaperch is the same in fall and winter." What are Ho and H? The null hypothesis, Hg. is V The alternative hypothesis, Ha. is Which hypothesis is the claim? O The null hypothesis, Hg O The altemative hypothesis, Ha Decide whether to reject or fail to reject the null hypothesis. V the null hypothesis. Interpret the decision in the context of the original claim. At the 20% significance level V enough evidence to support the claim that the mean lengths of mature female pink seaperch are different in fall and winter.

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A marine biologist claims that the mean length of mature female pink seaperch is different in fall and winter. A sample of 18 mature female pink seaperch collected in fall has a mean length of 111 millimeters and a standard deviation of 11 milimeters. A
sample of 8 mature female pink seaperch collected in winter has a
an length of 107 millimeters and a standard deviation of 12 millimeters. At a= 0.20, can y
you support the marine biologist's claim? Assume
population variances are equal. Assume
the samples are random and independent, and the populations are normally distributed. Complete parts (a) through (e) below.
(a) Identify the claim and state Hg and H.
Which is the correct claim below?
O A. "The mean length of mature female pink seaperch is greater in the winter than in the fall"
O B. "The mean length of mature female pink seaperch is different in fall and winter."
OC. "The mean length of mature female pink seaperch is greater in the fall than in the winter."
OD. "The mean length of mature female pink seaperch is the same in fall and winter."
What are Hg and Ha?
The null hypothesis, Hg. is
V The alternative hypothesis, Ha. is
Which hypothesis is the claim?
The null hypothesis, Ho
O The altemative hypothesis, Ha
Decide whether to reject or fail to reject the null hypothesis.
V the null hypothesis.
Interpret the decision in the context of the original claim.
At the 20% significance level,
V enough evidence to support the claim that the mean lengths of mature female pink seaperch are different in fall and winter.
Transcribed Image Text:A marine biologist claims that the mean length of mature female pink seaperch is different in fall and winter. A sample of 18 mature female pink seaperch collected in fall has a mean length of 111 millimeters and a standard deviation of 11 milimeters. A sample of 8 mature female pink seaperch collected in winter has a an length of 107 millimeters and a standard deviation of 12 millimeters. At a= 0.20, can y you support the marine biologist's claim? Assume population variances are equal. Assume the samples are random and independent, and the populations are normally distributed. Complete parts (a) through (e) below. (a) Identify the claim and state Hg and H. Which is the correct claim below? O A. "The mean length of mature female pink seaperch is greater in the winter than in the fall" O B. "The mean length of mature female pink seaperch is different in fall and winter." OC. "The mean length of mature female pink seaperch is greater in the fall than in the winter." OD. "The mean length of mature female pink seaperch is the same in fall and winter." What are Hg and Ha? The null hypothesis, Hg. is V The alternative hypothesis, Ha. is Which hypothesis is the claim? The null hypothesis, Ho O The altemative hypothesis, Ha Decide whether to reject or fail to reject the null hypothesis. V the null hypothesis. Interpret the decision in the context of the original claim. At the 20% significance level, V enough evidence to support the claim that the mean lengths of mature female pink seaperch are different in fall and winter.
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