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The accompanying data on food intake (in kcal) for 15 men on the day following two...
A physical therapist wanted to know whether the mean step pulse of men was less than...
A
physical therapist wanted to know whether the mean step pulse of
men was less than the mean step pulse of women she randomly
selected 60 men and 78 women to participate in the study each
subject was required to step up and down 6 inch platform the pulse
of each subject was then recorded the following results were
obtained
n Two sample T for Men vs Women N Mean StDev Men 60 112.2 11.5 Women 78 118.9 14.4 99%...
b) Identify the P-value and state the researcher’s conclusion if the level of significance was a...
b) Identify the P-value and state the researcher’s
conclusion if the level of significance was a = 0.001. What is the
P-value?
P = __
State the researcher’s conclusion. Which of the following
is correct?
A. Fail to reject H0, there is not sufficient evidence to conclude
that the mean step pulse of men was less than the mean step pulse
of women.
B. Reject H0, there is not sufficient evidence to conclude that the
mean step pulse of men...
a) State the null and alternative hypotheses. Which of the following is correct? A. H0: μ1=μ2;...
a) State the null and alternative hypotheses. Which of the
following is correct?
A. H0: μ1=μ2; Ha: μ1<μ2 This is the correct answer.
B. H0: μ1=μ2; Ha: μ1≠μ2
C. H0: μ1=μ2; Ha: μ1>μ2
(b) Identify the P-value and state the researcher's
conclusion if the level of significance was
α=_____
What is the P-value?
P-value=____
State the researcher's conclusion. Which of the following is
correct?
A. Fail to reject H0,there is sufficient evidence to conclude
that the mean step pulse of...
A random sample of companies in electric utilities (I), financial services (II), and food processing (III)...
A random sample of companies in electric utilities (I), financial services (II), and food processing (III) gave the following information regarding annual profits per employee (units in thousands of dollars). I II III 49.9 55.6 39.4 43.8 24.7 37.5 32.3 41.3 10.9 27.3 29.3 32.3 38.5 39.3 15.2 36.2 42.5 20.6 Shall we reject or not reject the claim that there is no difference in population mean annual profits per employee in each of the three types of companies? Use...
A fast food junkie hypothesizes that how often a student goes out for fast food will...
A fast food junkie hypothesizes that how often a student goes out for fast food will vary based on their favorite fast food restaurant (Arby's, McDonald's, Taco Bell, Wendy's). To prove this a sample of 52 college students were asked how many times a week they go out for fast food and what fast food restaurant is their favorite. The data was analyzed using SPSS and the following output was generated: ANOVA Sig How many times a week do you...
Chicken diet and weight. In previous chapter, we compared the effects of two types of feed...
Chicken diet and weight. In previous chapter, we compared the effects of two types of feed at a time. A better analysis would first consider all feed types at once: casein, horsebean, linseed, meat meal, soybean, and sunflower. The ANOVA output below can be used to test for differences between the average weights of chicks on different diets. DF Sum Sa Mean Sq F value Pr(>F) feed 5 231129.16 46225.83 15.36 0.0000 residuals 65195556.02 3008.55 Conduct a hypothesis test to...
DATA 4.1 Does Light at Night Affect Weight Gain? Numerous studies have shown that exposure to lig...
DATA 4.1 Does Light at Night Affect Weight Gain? Numerous studies have shown that exposure to light at night is harmful to human health. A recent study? examines the effect of light at night on body mass gain in mice. Eighteen mice were randomly assigned to one of two groups: the Dark group had a normal light/dark cycle with darkness at night and the Light group had a dim light on at night, equivalent to having a television set on...
PSYC371 Calculating the INDEPENDENT-samples t-statistie' 15 points Assignment #11 PROBLEM: A scientist would like...
PSYC371 Calculating the INDEPENDENT-samples t-statistie' 15 points Assignment #11 PROBLEM: A scientist would like to know if sleeping in a room with a night light on will affect quality of sleep. The table shows hourly nights of quality sleep reported by two independent groups in the experiment. Participants were randomly assigned to either the 'light' or 'NO Light' conditions. Light - 6 6 7 7 score minus mean score minus mean squared 7-6.55 0.45 0. 20.2029 6-6.5 = "0.95 -0.52...
