in the study from the previous question, x=59 adults have been confirmed hypertensive out of n=200...
in the study from the previous question, x=59 adults have been confirmed hypertensive out of n=200 participants. Assuming the standard normal distribution can be applied and p=0.313 under the null hypothesis, what is the Z-statistic for x=59? Recall that the expected value = np and standard deviation = Squareroot np(1-p).
a. -0.55
b. 2.26
c. -1.96
d. 1.0
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in the study from the previous question, x=59 adults have been
confirmed hypertensive out of n=200...
In the study from the previous question, x=59 adults have been confirmed hypertensive out of n=200...
In the study from the previous question, x=59 adults
have been confirmed hypertensive out of n=200 participants.
Assuming the standard normal distribution can be applied and
p=0.313 under the null hypothesis, what is the Z-statistic for
x=59? Recall that the expected value = np and the standard
deviation =
.
= -0.55
Continuing from the previous question, if we observed 78
hypertensive adults in the 2nd random sample of 200, what is the
one-sided p-value associated with x=78, given the...
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Question 5 An carlier study claimed that U.S adults spent an average of 114 minutes per day with their family. A recently raken sample of 25 adults from a city show'eod that they spend an average of 109 minutes per day with their family, Ihe population deviation is I1 minutes. Assume that the times spent by adults with their families have an approximate normal distribution Using a 1% significance level test whether the mean time spent currently by all adults...
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Please answer all parts
8. A two-tailed hypothesis test for a repeated-measures design Previous studies have shawn that playing video games can increase visual perception abilities on tasks presented in the gaming zone of the screen within 5 degrees of the center). Agraduate student is interested in whether playing video games increases peripheral val perception abilities or decreases attention to peripheral regions because of focus on the gaming zone. For his study, he se ects ล random sample of 81...
In the study from the previous question, x=59 adults
have been confirmed hypertensive out of n=200 participants.
Assuming the standard normal distribution can be applied and
p=0.313 under the null hypothesis, what is the Z-statistic for
x=59? Recall that the expected value = np and the standard
deviation =
.
= -0.55
Continuing from the previous question, if we observed 78
hypertensive adults in the 2nd random sample of 200, what is the
one-sided p-value associated with x=78, given the...
Based on information from a previous study, r = 34 people out of a random sample of n = 101 adult Americans who did not attend college believe in extraterrestrials. However, out of a random sample of n2 = 101 adult Americans who did attend college, '2 = 47 claim that they believe in extraterrestrials. Does this indicate that the proportion of people who attended college and who believe in extraterrestrials is higher than the proportion who did not attend...
Question 5 An carlier study claimed that U.S adults spent an average of 114 minutes per day with their family. A recently raken sample of 25 adults from a city show'eod that they spend an average of 109 minutes per day with their family, Ihe population deviation is I1 minutes. Assume that the times spent by adults with their families have an approximate normal distribution Using a 1% significance level test whether the mean time spent currently by all adults...
6. A two-tailed hypothesis test for a repeated-measures research design Previous studies have shown that playing video games can increase visual perception abilities on tasks presented in the gaming zone of the screen (within 5 degrees of the center). A graduate student is interested in whether playing video games increases peripheral visual perception abilities or decreases attention to peripheral regions because of focus on the gaming zone. For his study, he selects a random sample of 81 adults. The subjects...
Please see the questions below from the attached picture.
It has been claimed from previous studies that the average
diameter of ball bearings from this manufacturing process is 2.30
cm. Based on the sample of 50 that you collected, is there evidence
to suggest that the average diameter is greater than 2.30 cm?
Perform a hypothesis test for the population mean at alpha =
0.01.
Please answer the below:
Define the null and alternative hypothesis for this test in
mathematical...
A simple random sample of 59 adults is obtained from a normally distributed population, and each person's red blood cell count (in cells per microliter) is measured. The sample mean is 5.27 and T-Test the sample standard deviation is 0.52. Use a 0.01 significance level and the given calculator display to test the claim that the sample is from a population with a mean less than 54, which is a value μ 5.4 often used for the upper limit of...
2. Hypothesis tests about a population mean, population standard deviation known Aa Aa Lenders tighten or loosen their standards for issuing credit as economic conditions change. One of the criteria lenders use to evaluate the creditworthiness of a potential borrower is her credit risk score, usually a FICO score. FICO scores range from 300 to 850. A consumer with a high FICO score is perceived to be a low credit risk to the lender and is more likely to be...
Please answer all parts
8. A two-tailed hypothesis test for a repeated-measures design Previous studies have shawn that playing video games can increase visual perception abilities on tasks presented in the gaming zone of the screen within 5 degrees of the center). Agraduate student is interested in whether playing video games increases peripheral val perception abilities or decreases attention to peripheral regions because of focus on the gaming zone. For his study, he se ects ล random sample of 81...
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