1. We reject the null hypothesis only when: a. our sample mean is larger than the population mean. b. the p value asso...
1. We reject the null hypothesis only when: a. our sample mean is larger than the population mean. b. the p value associated with our test statistic is greater than the significance level of the test we have chosen. c. our sample mean is smaller than the population mean. d. the p value associated with our test statistic is smaller than the significance level of the test we have chosen. 2. In a study of simulated juror decision making, researchers...
photos for each question are all in a row (1 point) In the following questions, use...
photos for each question are all in a row
(1 point) In the following questions, use the normal distribution to find a confidence interval for a difference in proportions pu - P2 given the relevant sample results. Give the best point estimate for p. - P2, the margin of error, and the confidence interval. Assume the results come from random samples. Give your answers to 4 decimal places. 300. Use 1. A 80% interval for pı - P2 given that...
A
physical therapist wanted to know whether the mean step pulse of
men was less than the mean step pulse of women she randomly
selected 60 men and 78 women to participate in the study each
subject was required to step up and down 6 inch platform the pulse
of each subject was then recorded the following results were
obtained
n Two sample T for Men vs Women N Mean StDev Men 60 112.2 11.5 Women 78 118.9 14.4 99%...
b) Identify the P-value and state the researcher’s
conclusion if the level of significance was a = 0.001. What is the
P-value?
P = __
State the researcher’s conclusion. Which of the following
is correct?
A. Fail to reject H0, there is not sufficient evidence to conclude
that the mean step pulse of men was less than the mean step pulse
of women.
B. Reject H0, there is not sufficient evidence to conclude that the
mean step pulse of men...
a) State the null and alternative hypotheses. Which of the
following is correct?
A. H0: μ1=μ2; Ha: μ1<μ2 This is the correct answer.
B. H0: μ1=μ2; Ha: μ1≠μ2
C. H0: μ1=μ2; Ha: μ1>μ2
(b) Identify the P-value and state the researcher's
conclusion if the level of significance was
α=_____
What is the P-value?
P-value=____
State the researcher's conclusion. Which of the following is
correct?
A. Fail to reject H0,there is sufficient evidence to conclude
that the mean step pulse of...
A fast food junkie hypothesizes that how often a student goes out for fast food will vary based on their favorite fast food restaurant (Arby's, McDonald's, Taco Bell, Wendy's). To prove this a sample of 52 college students were asked how many times a week they go out for fast food and what fast food restaurant is their favorite. The data was analyzed using SPSS and the following output was generated: ANOVA Sig How many times a week do you...
Chicken diet and weight. In previous chapter, we compared the effects of two types of feed at a time. A better analysis would first consider all feed types at once: casein, horsebean, linseed, meat meal, soybean, and sunflower. The ANOVA output below can be used to test for differences between the average weights of chicks on different diets. DF Sum Sa Mean Sq F value Pr(>F) feed 5 231129.16 46225.83 15.36 0.0000 residuals 65195556.02 3008.55 Conduct a hypothesis test to...
DATA 4.1 Does Light at Night Affect Weight Gain? Numerous studies have shown that exposure to light at night is harmful to human health. A recent study? examines the effect of light at night on body mass gain in mice. Eighteen mice were randomly assigned to one of two groups: the Dark group had a normal light/dark cycle with darkness at night and the Light group had a dim light on at night, equivalent to having a television set on...
PSYC371 Calculating the INDEPENDENT-samples t-statistie' 15 points Assignment #11 PROBLEM: A scientist would like to know if sleeping in a room with a night light on will affect quality of sleep. The table shows hourly nights of quality sleep reported by two independent groups in the experiment. Participants were randomly assigned to either the 'light' or 'NO Light' conditions. Light - 6 6 7 7 score minus mean score minus mean squared 7-6.55 0.45 0. 20.2029 6-6.5 = "0.95 -0.52...
photos for each question are all in a row
(1 point) In the following questions, use the normal distribution to find a confidence interval for a difference in proportions pu - P2 given the relevant sample results. Give the best point estimate for p. - P2, the margin of error, and the confidence interval. Assume the results come from random samples. Give your answers to 4 decimal places. 300. Use 1. A 80% interval for pı - P2 given that...
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